| 两次节流循环在氨制冷系统的效率分析 |
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| 引用本文： | 张建一,陈海洋.两次节流循环在氨制冷系统的效率分析[J].低温与超导,2012,40(7):59-62,79. |
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| 作者姓名： | 张建一 陈海洋 |
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| 作者单位： | 1. 集美大学机械工程学院,厦门,361021
2. 集美大学机械工程学院,厦门361021;上海海洋大学食品学院,上海201306 |
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| 摘 要： | 文中分析不同节流方式下的两级压缩制冷循环。基于冷库实例,计算出了制冷循环在一次节流和二次节流方式下的制冷系数。结果显示,使用两次节流制冷循环,理论制冷系数提高了1.3%,冷库实例制冷系数提高了0.7%-0.8%。两次节流制冷系统在满负荷下运行时,压缩机消耗的理论功率比一次节流下降5kW。使用两次节流方式的制冷系统,在初投资费用上也有所降低。
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| 关 键 词： | 两次节流 制冷系数 系统优化 节能 |
Efficiency analysis on the cycle with flash intercooler in ammonia refrigeration system |
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| Zhang Jianyi
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Chen Haiyang.Efficiency analysis on the cycle with flash intercooler in ammonia refrigeration system[J].Cryogenics and Superconductivity,2012,40(7):59-62,79. |
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| Authors: | Zhang Jianyi Chen Haiyang |
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| Institution: | 1,2(1.College of Mechanical Engineering,Jimei University,Xiamen 36102,China; 2.College of Food Science & Technology,Shanghai Ocean University,Shanghai 201306,China) |
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| Abstract: | his paper analyzed the two-stage compression refrigeration cycle with different intercoolers.The refrigeration coefficients of cycles with shell-and-coil intercooler and flash intercooler were calculated based on a case of cold store.The results show that theoretical refrigeration coefficient increased by 1.3% and the refrigeration coefficient for the case increased by 0.7%-0.8% when shell-and-coil intercooler was replaced by flash intercooler in two-stage compression cycle.The theoretical power consumption of refrigeration cycle with flash intercooler will decrease 5kW than that with shell-and-coil intercooler under full capacity.The initial investment cost will also reduce if flash intercooler is adopted in two-stage compression system. |
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| Keywords: | Flash intercooler Refrigeration coefficient System optimization Energy saving |
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