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Preprint REVIEW | doi:10.20944/preprints201912.0048.v2

The Role of Nanofluids and Renewable Energy in the Development of Sustainable Desalination Systems: A Review

Tejvir Singh, Muataz Ali Atieh, Tareq Al-Ansari, Abdul Wahab Mohammad, Gordon McKay

Subject: Engineering, Energy And Fuel Technology Keywords: thermal desalination; reverse osmosis; advanced heat transfer fluids; sustainable desalination practices; integrated solar thermal nanofluids based desalination

Online: 9 January 2020 (08:39:19 CET)

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Preprint ARTICLE | doi:10.20944/preprints202104.0632.v1

Distance Between Two Circles In Any Number Of Dimensions Is A Vector Ellipse

Asli Pinar Tan

Subject: Physical Sciences, Mathematical Physics Keywords: Conic Sections, Topology, Circle, Ellipse, Hyperbola, Parabola, Orbit, Trajectory, Orbital Mechanics, Solar System, Planetary System, Planet, Satellite, Comet, Sun, Earth, Moon

Online: 23 April 2021 (11:36:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201808.0363.v1

Quality Control of Solar Radiation Data within the South African Weather Service Solar Radiometric Network

Lucky Ntsangwane, Venkataraman Sivakumar, Brighton Mabasa, Nosipho Zwane, Katlego Ncongwane, Joel Botai

Subject: Physical Sciences, Applied Physics Keywords: quality control; BSRN; solar radiation; satellite-retrieve irradiance; ground stations; validation

Online: 21 August 2018 (04:23:52 CEST)

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Preprint REVIEW | doi:10.20944/preprints202007.0364.v1

Progress of MOF Derived Functional Materials toward Industrialization in Solar Cells and Metal-Air Batteries

Mohamed Elhousseini Hilal, Abdelkhalek Aboulouard, Abdul Rehman Akbar, Hussein A. Younus, Nesrin Horzum, Francis Verpoort

Subject: Chemistry And Materials Science, Electrochemistry Keywords: metal organic frameworks; catalysts; metal-air battery; solar cells; energy storage; energy

Online: 17 July 2020 (06:03:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202103.0573.v1

Modelling Using Machine Learning Models and Prediction of Monthly Global Irradiation

Cecilia Martinez-Castillo, Gonzalo Astray, Juan Carlos Mejuto

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: prediction; solar irradiation; machine learning; artificial neural network; random forest; vector support machine

Online: 23 March 2021 (15:51:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0367.v1

A Novel Approach for the Short-Term Forecast of the Effective Cloud Albedo

Isabel Urbich, Jörg Bendix, Richard Müller

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: effective cloud albedo; solar surface irradiance; optical flow; cloud motion vectors; renewable energies

Online: 28 April 2018 (11:32:20 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0075.v1

Highly Efficient, ITO-Free Polymer Solar Cells Using Ultrathin Copper Film as Transparent Electrode

Quanbin Liang, Guoping Luo, Xiaoping Cheng, Hongbin Wu

Subject: Chemistry And Materials Science, Polymers And Plastics Keywords: ITO-free polymer solar cells; resonant microcavity; ultrathin Cu film

Online: 7 November 2019 (09:51:49 CET)

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Preprint ARTICLE | doi:10.20944/preprints202111.0572.v1

Synthesis and Characterization of Al-doped NiO Nanostructured Thin Films Elaborated by Solar Spray Pyrolysis Technique, for Photovoltaic Cells

Abdelbaki NID, Lilia ZIGHED, Yacine AOUN, Bedreddine MAAOUI

Subject: Physical Sciences, Applied Physics Keywords: Nickel oxide; Thin films; Al doping ratio; Solar spray pyrolysis; Solar heater; Furnace.

Online: 30 November 2021 (13:29:11 CET)

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Preprint ARTICLE | doi:10.20944/preprints201806.0098.v1

Effect of Reflector Geometry in the Annual Received Radiation of Low Concentration Photovoltaic Systems

João Paulo N. Torres, Carlos A. F. Fernandes, João Gomes, Bonfiglio Luc, Carine Giovinazzo, Olle Olsson, P. J. Costa Branco

Subject: Engineering, Energy And Fuel Technology Keywords: C -PV solar systems, MaReCo, ray-tracing, reflector design, Soltrace.

Online: 6 June 2018 (14:15:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201912.0212.v1

Molecular Doping for Hole Transporting Materials in Hybrid Perovskite Solar Cells

Vanira Trifiletti, Thibault Degousée, Norberto Manfredi, Oliver Fenwick, Silvia Colella, Aurora Rizzo

Subject: Chemistry And Materials Science, Nanotechnology Keywords: molecular doping; perovskite solar cell; stability; hysteresis; F4-TCNQ

Online: 16 December 2019 (07:27:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202202.0002.v1

15-Year Analysis of Direct Effects of Total and Dust Aerosols in Solar Radiation/Energy Over the Mediterranean Basin

Kyriakoula Papachristopoulou, Ilias Fountoulakis, Antonis Gkikas, Panagiotis G. Kosmopoulos, Panagiotis T. Nastos, Maria Hatzaki, Stelios Kazadzis

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: aerosols; dust; direct radiative effects; solar energy; Mediterranean basin

Online: 1 February 2022 (10:58:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints201804.0303.v1

Application of Demand Response Strategy in Optimal Configuration of a Standalone Wind-Solar-Battery System

Xiaoling Yuan, Baole Huang, Jieyan Xu, Haoming Liu, Qingcheng Yao

Subject: Engineering, Electrical And Electronic Engineering Keywords: multi-objective optimization; optimal configuration; improved gravitational search algorithm (IGSA); wind-solar-battery system; demand response

Online: 24 April 2018 (04:05:05 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201908.0136.v1

Mode Splitting Induced by Mesoscopic Electron Dynamics in Strongly Coupled Metal Nanoparticles on Dielectric Substrates

Katarzyna Kluczyk-Korch, Lucjan Jacak, Witold Jacak, Christin David

Subject: Physical Sciences, Applied Physics Keywords: Autler-Townes splitting; nonlocal plasmonics; metalic nanoparticles on substrate; nonlocal plasmonic for solar cells

Online: 12 August 2019 (04:17:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202201.0393.v1

Towards Self-Powered WSN: The Design of Ultra-Low-Power Wireless Sensor Transmission Unit Based on Indoor Solar Energy Harvester

Fathi Mahdi Elsiddig Haroun, Siti Noratiqah Mohamad Deros, Ammar Ahmed Alkahtani, Norashidah Md Din

Subject: Engineering, Electrical And Electronic Engineering Keywords: Energy harvester; LoRa; solar power; ultra-low power; WSN

Online: 26 January 2022 (12:04:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0397.v1

Effect Of The Aerosol Vertical Distribution On The Modelling Of Solar Radiation

Ilias Fountoulakis, Kyriakoula Papachristopoulou, Emmanouil Proestakis, Vassilis Amiridis, Charalampos Kontoes, Stelios Kazadzis

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: aerosol profile; aerosol extinction coefficient; aerosol radiative effects; spectral solar radiation; solar radiation profile

Online: 26 January 2022 (12:52:00 CET)

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Preprint ARTICLE | doi:10.20944/preprints202110.0346.v1

Numerical Modelling Analysis for Carrier Concentration Level Optimization of CdTe Heterojunction Thin Film–Based Solar Cell with Different Non-Toxic Metal Chalcogenide Buffer Layers Replacements: Using SCAPS-1D Software

Samer H. Zyoud, Ahed H. Zyoud, Naser M. Ahmed, Atef Abdekader

Subject: Chemistry And Materials Science, Nanotechnology Keywords: Absorber Layer and Buffer Layer; CdTe; ZnSe; Conversion Efficiency; SCAPS-1D; Solar Cell

Online: 25 October 2021 (12:32:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202102.0585.v1

Ocean Thermal Energy Conversion – Flexible Enabling Technology for Variable Renewable Energy Integration in the Caribbean

R. J. Brecha, Katherine Schoenenberger, Masaō Ashtine, Randy Koon Koon

Subject: Engineering, Automotive Engineering Keywords: Ocean thermal energy conversion; OTEC; seawater air conditioning; SWAC; desalination; variable renewable energy; wind power; solar PV; 100% renewable energy; Caribbean

Online: 25 February 2021 (13:49:31 CET)

