Investigation on the heat transfer and water condensation performance of copper tube radiant cooling panels
YIN Ya-ling
PEI Ya-bing
GONG Yi
WU Xue-hong
Abstract：In order to improve the cooling capacity of radiant cooling plate and the performance of the plate sur-face condensation,different water temperature,tube velocity and indoor relative humidity conditions were used as experimental study variables with the method of visual research on the established radiant cooling condensa-tion system and the test platform of the change of thermal performance.The results showed that when the water flow rate increases from 40 L/h to 1 20 L/h,the cooling capacity increased nearly doubled and condensation time was reduced by 1 5 min;The indoor temperature and humidity was 26 ℃,75%,the first condensation time was 8 min;the cooling capacity of copper plate was stronger compared with PPR capillary tube radiation model;The state of dew condensation on the surface of the radiation plate was more disorganized with lower water temperature and amount of condensation.When the indoor temperature and humidity was 26 ℃,60%,the maxi-mum size of water drops the length was 9.6 mm,the width was 8.8 mm on the surface of the radiant panel.
Keywords：radiant coolingwater condensation perform-ancewater drop devel-opmenttemperature distributionheat and mass transfer
Publication Date：2016-10-31
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：9( 80-88 )