TY - GEN
T1 - Heat load and indoor environment under the combined use of radiant cooling system and active chilled beam
AU - Furukawa, Ryoya
AU - Shinoda, Jun
AU - Imazu, Misa
AU - Tsushima, Sayana
AU - Tanabe, Shin Ichi
AU - Iwata, Hiroki
N1 - Funding Information:
This research was supported by the New Energy and Industrial Technology Development Organization. The authors would like to express their sincere gratitude for the cooperation of all persons involved in this research.
Publisher Copyright:
© 2018 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018. All rights reserved.
PY - 2018
Y1 - 2018
N2 - Recent studies have shown that the heat load characteristics under radiant cooling are different compared with those under convection systems. Therefore, heat load calculation methods that simplify radiant heat transfer may not be suitable to radiant systems. In this study, an indoor environment was observed under a 24-h radiant cooling condition in order to examine the heat transfer of each surface. Each surface temperature was compared under only radiant cooling, radiant cooling and active chilled beam combination, and only active chilled beam conditions. The results showed that the use of the overall heat transfer coefficient was not appropriate for calculation under radiant cooling conditions during daytime. By using the results obtained from the experiment, calculations were carried out by the heat balance method and the obtained results were compared to those calculated by the equivalent temperature difference method. Thereby, it was determined that the heat balance method was more accurate.
AB - Recent studies have shown that the heat load characteristics under radiant cooling are different compared with those under convection systems. Therefore, heat load calculation methods that simplify radiant heat transfer may not be suitable to radiant systems. In this study, an indoor environment was observed under a 24-h radiant cooling condition in order to examine the heat transfer of each surface. Each surface temperature was compared under only radiant cooling, radiant cooling and active chilled beam combination, and only active chilled beam conditions. The results showed that the use of the overall heat transfer coefficient was not appropriate for calculation under radiant cooling conditions during daytime. By using the results obtained from the experiment, calculations were carried out by the heat balance method and the obtained results were compared to those calculated by the equivalent temperature difference method. Thereby, it was determined that the heat balance method was more accurate.
KW - Heat balance
KW - Heat flux
KW - Heat load calculation
KW - Radiant cooling
KW - Radiant panel
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M3 - Conference contribution
AN - SCOPUS:85105651782
T3 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
BT - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
PB - International Society of Indoor Air Quality and Climate
T2 - 15th Conference of the International Society of Indoor Air Quality and Climate, INDOOR AIR 2018
Y2 - 22 July 2018 through 27 July 2018
ER -