| CO_2载冷剂氨双级压缩制冷系统及其性能分析 |
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| 引用本文： | 张新玉,郭宪民.CO_2载冷剂氨双级压缩制冷系统及其性能分析[J].制冷与空调(北京),2014(12):69-72. |
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| 作者姓名： | 张新玉 郭宪民 |
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| 作者单位： | 天津商业大学天津市制冷技术重点实验室; |
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| 摘 要： | 针对氨制冷系统在实际应用中存在安全隐患的问题,总结提高系统安全性的方法和途径,介绍以CO2为载冷剂的半封闭式氨制冷系统的组成及其应用。对以CO2为载冷剂的氨双级压缩制冷系统性能进行理论计算与对比分析,结果表明：在蒸发温度为-50~-30℃范围内,与NH3/CO2复叠式制冷系统相比,CO2载冷剂氨双级压缩制冷系统的EER约高5.7%~10.8%。
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| 关 键 词： | 氨制冷系统 半封闭螺杆式氨制冷压缩机 CO2载冷剂 NH3/CO2复叠式制冷 |
Two-stage compression ammonia refrigeration system utilizing CO_2 as secondary refrigerant and its performance analysis |
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| Zhang Xinyu Guo Xianmin.Two-stage compression ammonia refrigeration system utilizing CO_2 as secondary refrigerant and its performance analysis[J].Refrigeration and Air-conditioning,2014(12):69-72. |
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| Authors: | Zhang Xinyu Guo Xianmin |
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| Affiliation: | Zhang Xinyu Guo Xianmin (Tianjin Key Laboratory of Refrigeration Technology,Tianjin University of Commerce) |
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| Abstract: | According to the potential safety hazard during the application of ammonia refrigeration system,the method and solution of improving the system＇s safety are summarized.The composition and application of semi-closed ammonia refrigeration system utilizing CO2 as secondary refrigerant are introduced.Through the theoretical calculation and comparison analysis of two-stage compression ammonia refrigeration system utilizing CO2 as secondary refrigerant,the results show that this system＇s EERis higher than that of NH3/CO2 cascade refrigeration system by about 5.7% to 10.8%,when the evaporating temperature changes from-50 ℃to-30 ℃. |
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| Keywords: | ammonia refrigeration system semi-closed ammonia screw refrigeration compressor CO2 secondary refrigerant NH3/CO2 cascade refrigeration |
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