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Preprint ARTICLE | doi:10.20944/preprints202103.0069.v1

Influence of Traditional and Solar Reflective Coatings on the Heat Transfer of Building Roofs in Mexico

Iván Hernández-Pérez

Subject: Engineering, Automotive Engineering Keywords: Solar reflective coatings; Heat transfer; Heat gains; Building roofs

Online: 2 March 2021 (10:11:48 CET)

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Preprint ARTICLE | doi:10.20944/preprints201810.0452.v1

Solar Neutrinos Spectroscopy with Borexino Phase-II

Lino Miramonti, M. Agostini, K. Altenmueller, S. Appel, V. Atroshchenko, Z. Bagdasarian, D. Basilico, G. Bellini, J. Benziger, D. Bick, I. Bolognino, G. Bonfini, D. Bravo, B. Caccianiga, F. Calaprice, A. Caminata, S. Caprioli, M. Carlini, P. Cavalcante, F. Cavanna, A. Chepurnov, K. Choi, L. Collica, S. Davini, A. Derbin, X.F. Ding, A. Di Ludovico, L. Di Noto, I. Drachnev, K. Fomenko, A. Formozov, D. Franco, F. Gabriele, C. Galbiati, M. Gschwender, C. Ghiano, M. Giammarchi, A. Goretti, M. Gromov, D. Guffanti, C. Hagner, T. Houdy, E. Hungerford, Aldo Ianni, Andrea Ianni, A. Jany, D. Jeschke, V. Kobychev, D. Korablev, G. Korga, T. Lachenmaier, M. Laubenstein, E. Litvinovich, F. Lombardi, P. Lombardi, L. Ludhova, G. Lukyanchenko, L. Lukyanchenko, I. Machulin, G. Manuzio, S. Marcocci, J. Maricic, J. Martyn, E. Meroni, M. Meyer, M. Misiaszek, L. Papp, O. Penek, L. Pietrofaccia, N. Pilipenko, A. Pocar, A. Porcelli, G. Raikov, G. Ranucci, A. Razeto, A. Re, M. Redchuk, A. Romani, N. Rossi, S. Rottenanger, S. Schönert, D. Semenov, M. Skorokhvatov, O. Smirnov, A. Sotnikov, L.F.F. Stokes, Y. Suvorov, R. Tartaglia, G. Testera, J. Thurn, M. Toropova, E. Unzhakov, A. Vishneva, R.B. Vogelaar, F. von Feilitzsch, S. Weinz, M. Wojcik, M. Wurm, Z. Yokley, O. Zaimidoroga, S. Zavatarelli, K. Zuber, G. Zuzel

Subject: Physical Sciences, Particle And Field Physics Keywords: solar neutrinos; neutrino oscillation; Borexino

Online: 19 October 2018 (11:49:06 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0466.v1

Dye-Sensitized Solar Cell for Building-Integrated Photovoltaic (BIPV) Applications

Marek Szindler, Magdalena M Szindler, Aleksandra Drygała, Krzysztof Lukaszkowicz, Paulina Kaim, Pietruszka R.

Subject: Engineering, Automotive Engineering Keywords: Keywords: Renewable energy; Nanotechnology; Building-integrated photovoltaics (BIV); Thin films; Dye-sensitized solar cells

Online: 20 May 2021 (09:50:22 CEST)

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Preprint REVIEW | doi:10.20944/preprints201910.0329.v1

Prospects for hermetic sealing of scaled-up photoelectrochemical hydrogen generators for reliable and risk free operation

Sonya Calnan, Stefan Aschbrenner, Fuxi Bao, Erno Kemppainen, Iris Dorbandt, Rutger Schaltmann

Subject: Engineering, Energy And Fuel Technology Keywords: photoelectrochemical; solar hydrogen generator; hermetic sealing, reliability, safety, scale- up

Online: 29 October 2019 (10:19:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints201905.0354.v1

New Perspective on Performances and Limits of Solar Fresh Air Cooling in Different Climatic Conditions

Ancuta C. Abrudan, Octavian G. Pop, Alexandru Serban, Mugur C. Balan

Subject: Engineering, Energy And Fuel Technology Keywords: Solar cooling; Absorption chiller; LiBr-H2O; Operating conditions; Climatic conditions

Online: 29 May 2019 (15:17:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202312.1937.v1

Extreme Bad Weather, Large Atmospheric Electric Field Fluctuations and Anomalous Changes in the High Voltage Electric Power Network in Thrace, North-East Greece, during the Solar Activity and the Magnetic Superstorm of March 2012

Goergios Anagnostopoulos, Anastasios Karkanis, Athanasios Kampatagis, Panagiotis K. Marhavilas, Sofia-Anna Menesidou, Dimitrios Efthymiadis, Stefanos Keskinis, Dimitar Ouzounov, Nick Hatzigeorgiu, Michael Danikas

Subject: Physical Sciences, Other Keywords: Remote Sensing; Space Weather; Exterme Events; Solar-Terrestrial relationsnsip; Weather prediction; Atmospheric Electric Field; Geomagneticallt induced lectric currents

Online: 26 December 2023 (06:12:57 CET)

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In a recent paper, we extended previous studies on solar-terrestrial relationships by investigating the origin of the March 2012 heatwave in northeast USA. In the present study we check the possible relationship of solar activity with the early March 2012 bad weather in northeast Thrace, Greece. To this end, we examined data from various remote sensing instrumentation monitoring the Sun (SDO satellite), the Interplanetary Space (ACE satellite), the Earth’s magnetosphere (Earth based measurements, NOAA-19 satellite), the top of the clouds (TERRA and AQUA satellites) and the near ground atmosphere. Our comparative data analysis suggests that: (i) the winter-like weather (rainfall, fast winds, decreased temperature) in Thrace started on 6 March 2012, on the same day as the heatwave starting in USA, (ii) during the March 2012 winter-like event in Thrace (6-15 March), the ACE satellite recorded enhanced fluxes of solar energetic particles (SEPs), while SOHO and PAMELA recorded solar protons at very high energies (> 500 MeV), (iii) Thrace experienced particularly intense cyclonic circulation, during periods of magnetic storms on 8 - 10 and 12-13 March, which occurred after the arrival at ACE of two interplanetary shock waves, on March 8 and March 11, respectively, (iv) at the beginning of the two above mentioned periods large atmospheric electric fields were recorded, with values ranging between ~-2000V/m - ~1800V/m on 8 March, (v) the winter-like 8-10 March 2012 weather occurred after the detection of the main SEP event related with a coronal mass ejection released in the interplanetary space as a result of intense solar flare activity observed by SDO on 7 March 2012, (vi) the 8-10 March weather was related with a deep drop of ~630C in the cloud top temperature measured by MODIS/TERRA, which favors strong precipitation. Finally, we analyzed data from the electric power network in Thrace (~410N) and we found, for the first time sudden voltage changes of ~3.5kV in the electric grid in Greece, during the decay phase of the March 2012 superstorm. We discuss the winter-like March 2012 event in Thrace in terms of solar cosmic ray influence on the low troposphere mediated by positive NAO. Finally, we infer that the novel finding of the geomagnetic effects on the electric power grid in Thrace may open a new window into space weather applications research.

Preprint REVIEW | doi:10.20944/preprints202108.0133.v1

Organic Functionalized Carbon Nanostructures for Solar Energy Conversion

Luca Lazzarin, Mariacecilia Pasini, Enzo Menna

Subject: Chemistry And Materials Science, Analytical Chemistry Keywords: Carbon nanotubes, graphene, reduced graphene oxide, organic functionalization, dye, organic photovoltaics, dye sensitized solar cells, perovskite solar cells, photocatalytic hydrogen evolution

Online: 5 August 2021 (10:07:43 CEST)

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Preprint HYPOTHESIS | doi:10.20944/preprints202109.0200.v2

An Alternative Explanation of the Orbital Expansion of Titan and Other Bodies in the Solar System

Michal Křížek, Vesselin G. Gueorguiev, André Maeder

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: local Hubble expansion; Solar system; Titan; laws of conservation of energy and angular momentum

Online: 13 January 2022 (12:58:55 CET)

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Preprint ARTICLE | doi:10.20944/preprints202308.1820.v1

Techno-economic Assessment of the Viability of Commercial Solar PV System in Port Harcourt, Rivers State, Nigeria

Muzan Williams Ijeoma, Hao Chen, Michael Carbajales-Dale, Rahimat Oyiza Yakubu

Subject: Engineering, Energy And Fuel Technology Keywords: PV design; solar energy; feasibility analysis; life cycle cost; levelized cost of electricity; net present value; simple payback time; internal rate of return; economic assessment; environmental assessment.

