| 摘要: |
| 针对空气源热泵除霜问题，分别对逆循环除霜系统、热气旁通除霜系统和相变蓄能除霜系统进行对比实验，并对三种除霜方式的除霜时间、除霜时压缩机排气压力、室内温度波动等特性进行比较分析。实验结果表明，相变蓄能系统除霜时的压缩机排气温度比另外两种系统高，使得冷凝温度升高，更有利于缩短除霜时间，且室内温度相对稳定，系统能耗也随之减少。 |
| 关键词: 热工学 除霜性能 比较 逆Ñ环除霜 热气旁通除霜 相变蓄能除霜 空气源热泵 |
| DOI： |
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| 基金项目: |
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| The Performance Comparison of Several Defrosting Modes for Air-source Heat Pump |
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Zhang Jie, Lan Jing, Du Ruihuan, Gao Guofeng
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| (School of Urban Construction, Hebei University of Engineering) |
| Abstract: |
| The defrosting time, discharge pressure, indoor temperature fluctuations and other defrosting characteristics of air source heat pump were experimentally investigated at three defrosting modes, i.e., reverse cycle defrosting, hot gas bypass defrosting and phase change material defrosting. The results showed that the performance of phase change material defrosting system is better than the others. The phase change material has increased the discharge temperature and the condensing temperature, which benefits to the decrease of defrost time and energy consumption, and the indoor temperature is relatively stable. |
| Key words: Pyrology Defrosting performance Comparison Reverse cycle defrosting Hot-gas bypass defrosting Phase change material defrosting Air source heat pump |
