TY - GEN
T1 - Effects of thermal mass on the cooling capacity and surface heat flux of radiant systems under direct solar radiation
AU - Shindo, Kan
AU - Shinoda, Jun
AU - Tanabe, Shin Ichi
N1 - Publisher Copyright:
© 2020 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020. All rights reserved.
Copyright:
Copyright 2021 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - This study aims to examine the effects of thermal mass on the cooling capacity and surface heat flux of radiant systems under solar radiation. The building model was based on ASHRAE Standard 140 and EnergyPlus was used to simulate a single zone building equipped with radiant floor cooling. A comparison was done for different chilled water supply temperatures (16 °C, 18 °C, and 20 °C) and water flow rates (10-50 L/min). It was confirmed that there is a time difference between solar heat gain and actual system cooling capacity. It indicates that until the total heat gain by the floor surface is completely removed by a radiant cooling system, the water flow rate has a significant impact on radiant cooling capacity enhancement under high-intensity solar radiation.
AB - This study aims to examine the effects of thermal mass on the cooling capacity and surface heat flux of radiant systems under solar radiation. The building model was based on ASHRAE Standard 140 and EnergyPlus was used to simulate a single zone building equipped with radiant floor cooling. A comparison was done for different chilled water supply temperatures (16 °C, 18 °C, and 20 °C) and water flow rates (10-50 L/min). It was confirmed that there is a time difference between solar heat gain and actual system cooling capacity. It indicates that until the total heat gain by the floor surface is completely removed by a radiant cooling system, the water flow rate has a significant impact on radiant cooling capacity enhancement under high-intensity solar radiation.
KW - Direct solar radiation
KW - Energy modelling
KW - Radiant cooling capacity
KW - Surface heat flux
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M3 - Conference contribution
AN - SCOPUS:85101617582
T3 - 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
BT - 16th Conference of the International Society of Indoor Air Quality and Climate
PB - International Society of Indoor Air Quality and Climate
T2 - 16th Conference of the International Society of Indoor Air Quality and Climate: Creative and Smart Solutions for Better Built Environments, Indoor Air 2020
Y2 - 1 November 2020
ER -