Online: 28 August 2023 (09:22:30 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0373.v1

Optimal Operation of Conventional Power Generation with High Penetration of Renewable Energy using Equilibrium Optimizer Technique

Khaled Nusair, Lina Alhmoud

Subject: Engineering, Electrical And Electronic Engineering Keywords: active power loss; total generation cost; emission index; optimal power flow; equilibrium optimizer; solar PV integrated IEEE 30-bus system; wind integrated IEEE 30-bus system; hybrid wind and solar PV integrated IEEE 30-bus system

Online: 17 September 2020 (05:15:42 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0002.v1

Green for the Environment and Green for the Pocketbook: A Decade of Living Sustainably

Lawrence Fulton, Bradley Beauvais, Matthew Brooks, Clemens Scott Kruse, Kimberly Lee

Subject: Engineering, Architecture, Building And Construction Keywords: construction; rainwater harvesting; solar; spray foam; finger-jointed studs

Online: 3 February 2020 (03:04:44 CET)

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Preprint ARTICLE | doi:10.20944/preprints202102.0451.v1

New Concept Note on Affordable Efficient Energy Utilization with Right Selection of Reliable Solar Converters for Household Loads

Richa Parmar, Dr. Chandan Banerjee, Mr. Ganesh Gowri

Subject: Engineering, Electrical And Electronic Engineering Keywords: DC-DC Converter, DC-AC Converter, Solar Photovoltaic, Efficiency, Cost Analysis.

Online: 22 February 2021 (09:05:38 CET)

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Preprint ARTICLE | doi:10.20944/preprints202203.0074.v1

Effectiveness of Measures to Reduce the Influence of Global Climate Change on Tomato Cultivation in Solariums. Case Study: CrișUrilor Plain, Bihor, Romania

Mihai Cărbunar, Olimpia Mintaș, Nicu Cornel Sabău, Ioana Borza, Alina Stanciu, Ana Pereș, Adelina Venig, Mircea Curilă, Mihaela Lavinia Cărbunar, Teodora Vidican, Cristian Oneț

Subject: Biology And Life Sciences, Agricultural Science And Agronomy Keywords: tomatoes; drip irrigation; mulching; solar pump; photovoltaic panel; economic indices; irrigation water indices

Online: 4 March 2022 (08:39:44 CET)

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Tomatoes, one of the most appreciated vegetables consumed, are crops well adapted for cultivation in arid and semi-arid conditions, the success of large yields is guaranteed by covering water consumption through irrigation. Solar Pumps - SP are driven by Photovoltaic Panels - PV (SPAPV), eliminating the dependence on electricity or diesel; they are environmentally friendly because they generate carbon-free electricity and the cost of operation and maintenance is lower. In order to preserve the water administered by drip to the tomato crop grown in solariums, mulching is used. In Husasău de Tinca, in the Crișurilor Plain, cultivation of tomato varieties without mulching (WM) and with mulching with black foil (MBF) were studied. To answer the question "How effective are water conservation measures in terms of energy independence?", two variants of SPAPVs, direct pumping (ADP) and storage tank (AST) were simulated. Considering the conditions in the solariums, tomato crops do not benefit from the contribution of precipitation, therefore it is proposed to determine the water consumption of tomatoes (ETRo), using the temperatures inside the solarium. In 2016, the average temperatures during the vegetation period were observed with an insurance of over 20 %, the irrigation norms were 6945.7 m3 ha-1, for the WM variant and 6594.0 m3 ha-1 for the MBF variant, respectively. Specific Investment (SI) is 214,795 Euro ha-1 in case of ADP and respectively 202,990 Euro ha-1 in case of ATS. The payback period (IPT) is between 2.68 years and 2.53 years for the ADP variant and between 1.63 years and 1.54 years for the ATS variant, respectively. The indications for water use and irrigation water use show that in the MBF variant the water administered by localized irrigation is better utilized than in the WM variant. In the conditions of Crișurilor Plain, the best solution for the distribution of water in solariums, with the help of SPAPVs is the mulching system of tomatoes grown in solariums (MBF) and the arrangement of the drip irrigation system with a water storage tank (ATS).

Preprint ARTICLE | doi:10.20944/preprints202102.0256.v1

Positive Effects of the Migration from Ka-Band Satellite to 4G Solution for the Communication Needs of a Scattered Set of 1 MW Solar Farms in Poland: A User’s Experience

Enrique Miguel Tébar Martínez, Witold Bąk, Luis Hurtado, Zbigniew Kulesza, Andrzej Napieralski

Subject: Engineering, Automotive Engineering Keywords: Solar photovoltaics in Poland; scattered generation; video-analytics; 4G migration; CCTV monitoring; Ka-band; lag time

Online: 10 February 2021 (12:42:30 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0166.v1

Effects of Natural Weathering on the Performance of High Solar Reflective Index Paint Surfaces Exposed in Harsh Climatic Conditions of United Arab Emirates

Tirumala Uday Kumar Nutakki, Waqar Ullah Kazim

Subject: Engineering, Automotive Engineering Keywords: Cool materials; cool coatings; solar reflective index; solar reflectance; thermal emittance; natural weathering; green buildings; reflective paints

Online: 7 June 2021 (11:13:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0158.v1

Thickness Optimization of Thin-Film Tandem Organic Solar Cell

Kamran Ali Bangash, Syed Asfandyar Ali Kazmi, Waqas Farooq, Saba Ayub, Muhammad Ali Musarat, Wesam Salah Alaloul, Muhammad Faisal Javed, Amir Mosavi

Subject: Computer Science And Mathematics, Computer Science Keywords: Organic Solar Cells; Triple Junction; Tandem, Energy Harvesting; Temperature.

Online: 6 April 2021 (09:21:56 CEST)

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Working Paper ARTICLE

Mechanics of the Gyroscopic Precession and Calculation of the Galactic Mass

Jian Sun, Ting Xu, Zheng Jiao, Hui Wang

Subject: Physical Sciences, Acoustics Keywords: gyroscopic precession; solar system; galactic mass

Online: 25 May 2021 (11:16:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202111.0160.v1

Numerical Modeling of High Conversion Efficiency Mo/CZTS/CdS/ZnO/ FTO Thin Film – Based Solar Cells

Samer H. Zyoud, Ahed H. Zyoud, Naser M. Ahmed, Anupama R. Prasad, Sohaib Naseem Khan, Atef AbdelKader, Moayed J Shahwan

Subject: Engineering, Energy And Fuel Technology Keywords: Absorber Layer; Buffer Layer; CZTS; CdSe; ZnSe; Conversion Efficiency; Carrier Concentration; Temperature; SCAPS-1D; Solar Cell

Online: 9 November 2021 (08:19:08 CET)

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This article describes in detail the numerical modeling of a CZTS (copper zinc tin sulfide) based kesterite solar cell. The Solar Cell Capacitance Simulator -one-dimension (SCAPS-1D) software was used to simulate MO/CZTS/CdS/ZnO/FTO structured solar cells. The parameters of different photovoltaic thin-film solar cells are estimated and analyzed using numerical modeling. The effects of various parameters on the performance of the photovoltaic cell and the conversion efficiency are discussed. Since the response of the solar cell is also contingent on its internal physical mechanism, J-V characteristic measures are insufficient to characterize the behavior of a device. Different features, as well as different potential conditions, must be considered for simulation, disregarding the belief in the modeling of a solar cell. With a conversion efficiency of 25.72%, a fill factor of 83.75%, a short-circuit current of 32.96436 mA/cm2 and an open-circuit voltage of 0.64V, promising optimized results have been achieved. The findings will be useful in determining the feasibility of fabricating high-efficiency CZTS-based photovoltaic cells. The efficiency of a CZTS-based experimental solar cell is also discussed. First, the effects of experimentally developed CZTS solar cells are simulated in the SCAPS-1D environment. The experimental results are then compared to the SCAPS-1D simulated results. The conversion efficiency of an optimized system increases after cell parameters are optimized. Using one-dimensional SCAPS-1D software, the effect of system parameters such as the thickness, acceptor and donor carrier concentration densities of absorber and electron transport layers, and the effect of temperature on the efficiency of CZTS-based photovoltaic cells is investigated. The proposed results will greatly assist engineers and researchers in determining the best method for optimizing solar cell efficiency, as well as in the development of efficient CZTS-based solar cells.

