| CO_2/NH_3复叠系统热力分析与冷凝蒸发器冷凝温度的优化 |
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| 引用本文： | 申文军,余晓明,李金峰,冯熙.CO_2/NH_3复叠系统热力分析与冷凝蒸发器冷凝温度的优化[J].低温与超导,2009,37(7). |
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| 作者姓名： | 申文军 余晓明 李金峰 冯熙 |
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| 作者单位： | 上海理工大学制冷技术研究所,上海,200093 |
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| 基金项目： | 上海市重点学科建设项目 |
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| 摘 要： | 对CO2/NH3复叠制冷系统进行合理的假设,并将与压比有关的压缩机等熵效率拟合公式引用到计算中,其结果与实验数据吻合的比较好。通过热力分析,可知系统各主要部件由不可逆而多消耗的附加功在不同的Tcas_c下对系统的影响程度是不同的。对数据进行分析并应用多元线性回归法拟合出以Te、Tc和ΔT为自变量的最优Tcas_c及相应COPmax数学表达式。
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| 关 键 词： | CO2/NH3 复叠制冷系统 热力分析 优化 性能系数 |
Thermal analysis of CO2/NH3 cascade system and optimization of condensing temperature |
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| Shen Wenjun,Yu Xiaoming,Li Jinfeng,Feng Xi.Thermal analysis of CO2/NH3 cascade system and optimization of condensing temperature[J].Cryogenics and Superconductivity,2009,37(7). |
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| Authors: | Shen Wenjun Yu Xiaoming Li Jinfeng Feng Xi |
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| Institution: | Institute of Refrigeration Technology;University of Shanghai for Science and Technology;Shanghai 200093;China |
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| Abstract: | With the reasonable hypothesis on the cascade refrigeration system that uses carbon dioxide and ammonia as refrigerants,and applying the isentropic efficiency fitting formulas that are relative to compress rate of the compressor in calculating theoretical model,it is found that the results agreed closely with the reported experimental data.By the thermodynamic analysis of the cascade refrigeration system,it is discovered that the additional power caused by each of the main components of the refrigeration sy... |
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| Keywords: | CO2/NH3 CO2/NH3 Cascade refrigeration system Thermodynamically analysis Optimization COP |
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