Open AccessA field study on the effect of cold radiation on human thermal comfort in winter
Author(s) -
Yunyan Xu,
Zhaojun Wang,
Xiaowen Su,
Wenjing Lü
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/609/4/042088
Subject(s) - thermal sensation , radiator (engine cooling) , thermal comfort , cold winter , cold climate , skin temperature , environmental science , thermal , envelope (radar) , operative temperature , building envelope , meteorology , aerospace engineering , engineering , geography , radar , biomedical engineering
A field survey of indoor thermal environment was conducted on four office buildings in Harbin. It aims to research the effect of cold radiation on human thermal comfort in winter. The results showed that the average indoor temperature of buildings with floor heating (FH) systems was as high as 27.53 °C, which was 3.2 °C higher than that of the buildings with radiator heating (RH) systems. And thus indoor environment was too warm in FH rooms which seriously affected occupants’ thermal comfort. In addition, FH building was less affected by cold radiation from the external windows and walls. However, people complained local thermal discomfort of legs and feet under the overheated environment. In RH buildings, among the votes of local thermal sensation, a large amount of subjects who were within 2m from external windows voted “cold” and complained “shoulder” and “back” were significantly suffered by the cold radiation from exterior envelope.