Preprint ARTICLE | doi:10.20944/preprints202104.0057.v1

Analysis of Arctic Spring Ozone Anomaly in the Phases of QBO and 11-year Solar Cycle for 1979–2011

Yousuke Yamashita, Hideharu Akiyoshi, Masaaki Takahashi

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: Arctic ozone; QBO; 11-year solar cycle; sudden stratospheric warming; chemistry-climate model

Online: 2 April 2021 (11:40:56 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202110.0055.v1

Modeling of Combined Lead Fast Reactor and Concentrating Solar Power Supercritical Carbon Dioxide Cycles to Demonstrate Feasibility, Efficiency Gains, and Cost Reductions

Brian White, Michael Wagner, Ty Neises, Cory Stansbury, Ben Lindley

Subject: Engineering, Energy And Fuel Technology Keywords: Supercritical carbon dioxide Brayton cycle; Concentrating Solar Power (CSP); Lead Fast Reactor (LFR), Cogeneration, Complimentary Cycle, Thermal Energy Storage (TES)

Online: 4 October 2021 (12:18:47 CEST)

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Solar power innately has issues with weather, grid demand and time of day, which for the case of concentrating solar power (CSP) can be mitigated through use of thermal energy storage. Nuclear reactors, including lead-cooled fast reactors (LFRs), can load follow, but have high fixed and low operating costs which can make this economically unattractive. We investigate potential synergies through coupling CSP and LFR together in a single supercritical CO$_2$ Brayton cycle and/or using the same thermal energy storage. Combining these cycles allows for the LFR to thermally charge the salt storage in the CSP cycle during low demand periods to be dispatched when grid demand increases. The LFR/CSP coupling into one cycle is modeled to find the preferred location of the LFR heat exchanger, CSP heat exchanger, sCO$_2$-to-salt heat exchanger (C2S), turbines, and recuperators within the supercritical CO$_2$ Brayton cycle. Three cycle configurations have been studied: two-cycle configuration, which uses CSP and LFR heat for dedicated turbocompressors, has the highest efficiencies but with less component synergies; a combined cycle with CSP and LFR heat sources in parallel is the simplest with the lowest efficiencies; and a combined cycle with separate high temperature recuperators for both the CSP and LFR is a compromise between efficiency and component synergies. Additionally, four thermal energy storage charging techniques are studied: the turbine positioned before C2S, requiring a high LFR outlet temperature for viability; the turbine after the C2S, reducing turbine inlet temperature and therefore power; the turbine parallel to the C2S producing moderate efficiency; and a dedicated circulator loop. While all configurations have pros and cons, use of a single cycle offers component synergies with limited efficiency penalty. Using a turbine in parallel with the C2S heat exchanger is feasible but results in a low charging efficiency, while a dedicated circulator loop offers flexibility and near perfect heat storage efficiency but increasing cost with additional cycle components.

Preprint ARTICLE | doi:10.20944/preprints202204.0187.v1

Gravity-Assist Might be a Solution to Save Earth from Global Warming

Sohrab Rahvar

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: Dynamics; Solar System; Global Warming

Online: 20 April 2022 (08:53:55 CEST)

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Preprint REVIEW | doi:10.20944/preprints202306.1540.v1

Creating Climate-Neutral Urban Environments: Integrating Solar Energy Technologies and Nature-Based Solutions for Sustainability and Resilience

Hai-Ying Liu, Nikolaos Skandalos, Liga Braslina, Vasileios Kapsalis, Dimitris Karamanis

Subject: Environmental And Earth Sciences, Sustainable Science And Technology Keywords: Built environment; Climate adaptation and mitigation; Carbon footprint; Eco-design; Nature-based solutions; Resilient living spaces; Solar energy technologies; Sustainable urban developments; Urban heat island; Urban planning

Online: 21 June 2023 (11:30:47 CEST)

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The need to address climate change and establish sustainable urban environments has driven increased efforts in Europe to develop climate-neutral cities. This study highlights the importance of integrating solar energy technologies and nature-based solutions as key strategies to achieve climate neutrality. By examining current practices, emerging trends, and case examples, it explores the benefits, challenges, and prospects associated with the integration of solar energy and nature-based solutions in urban contexts. The study presents a pioneering approach to assess the urban heat and climate change mitigation benefits of combining building-integrated photovoltaics and nature-based solutions specifically within the European context. The results emphasize the synergistic relationship between nature-based components and solar conversion technology, identifying effective combinations for different climatic zones. In warmer regions of Southern Europe, strategies like rooftop photovoltaics on cool roofs, photovoltaics shadings, green walls, and urban trees have demonstrated effectiveness. Conversely, mid- and high-latitude European cities have seen positive impacts through the integration of rooftop photovoltaics and photovoltaics facades with green roofs and green spaces. As solar cell conversion efficiency improves, the environmental impact of photovoltaics is expected to decrease, facilitating their integration into urban environments. The study emphasizes the importance of incorporating water bodies, cool pavements, spaces with high sky-view factors, and effective planning in urban design to maximize resilience benefits. It also highlights the significance of prioritizing mitigation actions in low-income regions and engaging citizens in the development of social photovoltaics positive energy houses, resilient neighbourhoods, and green spaces. By adopting these recommendations, European cities can lead the way in creating climate-neutral urban environments that prioritize clean energy, nature-based solutions, and the overall well-being of residents. The findings underscore the need for a multidisciplinary approach that combines technological innovation, urban planning strategies, and policy frameworks to effectively achieve climate neutrality in European cities.

Preprint ARTICLE | doi:10.20944/preprints202211.0095.v1

Solar System-Like Systems with Special Reference to Relativistic Quantum Mechanics and Weak Gravitational Field

Peter Gara

Subject: Physical Sciences, Quantum Science And Technology Keywords: Solar system-like systems; Relativistic Quantum Mechanics; Weak Gravity; Proper Time Scale of the Solar System

Online: 4 November 2022 (13:42:21 CET)

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Preprint ARTICLE | doi:10.20944/preprints202110.0112.v1

Application of Parallel ANN-PSO to Hourly Solar PV Estimation

Ming-Yuan Cho, Chien-Hsing Lee, Jyh-Ming Chang

Subject: Engineering, Electrical And Electronic Engineering Keywords: Artificial Neural Network(ANN); Particle Swarm; Particle Swarm Optimization(PSO); Parallel PSO-ANN; Optimization; Solar Electricity Estimation

Online: 7 October 2021 (10:29:25 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201910.0232.v1

Satellite Retrieval of Downwelling Shortwave Surface Flux and Diffuse Fraction under All Sky Conditions in the Framework of the LSA SAF Program (Part 1: Methodology)

Dominique Carrer, Xavier Ceamanos, Suman Moparthy, Chloe Vincent, Sandra C. Freitas, Isabel Trigo

Subject: Environmental And Earth Sciences, Geophysics And Geology Keywords: solar radiation; diffuse; LSA SAF; aerosols; MSG SEVIRI; open source code

Online: 20 October 2019 (02:24:07 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0593.v1

An Overview of PV Technology by Analyzing Various MPPT Algorithms, Suitable Converters, Stability & Their Cost Estimation.

RONAKBHAI ARVINDBHAI RANA, JISHNU DAS, GURU RAGHAVAENDRA, HEE-JE KIM

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar Photovoltaic (PV); MPPT; DC-DC Converter; DC-AC Converter; Stability of Photovoltaic system; Filter

Online: 26 November 2018 (11:51:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202106.0217.v1

Analysis of Heat Absorption and Collection Based on Solid Structures Collector

Yan Liu, Wenbin Liu, Qing Gao, Yong Huang, Peizhuo Li, Yongzhen Wang

Subject: Engineering, Automotive Engineering Keywords: solar collection; solid structure; heat absorption analysis; collection heat analysis; reflection spectrum

Online: 8 June 2021 (12:06:13 CEST)

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Working Paper ARTICLE

Baseline Levels of Vitamin D in a Healthy Population from a Region with High Solar Irradiation

Alicia García-Dorta, Lillian Medina-Vega, Jacobo Javier Villacampa-Jiménez, Marta Hernández-Díaz, Sagrario Bustabad-Reyes, Enrique González-Dávila, Federico Díaz-González

Subject: Medicine And Pharmacology, Dietetics And Nutrition Keywords: Vitamin D levels; population-based distribution; healthy adults; high solar irradiation.

