| 双级空气源热泵热水器系统性能分析 |
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| 引用本文： | 陈军,;李波海.双级空气源热泵热水器系统性能分析[J].承德石油高等专科学校学报,2014(3):34-36. |
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| 作者姓名： | 陈军 ;李波海 |
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| 作者单位： | [1] 承德石油高等专科学校热能工程系,河北 承德067000; [2] 承德石油高等专科学校化学工程系,河北 承德067000 |
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| 基金项目： | 校级课题（双极压缩空气源热水器的开发） |
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| 摘 要： | 为研究双级空气源热泵热水器运行参数对其性能的影响,采用稳态仿真的方法对双级压缩热泵系统进行仿真模拟,建立了各部件模型,并对中间冷却器建立模型,采用R134a作为制冷剂。结果表明:系统性能系数(COP)和制热量随环境温度的降低而减小,在同一蒸发温度下随冷凝温度增高而减小;单、双级系统在环境温度5℃以上时应进行切换,低于-20℃时不宜于运行。
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| 关 键 词： | 热泵 双级压缩 模拟 稳态模型 |
Performance Analysis of Water Heating System of Air Source Heat Pump with Two Stage Compression Cycle |
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| Affiliation: | CHEN Jun, LI Bo-hai ( 1. Department of Thermal Engineering, Chengde Petroleum College, Chengde 067000, Hebei, China; 2. Department of Chemical Engineering, Chengde Petroleum College, Chengde 067000, Hebei, China) |
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| Abstract: | To study the impact of operating parameters of two stage air source heat pump water heateron its performance and shorten the development cycle unit, a system model of the two stage compres-sion heat pump water heater was built by the steady state simulation method, and the model of mid-dle chiller was also built using R134a refrigerant. The result indicated that system COP and heat out-put decreased with the decrease of environmental temperature, and decreased with the condensingtemperature increase at the same evaporation temperature. A turning point came when the environ-mental temperature reached 5 ℃ , and the two stage compression will not be suitable to be used at orbelow - 20 ℃. |
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| Keywords: | heat pump two stage compression simulation steady state model |
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