The thermal mechanism of two outdoor periodic waves in Yaodong external envelope
In northwest of China, the annual and diurnal temperature range are very big. The local Yaodong dwelling adapts suchclimate, and has the character of warm in winter and cool in summer. The objective of this paper is to study the thermo stability ofexternal envelope. The air temperature and solar radiation in winter and in summer are selected from typical meteorological data inhourly. After verifying the harmonic response method by tested data, the amplitudes of air temperature and of solar radiationequivalent temperature in the roof, east, south, west, and north external wall are calculated by this method. The results show that, inwinter, the thickness affected by solar radiation equivalent temperature is bigger than that by air temperature in the roof, south, east,and west external wall, while in summer, the thickness affected by solar radiation equivalent temperature is bigger than that affectedby air temperature just in the roof. Both in winter and in summer, the thickness affected by solar radiation equivalent temperature isless than that affected by air temperature in the north external wall. This paper indicates the external envelope mainly affected bysolar radiation equivalent temperature in winter and in summer, which’s helpful to make different thermal insulation measuresaccording to different external envelope.
harmonic response method air temperature SRET thermo stability Yaodong
LIU Yan-Feng WANG Li-Juan LIU Jia-Ping
College of Environment andMunicipal Engineering, Xi’an University of Architecture and Technology College of Architecture, Xi’an University of Architecture and Technology
国内会议
长沙
英文
674-681
2012-11-16（万方平台首次上网日期，不代表论文的发表时间）