Online: 8 April 2021 (12:17:33 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0231.v1

Solar UV Irradiance in a Changing Climate: Trends in Europe and the Significance of Spectral Monitoring in Italy

Ilias Fountoulakis, Henri Diémoz, Annamaria Siani, Gudrun Laschewski, Gianluca Filippa, Antti Arola, Alkiviadis F. Bais, Hugo De Backer, Kaisa Lakkala, Ann R. Webb, Veerle De Bock, Tomi Karppinen, Katerina Garane, John Kapsomenakis, Maria-Elissavet Koukouli, Christos S. Zerefos

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: solar uv radiation; Italy; Europe; ozone; aerosols; clouds; omi; dwd uv forecast

Online: 19 November 2019 (10:45:25 CET)

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Working Paper ARTICLE

Comparative Simulations of Conductive Nitrides as alternative Plasmonic Nanostructures for Solar Cells

Christin David, Lejo Joseph Koduvelikulathu, Radovan Kopecek

Subject: Physical Sciences, Optics And Photonics Keywords: theory and simulation; conductive transition metal nitrides; nanostructures; solar cells

Online: 21 May 2021 (09:51:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202104.0508.v1

Quantification of the Direct Solar Impact on Some Components of the Hydroclimatic System

Mares Constantin, Mares Ileana, Dobrica Venera, Demetrescu Crisan

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: time series; causality; entropy transfer; wavelet analysis; neural networks; climate response; solar impact

Online: 19 April 2021 (16:33:29 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0518.v1

A GIS-Based Method for Identification of Wide area Rooftop Suitability for Minimum Size PV Systems Using LiDAR Data and Photogrammetry

Diane Palmer, Elena Koubli, Ian Cole, Ralph Gottschalg, Thomas Betts

Subject: Engineering, Energy And Fuel Technology Keywords: solar; LiDAR; rooftop photovoltaics; building characteristics; wide-area solar yield

Online: 21 November 2018 (06:59:32 CET)

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Preprint REVIEW | doi:10.20944/preprints202109.0508.v2

How Fast Is the Distance between Earth and the Sun Changing in the Solar System?

Jim Henry, Mesut Yurukcu, George Nnanna

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: Solar System; Earth; Sun; Expansion; Universe

Online: 12 October 2021 (14:27:15 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202012.0259.v1

Nanofluids for Solar Thermal Collection and Energy Conversion

Mohammed Abdullah Hussain, Sumith Yesudasan, Sibi Chacko

Subject: Engineering, Automotive Engineering Keywords: Solar Flat Plate Collector; Efficiency; Nanofluid; Surfactant; Al2O3-Water; Ultrasonic agitation

Online: 10 December 2020 (12:58:10 CET)

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Preprint ARTICLE | doi:10.20944/preprints202009.0221.v1

Thermal Performance of Single-Storey Air-welled Terraced House in Malaysia: A Field Measurement Approach

Pau Chung Leng, Mohd Hamdan Ahmad, Dilshan Remaz Ossen, Gabriel Hoh Teck Ling, Eeydzah Aminudin, Weng Howe Chan

Subject: Engineering, Energy And Fuel Technology Keywords: air shaft; air well; solar chimney; field measurement; natural ventilation; tropical climate; terrace house; passive cooling design

Online: 10 September 2020 (04:46:23 CEST)

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The provision requirement of 10% openings of the total floor area stated in the Uniform Building by Law 1984 Malaysia has been practiced by designers for building plan submission approval. However, the effectiveness of thermal performance in landed residential buildings, despite the imposition by the by-law, has never been empirically measured and proven. Although terraced houses in Malaysia have dominated 40.9% of the total property transaction in 2019, such mass production with typical designs hardly provides its occupants with thermal comfort due to the static outdoor air condition and lack of external windows, where the conventional ventilation technique does not work well, even for houses with an air well system. Consequently, the occupants need to rely on mechanical cooling, which is a high energy-consuming component contributing to outdoor heat dissipation and therefore urban heat island effect. Thus, encouraging more effective natural ventilation to eliminate excessive heat from the indoor environment is critical. Since most of the research focuses on simulation modelling lacking sufficient empirical validation, this paper drawing on field measurement investigates natural ventilation performance in terraced housing with an air well system. More importantly, the key concern as to what extent the current air well system serving as a ventilator is effective to provide better thermal performance in the single storey terraced house is to be addressed. By adopting an existing single storey air welled terrace house, the existing indoor environmental conditions and thermal performance were monitored and measured using scientific equipment, namely HOBO U12 air temperature and air humidity, the HOBO U12 anemometer and the Delta Ohm HD32.3 Wet Bulb Globe Temperature meter for a six-month duration. The findings show that the air temperature of the air well ranged from 27.48°C to 30.92°C, while the mean relative humidity were from 72.67% to 79.25%. The mean air temperature for a test room (single sided ventilation room) ranged from 28.04°C to 30.92°C with a relative humidity of 70.16% to 76%. These empirical findings are of importance, offering novel policy insights and suggestions to potentially revising the existing building code standard and by laws; since the minimum provision of 10% openings has been revealed to be less effective to provide a desired thermal performance and comfort, mandatory compliance with, and the necessity for, the bylaw requirement should be revisited and further studied.

Preprint ARTICLE | doi:10.20944/preprints201907.0101.v1

Design and Analysis of Domestic Micro-Cogeneration Potential for an ORC System Adapted to a Solar Domestic Hot Water System

Daniel Leal-Chavez, Ricardo Beltran-Chacon, Paola Cardenas-Terrazas, Saul Islas, Nicolas Velazquez

Subject: Engineering, Energy And Fuel Technology Keywords: solar domestic cogeneration; Organic Rankine Cycle; acetone; evacuated tube solar collector

Online: 8 July 2019 (04:15:59 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202203.0181.v1

Net Zero Energy Housing: An Empirical Analysis from Measured Data

Leila Nikdel, Philip Agee, Georg Reichard, Andrew McCoy

Subject: Engineering, Energy And Fuel Technology Keywords: energy monitoring; net zero energy; human-building interaction; solar photovoltaics

Online: 14 March 2022 (09:49:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints201809.0089.v1

Forecast Horizon and Solar Variability Influences on the Performances of Multiscale Hybrid Forecast Model (MHFM)

Stéphanie Monjoly, Rudy Calif, Maina André, Ted Soubdhan

Subject: Engineering, Energy And Fuel Technology Keywords: hybrid forecast model; forecast horizon; daily global solar radiation clustering; fuzzy c-means; variability characterization

Online: 5 September 2018 (06:22:35 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202105.0488.v9

The Solar System: Nature and Mechanics

Mario Ljubičić

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: solar system; complete relativity; nature; mechanics

Online: 19 July 2023 (09:29:20 CEST)

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Preprint REVIEW | doi:10.20944/preprints202006.0110.v1

An Exploratory Data Analysis on Certified Perovskite Devices Efficiency and I-V Metrics: Insights into Materials Engineering and Process Scaling Up

Jialiu Ma, Da Guo

Subject: Chemistry And Materials Science, Materials Science And Technology Keywords: Perovskite; Solar cell; scale up; efficiency; certification; process

Online: 7 June 2020 (16:42:16 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202002.0055.v1

Building Mass Reconfiguration as an Energy-Sensitive Design Strategy for Green Campus Implementation

Nabila Afif, Agus Hariyadi, Nedyomukti Imam Syafii, Esti Setyaning Jati

Subject: Engineering, Architecture, Building And Construction Keywords: Green campus; Sunlight hour; Solar radiation; Building reconfiguration

Online: 5 February 2020 (10:27:13 CET)

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Preprint ARTICLE | doi:10.20944/preprints202202.0126.v1

Roach Infestation Optimization MPPT Algorithm for Solar Photovoltaic System

Chittaranjan Pradhan, Nicholas Kakra Ntiakoh, Rajnish Kaur Calay

Subject: Engineering, Electrical And Electronic Engineering Keywords: DC-DC Boost converter; Maximum power point tracking (MPPT); Partial shading condition (PSC); Particle swam optimization (PSO); Roach infestation optimization (RIO); Solar photovoltaic system

