空气-水双热源热泵防结霜性能及能效分析  

Analysis of energy utilization and anti-frost performance of air-water dual heat source heat pumps

作　　者：李金华 龙激波[1] LI Jinhua;LONG Jibo(College of Civil Engineering,Xiangtan University,Xiangtan 411105,China)

机构地区：[1]湘潭大学土木工程学院,湖南湘潭411105

出　　处：《湘潭大学学报(自然科学版)》2025年第2期145-153,共9页Journal of Xiangtan University(Natural Science Edition)

基　　金：湖南省自然科学基金(2023JJ30586)。

摘　　要：空气源热泵低温环境表面结霜问题是影响其换热性能和能效比(COP)的重要因素.该文提出了一种以空气和水为热源的双热源热泵蒸发装置(AWSHP),从实验和模拟两个方面对该装置的防结霜性能和双热源热泵蒸发器总效率展开研究,分析给出了热泵工作参数变化下提高蒸发器能源利用率及防结霜的方法.结果表明,AWSHP的换热量和COP分别为9.132 kW和3.81,较空气源热泵分别提高了14.08%和11.81%.对AWSHP影响因素的拟合方程进行模拟分析,AWSHP制冷剂蒸发温度和能源利用率在喷水温度为定值时呈正相关,且增加空气流速、喷水距离和温度均增加制冷剂的蒸发温度,但提高喷水温度降低了空气-水双热源热泵蒸发器总效率.The problem of frost on the surface of air source heat pumps in low-temperature environments is an important factor affecting their heat transfer performance and COP.In this paper,a dual heat source heat pump evaporator(AWSHP)with air and water as the heat source is proposed,and the energy utilization and anti-frost performance of the device is studied from both experimental and simulation aspects,and the analysis gives a method to improve the energy utilization and anti-frost of the evaporator under the change of heat pump operating parameters.The results showed that the heat transfer capacity and COP of AWSHP were 9.132 kW and 3.81,respectively,which were 14.08%and 11.81%higher than that of air source heat pump.Simulation analysis of the fitted equations of AWSHP influencing factors showed that AWSHP refrigerant evaporation temperature and energy utilization were positively correlated at a constant value of water spray temperature and that increasing the air flow rate,water spray distance and temperature increased the refrigerant evaporation temperature,but increasing the water spray temperature decreased the energy utilization of the heat pump.

关 键 词：空气-水双热源热泵 传热 效率 COP 除霜 

分 类 号：TB657[一般工业技术—制冷工程]