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Simulation of air-source heat pump water heater system with two-stage compression cycle
Pages: 88-93
Year: Issue:  3
Journal: Journal of Nanjing University of Technology(Natural Science Edition)

Keyword:  热泵双级压缩模拟稳态模型;
Abstract: 为研究双级空气源热泵热水器运行参数对其性能的影响,缩短机组的开发周期,采用稳态仿真的方法对双级压缩热泵系统进行仿真模拟,建立各部件模型,并对中间冷却器建立模型,采用R134a制冷剂,低压和高压级压缩机为活塞式压缩机,活塞排量分别为32.7和18.3 cm3,蒸发器选择一般的翅片管式换热器.结果表明:系统性能系数(COP)随冷凝压力和中间压力的增大而减小,随蒸发温度增大而增大;系统耗功则随中间压力增...
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