Online: 9 February 2022 (07:59:07 CET)

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Preprint ARTICLE | doi:10.20944/preprints202203.0232.v1

Polymer-Coated Daikon-Based Sunlight Absorbers for Highly Efficient Interface Solar Steam Generation

Ming Li, Zhenning Zhang, Fan Yang, Bo Wu, Jie Yi, Zhihui Yang, Yuming Wu, Weiming Wang, Shuai Peng, Jun Xiong, Xue Min

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Solar steam generation; Photothermal materials; Daikon; Polydopamine; Polypyrrole

Online: 16 March 2022 (10:16:34 CET)

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Preprint ARTICLE | doi:10.20944/preprints202107.0224.v1

Multilayers for Efficient Thermal Energy Conversion in High Vacuum Flat Solar Thermal Panels

Davide De Maio, Carmine D'Alessandro, Antonio Caldarelli, Daniela De Luca, Emiliano Di Gennaro, Maurizio Casalino, Mario Iodice, Mariano Gioffrè, Roberto Russo, Marilena Musto

Subject: Engineering, Energy And Fuel Technology Keywords: Selective Solar Absorber; refractive index; high vacuum flat panels; thermal conversion efficiency; radiative properties

Online: 9 July 2021 (13:35:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202402.1590.v1

Possible Interrelations of Space Weather and Seismic Activity: An Implication for Short-term Earthquake Prediction

Valery Sorokin, Victor Novikov

Subject: Environmental And Earth Sciences, Space And Planetary Science Keywords: solar flare; geomagnetic field variations; geomagnetically induced currents; electromagnetic earthquake triggering; aerosol emission; short-term earthquake prediction

Online: 28 February 2024 (09:39:18 CET)

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Working Paper ARTICLE

Our Peculiar Motion Inferred from Number Counts of Mid Infra Red AGNs and the Discordance Seen with the Cosmological Principle

Ashok K. Singal

Subject: Physical Sciences, Astronomy And Astrophysics Keywords: active galactic nuclei surveys; cosmic background radiation; large-scale structure of universe; solar system peculiar motion; cosmological principle

Online: 22 March 2021 (11:58:59 CET)

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According to the Cosmological Principle the Universe is isotropic and no preferred direction would be seen by an observer that might be stationary with respect to the expanding cosmic fluid. However, because of observer’s partaking in the solar system peculiar motion, there would appear in some of the observed properties of the Cosmos a dipole anisotropy, which could in turn be exploited to determine the peculiar motion of the solar system. The dipole anisotropy in the Cosmic Microwave Background Radiation (CMBR) has given a peculiar velocity vector 370 km s−1 along l=264∘,b=48∘. However, some other dipoles, for instance, from the number counts, sky brightness or redshift distributions in large samples of distant Active Galactic Nuclei (AGNs), have yielded values of the peculiar velocity many times larger than that from the CMBR, though surprisingly, in all cases the directions agreed with the CMBR dipole. Here we determine our peculiar motion from a sample of 0.28 million AGNs, selected from the Mid Infra Red Active Galactic Nuclei (MIRAGN) sample comprising more than a million sources. From this, we find a peculiar velocity, which is more than four times the CMBR value, although the direction seems to be within ∼2σ of the CMBR dipole. A genuine value of the solar peculiar velocity should be the same irrespective of the data or the technique employed to estimate it. Therefore, such discordant dipole amplitudes, might mean that the explanation for these dipoles, including that of the CMBR, might in fact be something else. But, the observed fact that the direction in all cases, is the same, though obtained from completely independent surveys using different instruments and techniques, by different sets of people employing different computing routines, might nonetheless indicate that these dipoles are not merely due to some systematics, otherwise why would they all be pointing along the same direction. It might instead suggest a preferred direction in the Universe, implying a genuine anisotropy, which would violate the Cosmological Principle, the core of the modern cosmology.

Preprint DATA DESCRIPTOR | doi:10.20944/preprints201811.0120.v2

SolarView: Georgia Solar Adoption in Context

Jacqueline Hettel Tidwell, Abraham Tidwell, Steffan Nelson, Marcus Hill

Subject: Engineering, Energy And Fuel Technology Keywords: solar; technology adoption; demographics; mixed methods

Online: 30 November 2018 (15:47:46 CET)

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Preprint ARTICLE | doi:10.20944/preprints202205.0203.v1

An Intelligent Artificial Approach Used for Water Solar Distillation in the Algerian Sahara Area

Omar Labbadlia, Mounir Zirari, Younes Chiba, Yacine Marif

Subject: Engineering, Mechanical Engineering Keywords: solar distillation; intelligent artificial approach; thermal analysis; water treatment

Online: 16 May 2022 (10:06:28 CEST)

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Preprint ESSAY | doi:10.20944/preprints202002.0298.v3

Father Verspieren and Mali Aqua Viva: Lessons Learned from Fighting Drought and Poverty with Photovoltaic Solar Energy in Africa

Mario Pagliaro

Subject: Engineering, Energy And Fuel Technology Keywords: photovoltaics; solar energy; Father Verspieren; solar energy in Africa; rainwater harvesting; solar pump

Online: 3 April 2020 (03:38:43 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201911.0352.v1

Emphasizing the Operational Role of a Novel Graphene-Based Ink into High Performance Ternary Organic Solar Cells

Minas M. Stylianakis, Dimitriοs M. Kosmidis, Katerina Anagnostou, Christos Polyzoidis, Miron Krassas, George Kenanakis, George Viskadouros, Nikolaos Kornilios, Konstantinos Petridis, Emmanuel Kymakis

Subject: Chemistry And Materials Science, Nanotechnology Keywords: ternary organic solar cells; graphene ink; functionalization; air-processed; cascade effect; charge transfer

Online: 28 November 2019 (03:54:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints202109.0313.v1

Economic Modelling for Self-consumption of Roof-Top Photovoltaic Systems in Spain

Álvaro Rodríguez-Martínez, Carlos Rodríguez-Monroy

Subject: Business, Economics And Management, Economics Keywords: sustainability; solar energy; photovoltaic energy; renewable energy; self-consumption; rooftop pv

Online: 17 September 2021 (12:29:01 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201809.0018.v1

Advanced Level Preparation of Expanded Graphite, Lauric Acid, Stearic Acid for Heat Transfer and Solar Applications

Anutsek Sharma, S Karthikeyan, Ratchagar Prabhu, Karthikeyan Jagannathan

Subject: Chemistry And Materials Science, Other Keywords: SSPCM, Vacuum Drying, Microwave Acid Treatment, Solar Applications

Online: 3 September 2018 (09:57:39 CEST)

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Preprint REVIEW | doi:10.20944/preprints202203.0217.v1

Strategic Investment in Open Hardware for National Security

Joshua M. Pearce

Subject: Engineering, Energy And Fuel Technology Keywords: energy policy; energy conservation; climate change; global safety; open hardware; open source; photovoltaic; renewable energy; solar energy; national security

Online: 15 March 2022 (14:27:35 CET)

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Preprint ARTICLE | doi:10.20944/preprints202012.0108.v1

Low-Carbon Economical Dispacth of Electricity-Heat Integrated Energy System Considering Concentrating Solar Power and Heat Loss in Heat Pipe Network

Nenghan Zhang, Yufeng Wang, Xiyan Jian, Yibo Ding

Subject: Engineering, Automotive Engineering Keywords: heat loss; integrated energy system; concentrating solar power; low-carbon; heat storage tank; economical dispatch

Online: 4 December 2020 (12:05:58 CET)

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Preprint ARTICLE | doi:10.20944/preprints201912.0407.v1

Re-desiging and Fabrication of the Contact Area of a Solar Milk Pasteurizer

Enebe Vincent, Moveh Samuel

Subject: Engineering, Industrial And Manufacturing Engineering Keywords: re-designing; fabrication; solar; milk; pasteurizer

Online: 31 December 2019 (10:22:43 CET)

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Preprint ARTICLE | doi:10.20944/preprints202011.0690.v1

Deployment of Solar Sails by Joule Effect: Thermal Analysis and Experimental Results

Gianluigi Bovesecchi, Sandra Corasaniti, Girolamo Costanza, Fabrizio Paolo Piferi, Maria Elisa Tata

Subject: Chemistry And Materials Science, Biomaterials Keywords: solar sail; aerospace; propulsion; mechanical systems; shape memory alloys; joule effect; thermal analysis.

