严寒地区农宅附加太阳房采暖能耗及节能分析

Analysison Heating Consumption and Energy Saving of Rural Residence with Solar House in Severe Cold Area

以严寒气候某地区的一处代表性农村住宅为例,探讨了农村住宅附加太阳房的采暖能耗及其节能潜力。基于EnergyPlus研究了附加太阳房前后农村住宅采暖设计温度为14℃、16℃、18℃和20℃时,在最冷日、最冷月以及采暖期的采暖能耗和节能效果。研究结果表明:严寒地区农村住宅附加太阳房后室内温度升高、昼夜温度波动较小,室内热舒适性增加,而且有效降低建筑采暖能耗,其节能率达22.73%;农村住宅采暖设计温度越高,其建筑采暖能耗越大且呈1.4~2.7倍增长;采暖设计温度18℃时,农村住宅附加太阳房节能效率最高。

We take an representative rural residence in the severe cold area as an example, discuing the heating consumption and energy-saving potential of rural residence with solar house. Based on software EnergyPlus, simulation is studied on the hourly, daily, monthly, total heating consumption and energy-saving effect of the rural residence before and after attached solar house under interior heating design temperature of 14℃, 16℃, 18℃ and 20℃. The results show that with the rural residence attached solar house in severe cold area,as the indoor temperature increases, the temperature fluctuation between day and night decreases, the thermal comfort improves. It can effectively reduce the heating consumption,and the total energy-saving rate is up to 22.73%. The heating consumption rised 1.4 to 2.7 times when the rural residential heating design temperature is higher. When heating design temperature is under 18℃,the energy-saving rate reaches the peak.