不同朝向外墙传热阻变化对多空间太阳房室内操作温度的影响  

Influence of external wall thermal resistance changes in different orientations at indoor operating temperature of multi-space solar house

作　　者：崔晓玲[1] 桑国臣[1] 崔宏志[2] 王文康 朱轶韵[1] CUI Xiaoling;SANG Guochen;CUI Hongzhi;WANG Wenkang;ZHU Yiyun(School of Civil Engineering and Architecture,Xi’an University of Technology,Xi’an 710048,China;College of Civil and Transportation Engineering,Shenzhen University,Shenzhen 518060,China)

机构地区：[1]西安理工大学土木建筑工程学院,陕西西安710048 [2]深圳大学土木与交通工程学院,广州深圳518060

出　　处：《西安理工大学学报》2020年第1期25-32,共8页Journal of Xi'an University of Technology

基　　金：国家自然科学基金面上项目(51678482);陕西省重点产业创新链(群)资助项目(2020ZDLNY06-05)。

摘　　要：结合对拉萨地区太阳房的实地调研与室内温度测试,建立典型建筑模型和多空间直接受益式太阳房热平衡方程,分析不同朝向外墙传热阻变化对主次房间室内操作温度的影响规律。研究表明:增大南墙传热阻可使各房间室内操作温度略有提高,增大北墙传热阻对南向房间的温度提升作用不明显,但增大东、西墙传热阻可显著提高南向房间的操作温度;当东、西墙传热阻由0.53 m^2·K/W增大至2.33 m^2·K/W时,可使南向中间和两侧主要房间的操作温度分别由8.67℃、7.76℃升高至9.31℃、9.06℃,操作温度升高幅度分别是等量增加南、北墙传热阻时的145.5%、104.9%和371.4%、254.9%;此外,不同朝向外墙传热阻变化对主次房间操作温度差的影响存在明显差异,增大东、西墙和南墙传热阻会提高主次房间温度差,增大北墙传热阻则会降低主次房间温度差。Based on the field investigation and indoor temperature test of solar building in Lhasa area,the typical building models were built.The thermal balance equation of multi-space direct-gain passive solar house was established,with the influences of the heat transfer resistance change of the exterior walls in different orientations at the operating temperature of the primary and secondary room in a multi-space solar house analyzed.The results show that increasing the heat transfer resistance of the south wall,the operating temperature of each room increased only slightly.However,increasing the heat transfer resistance of the north wall by the same amount has no obvious effect on the indoor operating temperature of the main room located in the south direction.Moreover,the equivalent increase of the thermal resistance of east and west wall significantly improves the operating temperature of the main rooms in the south direction.When the thermal resistance of east and west wall is increased from 0.53 m 2·K/W to 2.33 m 2·K/W,the operating temperature of the southern primary rooms in the middle and both sides increases from 8.67℃and 7.76℃to 9.31℃and 9.06℃,respectively.The growth of operating temperatures of the primary rooms in the middle and both sides is 145.5%and 104.9%,371.4%and 254.9%of the equivalent increase of the south and north wall thermal resistance,respectively.In addition,the influence of different orientation wall thermal resistances on the temperature difference between the primary and secondary room is of difference.Increasing the thermal resistance of the eastern,western and southern wall can increase the temperature difference between the primary and secondary room,while increasing the thermal resistance of the north wall can decrease the temperature difference between the primary and secondary rooms.

关 键 词：直接受益式太阳房 多空间 墙体传热阻 操作温度 

分 类 号：TK512[动力工程及工程热物理—热能工程]