Online: 27 November 2020 (13:10:37 CET)

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Working Paper ARTICLE

LED Light Improved by an Optical Filter to Visible Solar-Like Light With High Color Rendering

Li-Siang Shen, Hsing-Yu Wu, Li-Jen Hsiao, Chih-Hsuan Shih, Jin-Cherng Hsu

Subject: Physical Sciences, Acoustics Keywords: LED; solar-like light; optical coating; color rendering index; D65

Online: 1 June 2021 (09:46:55 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202112.0481.v1

Machine Learning Schemes for Anomaly Detection in Solar Power Plants

Mariam Ibrahim, Ahmad Alsheikh, Feras M. Awaysheh, Mohammad Dahman Alshehri

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: anomaly detection; machine learning; comparison analysis; renewable energy; Solar Power plants

Online: 30 December 2021 (11:51:18 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0293.v1

PhotonLabeler: An Inter-disciplinary Platform for Visual Interpretation and Labeling of ICESat-2 Geolocated Photon Data

Lonesome Malambo, Sorin C. Popescu

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: ICESat-2; photon-counting lidar; photon labeling; visualization; ATL03; ATL08; visual interpretation; solar-induced noise

Online: 13 August 2020 (08:08:40 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202107.0062.v1

Identification of the Planetary Magnetosphere Boundaries with the Wavelet Multi-Resolution Analysis

Mauricio Bolzan, Ezequiel Echer, Adriane Marques de Souza Franco, Rajkumar Hajra

Subject: Physical Sciences, Acoustics Keywords: planetary magnetosphere; planetary bow shocks; planetary magnetopauses; Haar wavelet; Solar wind; Wavelet analysis

Online: 2 July 2021 (14:21:41 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202306.0724.v1

Field Performance Monitoring of Energy-Generating High-Transparency Agrivoltaic Glass Windows

Mikhail Vasiliev, Victor Rosenberg, Jamie Lyford, David Goodfield

Subject: Physical Sciences, Applied Physics Keywords: building-integrated photovoltaics; solar windows; agrivoltaics; renewable energy

Online: 9 June 2023 (13:10:18 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202204.0229.v1

Thermodynamic Study of Solar Assisted Hybrid Cooling Systems With Consideration of Duration in Heat-Driven Processes

Zeyu Peng, Zeyu Li, Junquan Zeng, Jianting Yu

Subject: Engineering, Energy And Fuel Technology Keywords: Solar energy; Refrigeration; Absorption-compression; Energy saving; Thermodynamic model

Online: 26 April 2022 (06:03:27 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201912.0364.v1

Electrical Characterization of CIGS Thin Film Solar Cells by Two and Four-Wires Probe Technique

Amir Mosavi, Bertalan Beszedes, Imre Felde, Laszlo Nadai, Nima E Gorji

Subject: Physical Sciences, Optics And Photonics Keywords: CIGS solar cell; Cascade; current conduction; thin film; two and four-point probe

Online: 27 December 2019 (10:37:53 CET)

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Preprint ARTICLE | doi:10.20944/preprints202201.0123.v2

Genus-Physiognomy-Ecosystem Map with Solar Panels Produced at 10m-resolution First-time in a Country Scale through Machine Learning of Multi-temporal Satellite Images

Ram C. Sharma

Subject: Environmental And Earth Sciences, Remote Sensing Keywords: Sentinel-2; Land cover; Vegetation; Mapping; Plant communities; Machine learning; Genus-Physiognomy-Ecosystem; Gradient Boosting Decision Trees; Solar panel; Vegetation disturbance

Online: 4 April 2022 (10:40:26 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201811.0267.v1

Determination of the Optimal Size of Photovoltaic Systems by Using Multi-Criteria Decision Making Methods

Guido C. Guerrero-Liquet, Santiago Oviedo-Casado, J.M. Sánchez-Lozano, M. Socorro García-Cascales, Javier Prior, Antonio Urbina

Subject: Engineering, Energy And Fuel Technology Keywords: solar electricity; photovoltaic systems; distributed generation (DG); multi-criteria decision making (MCDM); analytic network process (ANP); technique for order of preference by similarity to ideal solution (TOPSIS)

Online: 12 November 2018 (05:18:40 CET)

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Preprint ARTICLE | doi:10.20944/preprints202307.0270.v2

An Improved Cheetah Optimizer for Accurate and Reliable Estimation of Unknown Parameters in Photovoltaic Cell/Module Models

Zulfiqar Ali Memon, Mohammad Amin Akbari, Mohsen Zare

Subject: Engineering, Electrical And Electronic Engineering Keywords: Solar energy; metaheuristics; optimization; energy management; solar cell; photovoltaic modeling

Online: 6 July 2023 (09:31:21 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202112.0430.v1

Agrivoltaics in Ontario Canada: Promise and Policy

Joshua M. Pearce

Subject: Engineering, Energy And Fuel Technology Keywords: agriculture; agrivoltaic; Greater Golden Horseshoe; Canada; energy policy; farming; Ontario; photovoltaic; solar energy

Online: 27 December 2021 (13:52:09 CET)

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Preprint ARTICLE | doi:10.20944/preprints202007.0695.v1

Performance Study of Integrated Solar-Water Supply System for Isolated Agricultural Areas in Thailand: Two Case-Study Villages of The Royal Initiative Project

Thanongsak Imjai, Kamon Thinsurat, Pakorn Ditthakit, Warit Wipulanusat, Monthian Setkit, Reyes Garcia

Subject: Environmental And Earth Sciences, Water Science And Technology Keywords: water resource management; solar-water; solar-water supply system; SWSS; decision support; solar pumping; climate change; royal initiative project

Online: 29 July 2020 (11:40:50 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0355.v1

Modeling of Energy and Exergy Efficiencies in High Vacuum Flat Plate Photovoltaic Thermal (PV-T) Collectors

Daniela De Luca, Antonio Caldarelli, Eliana Gaudino, Emiliano Di Gennaro, Marilena Musto, Roberto Russo

Subject: Engineering, Energy And Fuel Technology Keywords: solar energy; photovoltaic-thermal; electrical efficiency; thermal efficiency; exergetic efficiency; high-vacuum; evacuated flat plate

Online: 26 May 2022 (03:48:23 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0085.v1

Calorimetric Testing of Solar Thermal Absorbers for High Vacuum Flat Panels

Carmine D’Alessandro, Davide De Maio, Antonio Caldarelli, Marilena Musto, Francesco Di Giamberardino, Matteo Monti, Teresa Mundo, Emiliano Di Gennaro, Roberto Russo, Vittorio G. Palmieri

Subject: Physical Sciences, Applied Physics Keywords: Selective Solar Absorber; Solar Absorptance; Thermal Emittance; Evacuated Flat Panel; Calorimeter; High Vacuum Flat Panel; Solar Simulator

Online: 7 May 2022 (02:52:12 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0076.v1

Performance Improvement of PCDTBT: PC70BM Polymer Solar Cells with 1,8-diiodooctane Solvent Additive

Wenjuan Yu, Jiale Yang, Bingting Wang, Xiang Fu, Changhai Zhou, Haijun Zhou, Guoxiong Xie, Kexiu Dong, Gan Jin

Subject: Physical Sciences, Optics And Photonics Keywords: polymer solar cells; solvent additive; DIO; PCDTBT

Online: 6 May 2022 (11:44:55 CEST)

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Preprint BRIEF REPORT | doi:10.20944/preprints202006.0328.v1

Mapping of Solar Resource Based on INSAT 3D/3DR Surface Insolation Product

Arun S. Suryavanshi, Alok Taori, A. O. Varghese, Biswadip Gharai

Subject: Environmental And Earth Sciences, Environmental Science Keywords: INSAT 3D; INSAT 3DR; Surface insolation; Solar resource

Online: 28 June 2020 (09:19:10 CEST)

