空气源热泵蓄能换向除霜对室内热舒适的影响
Indoor thermal comfort during thermal energy storage reverse-cycle defrosting of air-source heat pumps
摘要：
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。
Abstract：
To solve the problems caused by insufficient heat during reverse-cycle defrosting, develops a novel thermal energy storage reverse-cycle defrosting method with phase change material. Conducts contrast experiment of normal defrosting method and thermal energy storage defrosting method, measures indoor environment parameters during defrosting and resuming heating, and calculates the PMV and PPD value for evaluating indoor thermal comfort. The results indicate that the use of the thermal energy storage reverse-cycle defrosting method can effectively improve indoor thermal comfort, due to a shorter defrosting time and a higher indoor air supply temperature when resuming heating, which shortens the time when people indoor feeling cool or cold.
Keywords:air-source heat pump, thermal energy storage reverse-cycle defrosting, thermal comfort, defrosting time, indoor environment parameter, PMV, PPD