相变蓄能型空气源热泵系统制热及除霜性能研究  

Research on heating and defrosting performance of phase-change energy storage air source heat pump system

作　　者：崔四齐[1] 李慧鑫 白静[1] 李程 谷可轩 和思源 王乐健 杨涵斐 Cui Siqi;Li Huixin;Bai Jing;Li Cheng;Gu Kexuan;He Siyuan;Wang Lejian;Yang Hanfei(School of Energy and Environment,Zhongyuan University of Technology,Zhengzhou 451191,China)

机构地区：[1]中原工学院能源与环境学院,郑州451191

出　　处：《低温与超导》2024年第7期60-66,74,共8页Cryogenics and Superconductivity

基　　金：国家自然科学基金(52076219);河南省科技攻关项目(202102310556)资助。

摘　　要：针对常规空气源热泵低温制热性能差、除霜慢且能耗高等突出问题,提出并设计了一种相变蓄能型空气源热泵系统,通过实验探究其制热及除霜性能。结果表明,在室外侧和室内侧干/湿球温度分别为2℃/1℃和20℃/12℃的工况下,制热模式时,与常规空气源热泵系统相比,该系统平均制热量提高了11.87%,制热性能系数(COP)平均值提高了11.46%,总蓄能量达1042.91 kJ;除霜模式时,与常规逆向除霜相比,该系统除霜时间缩短了20.83%,除霜耗能减少了15%,且不从室内侧吸取热量和额外消耗能量,除霜及节能效果十分显著。本研究可为提高空气源热泵制热性能及除霜效率提供一定的参考价值。Aiming at the outstanding problems such as poor low-temperature heating performance,slow defrosting and high energy consumption of conventional air-source heat pumps,a phase-change energy storage air-source heat pump system was proposed and designed,and its heating and defrosting performance was investigated through experiments.The results show that,when the outdoor and indoor dry/wet bulb temperatures are 2℃/1℃and 20℃/12℃respectively,compared with the conventional air source heat pump system,the average heating capacity of the system is increased by 11.87%,the average COP is increased by 11.46%,and the total energy storage reaches 1042.91 kJ.When defrosting mode,compared with the conventional reverse defrosting,the defrosting time of this system is shortened by 20.83%,the defrosting energy consumption is reduced by 15%,and it does not draw heat from the indoor side and consume additional energy,so the defrosting and energy saving effect is very significant.This study can provide some reference value for improving the heating performance and defrosting efficiency of air source heat pumps.

关 键 词：空气源 热泵 相变蓄能 制热 除霜 

分 类 号：TK124[动力工程及工程热物理—工程热物理]