提取水凝固潜热的热泵供暖系统[火用]分析  

Exergic Analysis of Heat Pump Heating System for Extracting Latent Heat of Water Solidification

作　　者：姜钊乐 张昌建 杨国栋 彭磊 Jiang Zhaole;Zhang Changjian;Yang Guodong;Peng Lei(School of Energy and Environmental Engineering,Hebei University of Engineering,Handan,056038;Hebei HVAC Engineering Technology Innovation Center,Handan,056038)

机构地区：[1]河北工程大学能源与环境工程学院,邯郸056038 [2]河北省暖通空调工程技术创新中心,邯郸056038

出　　处：《制冷与空调(四川)》2025年第2期239-245,共7页Refrigeration and Air Conditioning

基　　金：河北省重点研发计划项目(236Z4310G);河北省创新能力提升计划项目(202250702010094)。

摘　　要：建立了提取水凝固潜热的热泵供暖系统[火用]分析模型,从流体换热的角度对系统各换热器进行[火用]分析,并通过具体实验分析了系统各部件的[火用]效率与[火用]损失,结果表明:系统主要[火用]损失发生在相变换热器,[火用]损率为71.42%,同时其[火用]效率最低仅有1.13%,其次为热泵机组,[火用]损率为21.18%,增大冷凝器出水温度可提高系统[火用]效率,针对相变换热器与热泵机组提出了改进方法,指出了减少[火用]损失提高系统[火用]效率的途径。Exergic analysis model of heat pump heating system which extracted latent heat of water solidification was established,exergic analysis of each heat exchanger in the system was carried out from the perspective of fluid heat transfer,and exergic efficiency and exergic loss of each component of the system were analyzed through specific experiments.The results show that:The exergic loss of the system mainly occurred in the phase change heat exchanger,where the exergic loss rate was 71.42%,and the exergic efficiency was only 1.13% at the lowest level,followed by the heat pump unit,where the exergic loss rate was 21.18%,reducing the condenser effluent temperature can improve the exergic efficiency of the system.Improvements are proposed for the phase change heat exchanger and heat pump unit,and ways to reduce exergic loss and improve the exergic efficiency of the system are pointed out.

关 键 词：凝固潜热 供暖系统 [火用]损率 [火用]分析 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]