The thermal mechanism of warm in winter and cool in summer in China traditional vernacular dwellings |
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| Authors: | Jiaping Liu Lijuan Wang Yasuko Yoshino Yanfeng Liu |
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| Affiliation: | 1. College of Architecture, Xi’an University of Architecture and Technology, Xi’an 710055, China;2. College of Environment and Municipal Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China;3. Dept. of Construction, Nihon University Junior College, Japan |
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| Abstract: | Yaodong is one representative of western China vernacular dwellings. Its indoor thermal environment is cool in summer and warm in winter. This study interprets the characteristic of warm in winter and cool in summer in such a dwelling by measuring the indoor, outdoor and wall’s temperatures in winter and summer. The human thermal comfort theory is used to evaluate thermal environment, and the periodic heat transfer mechanism is used to analyze the thermal transfer through the wall. The results show that the Yaodong thick wall effectively damping external temperature wave and keeping steady inner surface temperature are the chief causes of warm in winter and cool in summer in Yaodong, which lays a scientific basis for low energy building design. |
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| Keywords: | Yaodong MRT Damping Operative temperature |
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