Version 1
: Received: 23 July 2019 / Approved: 24 July 2019 / Online: 24 July 2019 (04:10:31 CEST)
How to cite:
Karami, M.; Davoodabadi Farahani, S.; Kowsary, F.; Mosavi, A. Experimental Estimation of Temporal and Spatial Resolution of Coefficient of Heat Transfer in a Channel Using Inverse Heat Transfer Method. Preprints2019, 2019070264. https://doi.org/10.20944/preprints201907.0264.v1
Karami, M.; Davoodabadi Farahani, S.; Kowsary, F.; Mosavi, A. Experimental Estimation of Temporal and Spatial Resolution of Coefficient of Heat Transfer in a Channel Using Inverse Heat Transfer Method. Preprints 2019, 2019070264. https://doi.org/10.20944/preprints201907.0264.v1
Karami, M.; Davoodabadi Farahani, S.; Kowsary, F.; Mosavi, A. Experimental Estimation of Temporal and Spatial Resolution of Coefficient of Heat Transfer in a Channel Using Inverse Heat Transfer Method. Preprints2019, 2019070264. https://doi.org/10.20944/preprints201907.0264.v1
APA Style
Karami, M., Davoodabadi Farahani, S., Kowsary, F., & Mosavi, A. (2019). Experimental Estimation of Temporal and Spatial Resolution of Coefficient of Heat Transfer in a Channel Using Inverse Heat Transfer Method. Preprints. https://doi.org/10.20944/preprints201907.0264.v1
Chicago/Turabian Style
Karami, M., Farshad Kowsary and Amir Mosavi. 2019 "Experimental Estimation of Temporal and Spatial Resolution of Coefficient of Heat Transfer in a Channel Using Inverse Heat Transfer Method" Preprints. https://doi.org/10.20944/preprints201907.0264.v1
Abstract
In this research, a novel method to investigation the transient heat transfer coefficient in a channel is suggested experimentally, in which the water flow, itself, is considered both just liquid phase and liquid-vapor phase. The experiments were designed to predict the temporal and spatial resolution of Nusselt number. The inverse technique method is non-intrusive, in which time history of temperature is measured, using some thermocouples within the wall to provide input data for the inverse algorithm. The conjugate gradient method is used mostly as an inverse method. The temporal and spatial changes of heat flux, Nusselt number, vapor quality, convection number, and boiling number have all been estimated, showing that the estimated local Nusselt numbers of flow for without and with phase change are close to those predicted from the correlations of Churchill and Ozoe (1973) and Kandlikar (1990), respectively. This study suggests that the extended inverse technique can be successfully utilized to calculate the local time-dependent heat transfer coefficient of boiling flow.
Keywords
heat transfer; inverse method; boiling flow; local Nusselt number; time resolution
Subject
Physical Sciences, Thermodynamics
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
