摘要
为掌握西北太阳能资源富集区中小学教室内温度分布特性,选取青海省某典型乡域中小学校教室为研究对象,对教室内从南至北水平面温度、沿垂直高度方向温度分布以及教室内外壁面温度、室外温度、太阳辐射等环境条件进行全面测试,掌握教室内、外热环境变化及分布特性。分析得到:上课期间教室内空气的垂直方向平均温差约为3.0℃;在0.25~1.10m范围内,温度梯度约为2.0℃/m;在1.10~2.30m处,温度梯度减小为0.8℃/m。南北水平向平均温差约为1.0℃。离南墙越近温度差异越明显,在1.5~2.7m,2.7~3.9m及3.9~5.1m范围内温度梯度分别为0.38℃/m,0.09℃/m及0.06℃/m。所得非均匀性温度变化特征可为该地区中小学教学建筑热工设计、采暖系统设置等提供依据。
In order to grasp the temperature distribution characteristics of primary and secondary school classrooms in solar energy enrichment area in northwest,a typical rural classroom in Qinghai province was selected as the research object. The temperature distribution from the south to the north,along the vertical height,and the temperature of the inner and outer walls of the classroom were also measured. The vertical direction of the air temperature in the classroom during the class was analyzed. The average temperature difference is about 3.0 ℃. Within the range of 0.25 m to 1.10 m in vertical direction,the temperature gradient was approximately 2.0 ℃·m -1 ,whereas the temperature gradient was reduced to 0.8 ℃·m -1 at 1.10 to 2.30m. And the average temperature difference between the north and south is about 1.0 ℃. The closer to the south wall,the greater the temperature difference in horizontal direction. From 1.5 m to 2.7 m,2.7 m to 3.9 m,and 3.9m to 5.1m,the temperature gradients were 0.38,0.09 and 0.06 ℃·m -1 ,respectively. The changes and distribution characteristics of the thermal environment inside and outside the classroom were obtained. The characteristics of non-uniform temperature variation in the classrooms of primary and secondary schools can provide a basis for the thermal design of school buildings and the setting of heating systems in the region.
作者
蒋婧
王登甲
刘艳峰
狄育慧
JIANG Jing;WANG Dengjia;LIU Yanfeng;DI Yuhui(School of Urban Planning and Municipal Engineering,Xi′an Polytechnic University,Xi′an 710048,China;School of Building Services Science and Engineering,Xi′an University of Architecture and Technology, Xi′an 710055,China)
出处
《西安工程大学学报》
CAS
2019年第5期494-498,共5页
Journal of Xi’an Polytechnic University
基金
国家自然科学基金青年项目(51908438)
陕西省教育厅专项科研计划项目(19JK0367)
西安工程大学博士科研启动基金(107020419)
陕西省青年科技新星项目(2017KJXX-22)
关键词
非均匀温度分布
中小学教室
太阳辐射
室温特征
西北地区
non-uniform temperature distribution
primary and secondary schools′ classroom
solar radiation
room temperature characteristics
northwest
