Version 1
: Received: 6 August 2016 / Approved: 6 August 2016 / Online: 6 August 2016 (11:31:10 CEST)
How to cite:
Seong, M.; Lim, C.; Kim, D.; Kim, S.; Park, J. A Study on the Status and Thermal Environment Improvement of Ceiling-Embedded Indoor Cooling and Heating Unit. Preprints2016, 2016080067. https://doi.org/10.20944/preprints201608.0067.v1
Seong, M.; Lim, C.; Kim, D.; Kim, S.; Park, J. A Study on the Status and Thermal Environment Improvement of Ceiling-Embedded Indoor Cooling and Heating Unit. Preprints 2016, 2016080067. https://doi.org/10.20944/preprints201608.0067.v1
Seong, M.; Lim, C.; Kim, D.; Kim, S.; Park, J. A Study on the Status and Thermal Environment Improvement of Ceiling-Embedded Indoor Cooling and Heating Unit. Preprints2016, 2016080067. https://doi.org/10.20944/preprints201608.0067.v1
APA Style
Seong, M., Lim, C., Kim, D., Kim, S., & Park, J. (2016). A Study on the Status and Thermal Environment Improvement of Ceiling-Embedded Indoor Cooling and Heating Unit. Preprints. https://doi.org/10.20944/preprints201608.0067.v1
Chicago/Turabian Style
Seong, M., Sangkyun Kim and Jaewna Park. 2016 "A Study on the Status and Thermal Environment Improvement of Ceiling-Embedded Indoor Cooling and Heating Unit" Preprints. https://doi.org/10.20944/preprints201608.0067.v1
Abstract
In this study, a basic study was performed to analyze the seasonal temperature status of a research room in the Global Environment Research Building where ceiling-embedded indoor units are installed to study the room temperature status of the building as well as to improve its thermal environment. In addition, a direction for improvement of the indoor thermal environment in the winter was proposed through a CFD (computational fluid dynamics) simulation and was proven by an additional experiment. Through the results of this study, it appeared that if the ceiling-embedded indoor unit was installed in the small indoor space without considering the thermal vulnerability of its perimeter boundary, the air temperature of the upper part was greatly different from that of the bottom part in the winter. Hence, in this study, as a means to improve it, convectors were installed to minimize the effect of the external thermal environment and angle-controllable air flowing fans were installed to mitigate the stratification distribution. With such result, it was intended to present the essential data for improvement of the thermal environment as well as conservation of heating energy in the winter for buildings by reviewing the use of the ceiling-embedded indoor unit in the future.
Keywords
indoor unit; temperature stratification; PMV; heating; CFD
Subject
Engineering, Architecture, Building and Construction
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.
