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采用相变材料的蓄能换向除霜方法可以解决空气源热泵换向除霜过程中因热量不足而导致的各种除霜问题。进行了空气源热泵采用正常除霜方法和蓄能除霜方法的对比实验,测量了除霜和恢复供热时的室内环境参数,计算了评价热舒适的PMV和PPD值,发现蓄能换向除霜方法由于缩短了除霜时间和提高了恢复供热时室内送风温度,使人体感到凉或冷的时间大幅缩短,有效地提高了室内热舒适性。
The use of phase change material storage reversing defrosting method can solve the air source heat pump reversing defrosting due to lack of heat caused by a variety of defrosting issues. The comparison experiments of normal defrosting method and energy storage defrosting method were carried out in air source heat pump. The indoor environmental parameters during defrosting and heating restoration were measured. The PMV and PPD values of thermal comfort were evaluated and the energy storage commutation The method of defrosting shortens defrosting time and increases indoor air supply temperature when heating is resumed, which greatly reduces the time when the human body feels cold or cold and effectively improves the indoor thermal comfort.