新型空气-水双热源复合热泵系统性能和除霜实验
发布时间：2018-12-31 21:59
【摘要】：针对低温环境条件下热泵逆循环除霜存在的诸多问题,提出了一套具备预热除霜功能的新型空气-水双热源复合热泵系统(new air-water double source composite heat pump system,AWDSHPS-N),通过阀门切换和低温水源侧水泵的启停控制可直接进入除霜模式,除霜过程中可保证制热的连续性,每次除霜时长不超过5 min。利用恒温恒湿环境仓模拟室外环境条件,可调控水温的低温水箱模拟太阳能等低温热源搭建AWDSHPS-N实验台,对不同测试工况下,单空气源制热模式(air source heating mode,ASHM)、单水源制热模式(water source heating mode,WSHM)、空气-水双热源制热模式(air-water source heating mode,AWSHM)3种制热模式将水从18℃加热至51℃的系统性能系数(coefficient of performance,COP)进行了实验,结果表明:AWSHM的COP比ASHM提高了6.1%~20.5%;当环境温度和低温水源温度均高于15℃时,系统COP高低顺序为AWSHM、ASHM和WSHM。
[Abstract]:Aiming at the problems of defrosting in reverse cycle of heat pump under low temperature environment, a new air / water dual heat source heat pump system (new air-water double source composite heat pump system,AWDSHPS-N) with preheating defrosting function is proposed. The defrosting mode can be directly entered by valve switch and the starting and stopping control of the low temperature water source side pump. The continuous heating can be ensured during defrosting process, and the defrosting time per time is not more than 5 min.. Using the constant temperature and humidity environment warehouse to simulate the outdoor environment condition, the low temperature water tank with adjustable water temperature is used to simulate the solar energy and other low temperature heat sources to build the AWDSHPS-N experimental bench. The single air source heating mode (air source heating mode,ASHM under different test conditions is built. The system performance coefficient (coefficient of performance,COP) of water was heated from 18 鈩，
本文编号：2397164
[Abstract]:Aiming at the problems of defrosting in reverse cycle of heat pump under low temperature environment, a new air / water dual heat source heat pump system (new air-water double source composite heat pump system,AWDSHPS-N) with preheating defrosting function is proposed. The defrosting mode can be directly entered by valve switch and the starting and stopping control of the low temperature water source side pump. The continuous heating can be ensured during defrosting process, and the defrosting time per time is not more than 5 min.. Using the constant temperature and humidity environment warehouse to simulate the outdoor environment condition, the low temperature water tank with adjustable water temperature is used to simulate the solar energy and other low temperature heat sources to build the AWDSHPS-N experimental bench. The single air source heating mode (air source heating mode,ASHM under different test conditions is built. The system performance coefficient (coefficient of performance,COP) of water was heated from 18 鈩，
本文编号：2397164
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