Comparative study on heat transfer performance between three main types capillary ceiling radiant cooling panel

2018 International Conference on Advanced Materials, Intelligent Manufacturing and Automation

材料科学;机械制造;运输工程

Xiao, Yuchen^1 ; Xu, Linghong^1 ; Ni, Peng^1 ; Hu, Pingfang^1

Department of Building Environment and Energy Engineering, Huazhong University of Science and Technology, Wuhan

430074, China^1

关键词: Ceiling radiant cooling panels;    Comparative studies;    Cooling capability;    Heat transfer performance;    Structural parameter;    Supply temperatures;    Surface temperatures;    Temperature uniformity;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/382/2/022073/pdf
DOI  :  10.1088/1757-899X/382/2/022073

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

This paper develop simulation models to analyses the effect of water supply parameters and structural parameters on radiant surface average temperature, radiant surface temperature range and temperature loss of three types capillary ceiling radiant cooling panel (CCRCP). In order to improve cooling capability of CCRCP, a lower water supply temperature should be applied. The best water supply velocity is around 0.11m/s. The suitable panel thermal conductivity is around 1 W/(m•K). Radiant surface should have higher emissivity. The G-type CCRCP have the best temperature uniformity, and the uniformity decreases in the order of G-type, U-type, S-type. Water supply temperature of U-type CCRCP can be lower when water supply velocity is slow, and water supply temperature of G-type CCRCP and S-type CCRCP can be lower when panel thermal conductivity is low.