Abstract:

Through investigation of small towns in Chongqing,this study obtained the housing existing building enclosure types and thermal environment situation from Jan.to Sep.,2010,and used Chongqing area natural ventilation housing compatible model to evaluate indoor heat environment.Finally,this study found that the indoor lowest temperature was 83℃ in winter and the maximum relative humidity was 962%,while the indoor highest temperature was 344℃ in summer and the maximum relative humidity was 99%.In the natural ventilation conditions，only 2 days achieved the indoor comfort temperature in winter,while 58 days in summer.So it is more important to promote the heat preservation performance of dwellinghouse in winter than that in summer