[工学]建筑节能 建筑环境与设备工程 英文论文.docVIP

Energy and Buildings 38 (2006) 1308–1319  /locate/enbuild  Indoor thermal environment and energy saving for urban residential buildings in China Hiroshi Yoshino a,*, Yasuko Yoshino b, Qingyuan Zhang c, Akashi Mochida d, Nianping Li e, Zhenhai Li f, Hiroyuki Miyasaka g a Graduate School of Engineering, Tohoku University, Japan b Junior College of Nihon University, Japan c Tsukuba College of Technology, Japan d Graduate School of Engineering, Tohoku University, Japan e Hunan University, China f Tonji University, China g Takenaka Corporation, Japan Abstract The purpose of this survey is to investigate the actual conditions of the residential indoor thermal environment in urban areas in China for evaluating thermal comfort and predicting the energy conservation feasibility for space heating and cooling. The apartment homes under investigation were located in the urban areas of nine major cities. The questionnaire survey revealed building characteristics, the types of space heating and cooling system in use, aspects of life style, during winter and summer seasons, and so on. The measurement showed that winter indoor temperatures in Harbin, Urumqi, Beijing and Xi’an remain at a relatively stable level near 20 8C due to the central heating system installed. However in the other cities lacking central heating systems, indoor temperatures fluctuated as a function of the change of outdoor temperature. On the other hand, summer indoor evening temperatures in Shanghai, Changsha, Chongqing and Hong Kong were higher than the comfort zone of ASHRAE. Therefore it is expected that energy use for space heating and cooling in the southern China will increase in the near future because of occupants’ requirement for comfortable indoor environment. Based on the results yielded by this study, in Beijing the calculation of space heating and cooling loads indicated that the energy used to heat indoor spaces can be halved by installing thermal insulation and properly sealing the b