摘要
在为期1个月的广州某高校屋顶实验室现场测试的基础上,对围护结构内表面辐射率为0.05、0.25和0.8三种情况下的实验数据在热环境和辐射换热方面进行了分析。结果表明,直接受到太阳直射的外围护结构内表面温度变化趋势为:辐射率越低,内表面温度越高。内隔墙的表面辐射率越低,表面温度越低。内表面温度随着表辐射率的升高而降低。内表面辐射率越低,外围护结构内表面对室内的净辐射换热量越小。空调温度设置为30℃时,PMV与ε的关系呈抛物线形式,在ε=0.25时,PMV平均值<0.5。
The thermal environment and radiation heat transfer of the experimental data are analyzed under the conditions of 0.05,0.25 and 0.8 radiation rates on the inner surface of the envelope structure based on one-month field test in a roof Laboratory of a university in Guangzhou.The results show that the temperature of the inner surface of the envelope directly exposed to the sun tends to decrease with the decrease of the radiation rate and increase with the increase of the temperature of the inner surface.The lower the surface emissivity of the inner partition,the lower the surface temperature.The inner surface temperature decreases with the increase of surface emissivity.The lower the radiation rate of the inner surface,the smaller the net radiation heat transfer from the inner surface of the outer envelope to the indoor.When the air conditioning temperature is set to 30℃,the relationship between PMV andεis parabolic.Whenεis 0.25,the average PMV is less than 0.5.
作者
卢素梅
孟庆林
张磊
仲琨
邵丽丽
LU Su-mei;MENG Qing-lin;ZHANG Lei;ZHONG Kun;SHAO Li-li(School of Architecture,State Key Laboratory of Subtropical Building Science,South China University of Technology,Guangzhou 510640,China)
出处
《建筑节能》
CAS
2019年第9期98-104,共7页
BUILDING ENERGY EFFICIENCY
基金
广东省自然科学基金项目(2016A030313506)
“十三五”国家重点研发计划:南方地区大型综合体建筑绿色设计新方法与技术协同优化(2016YFC0700205)
