高校宿舍楼夜间蓄热通风性能实验研究

Experimental research on the regenerative night ventilation performance of university dormitory

对某高校宿舍楼的室内热环境进行实验研究,根据相变材料的最佳温度区间选择质量比为65:35的混合石蜡作为本实验的相变材料.通过对室内外温度及壁面温度进行分析,得出以下结论:采用蓄热通风技术的房间室内最高温度比无任何措施的房间低0.65℃,平均温度低0.6℃,室内温度低于26℃的时间比例明显大于未采用任何技术的房间;随着室内相变材料的增加,室内最高温度逐渐下降,温度变化幅度逐渐缩小;采用蓄热通风技术的房间,相变材料表面温度大大低于室内壁面温度,相变材料对周围环境进行冷辐射;夜间通风及蓄热技术的应用可以有效降低室内温度,减少室内温度波动,改善夏季室内热环境.

Research on the thermal environment of a university dormitory through was carried out.According to the best temperature extent of the phase change materials,the text selected mixture of paraffin that its mass ratio was 65：35 for the phase change materials.Through analysis of indoor or outdoor temperature and wall temperature,it concluded that the highest temperature in the room with regenerative and ventilation technology is 0.65 lower than ℃ that without.The average value of temperature was 0.6 ℃,the ratio of time that indoor temperature was lower than 26 ℃ which was obviously greater than without.With the increase of the indoor phase change materials,the indoor highest temperature decreased gradually.In the room where used regenerative and ventilation technology is used,the surface temperature of the phase change materials was obviously lower than the indoor wall temperature,and the phase change materials made cold-radiation around environment.Applicability of regenerative and night ventilation technology helps bring down the indoor temperature effectively,reduce the wave of the indoor temperature,and improve the indoor thermal environment in summer.It has positive effect on the indoor thermal environment in dormitory.