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Solar Insolation is the major contributor of earth’s radiation and energy budget. The insolation reaching the surface is a prime input for eco-physiological processes such as evapotranspiration and photosynthesis. Therefore, it is as critical component to assess bio-energy and bio-fuel resources. It is also a crucial input to crop simulation model for yield forecasting and its further applications in solar energy solutions. Although ground observations are better for accuracy purpose, they have challenges of maintenance, regular calibration and upkeeping etc. This call for the continuous spatio-temporal satellite based observations barring the acceptable accuracy. In case of INSAT3D/3DR, Bhattacharya et al. (2015) have derived the surface insolation product which is being used widely. We propose a method of improvement in this product. It is envisaged that a correction applied with the help of ground truth estimates may enhance the utilization of insolation products derived from INSAT3D/3DR datasets. In the present study, surface insolation product derived from INSAT 3D/3DR data at an interval of 30 minutes each (collectively 15 minutes interval) with 4 km spatial resolution was used for duration from May-2017 to Apr-2019 over Nagpur. Ground truth observations for same duration were carried out with CNR4, which were used to correct the INSAT 3D/3DR surface insolation product using the statistical best-fit method. Corrected INSAT 3D/3DR products are found correlating with the ground values well with differences of approximately < 1 W/m2. Best-fit parameters evolved in the present study uses only 2 years of simultaneous ground and satellite data which can be further improved by multi-year data base. We propose better utilization of INSAT 3D/3DR based surface insolation products in the assessment of solar resource mapping over Nagpur (and possibly other regions, such as Bhandara) with the help of best-fit parameters as assessed in the present study.

Preprint ARTICLE | doi:10.20944/preprints202305.0456.v1

Hybrid Off-Grid Energy Systems Optimal Sizing with Integrated Hydrogen Storage Based on Deterministic Balance Approach

Alaa Selim, Mohemed Elshimy, Ghada Amer, Ilham Ihoume, Hasan Masrur, Josep M. Guerrero

Subject: Engineering, Energy And Fuel Technology Keywords: Energy Systems; Hybrid; off-grid; Solar PV; Wind turbines; Hydrogen system; Sizing optimization; Deterministic approach

Online: 8 May 2023 (05:31:31 CEST)

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Integrating numerous renewable resources has been extensively researched and studied to create a dependable energy system. This study investigated the best techno-economical hybrid energy system configuration while using hydrogen energy to keep the system's energy balanced. Additionally, this study aims to determine the best hybrid system configuration for the location under investigation. A novel technique of DBM (Deterministic Balanced Method) was introduced to determine the total annual energy output for the project's lifetime. This approach is used to contrast the outcomes of other HOMER software tools. Then, using HOMER, it is possible to confirm the sizing optimization results for the suggested method by comparing the power ratings and yearly energy output. A detailed comparison between our proposed method and HOMER Pro has been conducted for validation and verification. Our method has been rigorously tested in various hybrid off-grid energy systems, ensuring its applicability and reliability across different scenarios and configurations. The results of our study indicate a high degree of similarity between the proposed approach and HOMER pro for computing annual energy power for the studied energy systems. Specifically, our analysis revealed that the difference between the approaches was within a range of 5%, indicating a high level of consistency and reliability in our method. These findings suggest that our approach can be confidently applied to determine the appropriate size of hybrid energy systems accurately. Overall, our study provides valuable insights into the development of effective sizing methodologies for hybrid energy systems. After considering the amount of solar radiation and wind speed gathered by global weather data platforms like NASA and METEONORM, this paper has also included a real case study of the Cairo International Airport's hybrid renewable energy production systems. To guarantee the viability of this study, the system design was founded on an actual load that was researched and simulated. A cluster of distributed networks was finally proposed to use the excess energy and enable energy conversion processes to be used in industry and transportation applications.

Preprint ARTICLE | doi:10.20944/preprints202007.0463.v1

Simulated Photovoltaic Solar Panels Alters the Seed Bank Survival of Desert Annual Plant Species

Rebecca R. Hernandez, Karen Tanner, Sophia Haji, Ingrid Parker, Bruce Pavlik, Kara A. Moore-O'Leary

Subject: Biology And Life Sciences, Ecology, Evolution, Behavior And Systematics Keywords: disturbance; drylands; photovoltaic; plant community; plant traits; rare species; renewable energy; seed traits; seed banks; solar energy

Online: 20 July 2020 (08:55:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202207.0192.v1

Film Properties Using Metal Salts Washing for Perovskite Solar Cells

Ankit Stephen Thomas

Subject: Chemistry And Materials Science, Surfaces, Coatings And Films Keywords: Perovskites; Solar cells; Film formation; Solar energy; Doping

Online: 13 July 2022 (08:40:00 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202111.0202.v1

Hybrid Machine Learning for Solar Radiation Prediction in Reduced Feature Spaces

Abdel-Rahman Hedar, Majid Almaraashi, Alaa E. Abdel-Hakim, Mahmoud Abdulrahim

Subject: Computer Science And Mathematics, Artificial Intelligence And Machine Learning Keywords: solar energy; solar radiation prediction; hybrid machine learning; feature selection; feature extraction; classification algorithms; regression analysis; weather research and forecasting (WRF)

Online: 10 November 2021 (10:48:15 CET)

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Preprint ARTICLE | doi:10.20944/preprints202008.0338.v1

Should A Good Organic Solar Cell Be A Good Organic LED?

Gregory Kozyreff, Blaise Godefroid

Subject: Physical Sciences, Applied Physics Keywords: organic solar cells; heterojunction; IQE; organic LED

Online: 15 August 2020 (05:21:17 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202305.1729.v1

Optimization of Electron and Hole Transport Layer to Model A Lead-Free Inorganic Cs₃Bi₂I₉Based Perovskite Solar Cell and Investigating the Effects of Different Attributes on Device Performance

Arnob Das, Sujan Banik, Barun K. Das, Nurul Islam

Subject: Engineering, Mechanical Engineering Keywords: Perovskite solar cell; Lead-free Cs3Bi2I9; HTL; ETL; Fill factor; PCE

Online: 25 May 2023 (03:47:38 CEST)

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Preprint ARTICLE | doi:10.20944/preprints201810.0437.v1

Optimal Routing for Time-Driven EH-WSN under Regular Energy Sources

Sebastià Galmés

Subject: Engineering, Electrical And Electronic Engineering Keywords: energy-harvesting wireless sensor network; solar radiation; energy consumption model; duty cycle; throughput; MAC layer; routing; minimum hop count; shortest-path routing

Online: 19 October 2018 (06:27:44 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202205.0389.v1

Performance Evaluation of Roughened Solar Air Heaters for Stretched Parameters

Mustafa Alaskari, Arwa M. Kadhim, Ammar Ali Farhan, Moustafa Adil Al-Damook, Mansour Al Qubeissi

Subject: Engineering, Energy And Fuel Technology Keywords: Absorber plate; Roughened surface; Solar Air Heater; Thermal analysis; V-ribbed duct

Online: 30 May 2022 (08:23:37 CEST)

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Preprint REVIEW | doi:10.20944/preprints202010.0438.v1

Nanostructures GaAs Solar Cells

Mohammad Nur E Alam, Narottam Das

Subject: Chemistry And Materials Science, Biomaterials Keywords: conversion efficiency; GaAs substrate; light absorption; nano-grating structures; reflection loss; simulation; solar cells

Online: 21 October 2020 (13:28:28 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202008.0511.v1

Some New Insights in to the Influence of Secular Changes in Sunspot Activity on Monsoon Rainfall Variability and Occurrences of Major Droughts in India during 650-2018 AD

Ambily S, Girish T.E, Haritha V.G, Sunilkumar Morais.C, Baburaj M.S

Subject: Environmental And Earth Sciences, Atmospheric Science And Meteorology Keywords: secular changes; sunspot cycles; Indian summer monsoon rainfall; droughts in India; medieval solar maximum; Maunder minima; El Nino

Online: 24 August 2020 (08:04:03 CEST)

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Preprint ARTICLE | doi:10.20944/preprints202009.0344.v1

Optimal Operation of Conventional Power Generation with High Penetration of Renewable Energy using Equilibrium Optimizer Technique

Lina Alhmoud, Khaled Nusair

Subject: Engineering, Electrical And Electronic Engineering Keywords: active power loss; total generation cost; emission index; optimal power flow; equilibrium optimizer; 21 solar PV integrated IEEE 30-bus system; wind integrated IEEE 30-bus system; hybrid wind and solar PV 22 integrated IEEE 30-bus system

Online: 16 September 2020 (03:50:46 CEST)

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