| 双级压缩跨临界CO_2热泵中间冷却型式优化 |
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| 引用本文： | 谢英柏,孙刚磊,刘春涛,论立勇.双级压缩跨临界CO_2热泵中间冷却型式优化[J].工程热物理学报,2009,30(11). |
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| 作者姓名： | 谢英柏 孙刚磊 刘春涛 论立勇 |
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| 作者单位： | 华北电力大学电站设备状态监测与控制教育部重点实验室,河北保定,071003 |
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| 摘 要： | 双级压缩跨临界CO_2热泵适合于低温地板辐射采暖.以北京市某建筑为对象,进行了双级压缩跨临界CO_2热泵中间冷却型式的优化分析.结果表明:与单级压缩循环相比,双级压缩循环提高了系统供热的性能系数(COP),并且双级压缩循环中间完全冷却的COP高于中间不完全冷却型式.同时在保持最佳中间冷却压力下,双级压缩中间不完全冷却型式的COP随着高压级压缩机入口CO_2蒸气过热度的增加而逐渐减小.因此在实际系统设计中,双级压缩跨临界CO_2采暖热泵宜采用中间完全冷却型式.
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| 关 键 词： | 双级压缩 跨临界CO_2热泵 中间冷却 优化 |
INTERCOOLING PATTERN OPTIMIZATION OF TWO-STAGE TRANS-CRITICAL CARBON DIOXIDE HEAT PUMP |
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| XIE Ying-Bai,SUN Gang-Lei,LIU Chun-Tao,LUN Li-Yong.INTERCOOLING PATTERN OPTIMIZATION OF TWO-STAGE TRANS-CRITICAL CARBON DIOXIDE HEAT PUMP[J].Journal of Engineering Thermophysics,2009,30(11). |
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| Authors: | XIE Ying-Bai SUN Gang-Lei LIU Chun-Tao LUN Li-Yong |
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| Institution: | XIE Ying-Bai SUN Gang-Lei LIU Chun-Tao LUN Li-Yong (MOE s Key Lab of Condition Monitoring and Control of Power Plant Equipment,Baoding 071003,China) |
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| Abstract: | A two-stage trans-critical CO_2 heat pump is suitable for heating low-temperature radiant floor.For an architecture in Beijing,the intercooling pattern optimization of a two-stage trans-critical CO_2 heat pump is processed.Results indicate that the two-stage compression cycle has a higher coefficient of heating performance(COP) than that in a single stage compression cycle.For a two-stage compression cycle,the COP of a complete intercooling type is higher than an incomplete intercooling type.As the degree o... |
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| Keywords: | two-stage compression cycle trans-critical carbon dioxide heat pump intercooling optimazation |
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