辽西地区农村典型性住宅热环境研究

Study on thermal environment of typical rural houses in western Liaoning Province

为了解干热气候下的辽西地区农村住宅夏季热环境的变化规律,选取了阜蒙县旧庙镇海力版村的两栋农村典型性住宅——平顶房与尖顶房来进行现场热环境的实测,对比分析平顶房与尖顶房室内外热环境的差异及其原因。研究结果表明:相较而言,在测量时间段内,尖顶房内部湿度变化幅度没有平顶房的大,较平缓;平顶房内部温度变化平缓,增幅不大,且内环境温度与外环境温度基本一致,也就是说墙体隔温效果差。就分析所得,尖顶房内环境温度低于平顶房内环境温度。尖顶房东西屋温度在测量时段内存在明显起伏波动,而平顶房东西屋温度变化仅先下降后上升两个阶段。在测量时段内,尖顶房内环境湿度高于平顶房内环境湿度。由于太阳辐射,外墙体温度变化多,幅度大,内墙体温度变化少,幅度较小。在同是砖混结构的条件下,尖顶房的散热能力明显高于平顶房的散热能力。

In order to understand the change rule of summer thermal environment of rural houses in western Liaoning under dry-hot climate,two typical rural houses,flat-roofed houses and spired houses,in Liban Village,Jiumiao Town,Fumeng County were selected for field thermal environment measurement,and the differences and reasons of indoor and outdoor thermal environment between flat-roofed houses and spired houses were compared and analyzed.The results show that:comparatively speaking,during the measurement period,the humidity variation in the spire room is not as large as that in the flat roof room,but rather gentle;the temperature inside the flat roof changes gently,with little increase,and the internal temperature is basically the same as the external temperature,which means that the wall insulation effect is poor.According to the analysis,the ambient temperature in the spire room is lower than that in the flat roof room.During the measurement period,there are obvious fluctuations in the temperature in the east-west room of the spire room,while the temperature change in the east-west room of the flat roof room only falls first and then rises in two stages.During the measurement period,the ambient humidity in the spire room is higher than that in the flat roof room.Due to the solar radiation,the temperature of the outer wall changes a lot with a large range,while the temperature of the inner wall changes little with a small range.Under the condition of the same brick-concrete structure,the heat dissipation capacity of the spire house is obviously higher than that of the flat roof house.