城市轨道交通车辆低温热泵技术应用试验

Application Test of Low-temperature Heat Pump Technology for Urban Rail Transit

介绍了城市轨道交通车辆低温热泵空调机组的研发与测试,通过对带经济器的准二级压缩热泵变容量控制系统进行对比测试与分析,证明该系统具有更好的低温适应性和相对较高的制热能耗比,为寒冷地区城市轨道车辆采暖提出更优的解决方案。

The research,development and test of low-temperature heat pump HVAC(heating,ventilation and air conditioning)unit for urban rail transit are introduced.Based on a comparative test and analysis of the variable capacity control system of pseudo-second level compression heat pump with economizer,it is proved that the system has better adaptability and higher COP(coefficient of performance),and therefore can provide a better solution for heating requirements of urban rail transit vehicles running in cold areas.