Infrared-transparent bubble wrap assisted high-intensity radiant cooling  

作　　者：Xudong Wei Huijun Wu Ke Du Jiaan Gu Gongsheng Huang Xinhua Xu 

机构地区：[1]School of Civil Engineering and Transportation,Guangzhou University,Guangzhou,510006,China [2]Department of Architecture and Civil Engineering,City University of Hong Kong,Hong Kong,China [3]Department of Building Environment&Energy Engineering,Huazhong University of Science&Technology,Wuhan,430074,China

出　　处：《Building Simulation》2025年第1期47-63,共17页建筑模拟(英文)

基　　金：sponsored by the National Natural Science Foundation of China(No.5231101074)and(No.52378092).

摘　　要：Covering the radiant cooling surface with infrared-transparent membrane effectively improves the condensation resistance and cooling capacity of radiant cooling.However,the air layer structure formed by the infrared-transparent and double-layer hollow membranes is easy to destroy,resulting in condensation problems.Inspired by the hollow structure of natural bamboo,an infrared-transparent bubble wrap assisted radiant cooling panel(BWRCP)aiming at improving the strength and cooling capacity was proposed by using the infrared-transparent bubble wrap consisting of infrared-transparent membrane and air-filled pores to layer the radiant cooling panel.Both experimental investigation and numerical calculation of the cooling capacity of the infrared-transparent bubble wrap assisted radiant cooling system were carried out.Experimental results showed that the cooling capacity of BWRCP at condensation-free condition was 93.54 W/m^(2),which was 33%higher than traditional radiant cooling without covering infrared-transparent bubble wrap.Numerical results showed that the air-contact surface temperature of the infrared-transparent bubble wrap was higher than the dew point temperature.It provides condensation-free operation in the thermal environment of 26℃and 45%–80%RH.Therefore,compared with traditional radiant cooling,BWRCP significantly improves the cooling capacity at condensation-free condition.It demonstrated a novel structure design and operation guidance for the high-performance radiant cooling technology.

关 键 词：infrared-transparent bubble wrap radiant cooling CONDENSATION cooling capacity 

分 类 号：TK124[动力工程及工程热物理—工程热物理]