| 自复叠制冷系统内部参数的理论研究 |
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| 引用本文： | 金从卓,张少谦,王铁军. 自复叠制冷系统内部参数的理论研究[J]. 低温与超导, 2009, 37(1) |
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| 作者姓名： | 金从卓 张少谦 王铁军 |
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| 作者单位： | 西安交通大学,西安,710049;合肥天鹅科技制冷有限公司,合肥,230088;合肥天鹅科技制冷有限公司,合肥,230088;合肥工业大学,合肥,230009 |
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| 摘 要： | 以采用R23/R134 a二元混合工质为制冷剂的自复叠制冷系统为分析对象,借助数值模拟软件和焓-浓关系图,从理论上研究自复叠制冷系统冷凝温度(环境状态)、蒸发温度及循环运行浓度等内部参数的关系及对系统性能(COP)的影响。结果表明,在循环运行浓度不变条件下,蒸发温度变化对系统COP的影响要大于冷凝温度变化所产生的影响;而在冷凝温度和蒸发压力不变时,随着循环运行浓度的升高,冷凝压力升高,蒸发温度下降,单位制冷量基本不变,单位耗功量增幅明显,系统的COP下降。
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| 关 键 词： | 自复叠制冷系统 数值研究 内部参数 循环运行浓度 |
Theoretical investigation on inner parameters of auto-cascade refrigeration system |
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| Jin Congzhuo,Zhang Shaoqian,Wang Tiejun. Theoretical investigation on inner parameters of auto-cascade refrigeration system[J]. Cryogenics and Superconductivity, 2009, 37(1) |
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| Authors: | Jin Congzhuo Zhang Shaoqian Wang Tiejun |
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| Affiliation: | 1.Xi'an Jiaotong University;Xi'an 710049;China;2.Hefei Swan Refrigerator Technology Co.;Ltd;Hefei 230088;3.Hefei University of Technology;Hefei 230008;China |
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| Abstract: | The auto-cascade refrigeration cycle with R23/R134a mixture refrigerant was studied,and through the schematic diagram of enthalpy-concentration relationship and numerical simulation program,the relationship of inner parameters among condensing temperature(environmental state),evaporation temperature and cycle concentration etc.was studied,and the effects on the coefficient of the performance(COP) were also analyzed.Results show that,evaporation temperature change has more effect on the COP than that of cond... |
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| Keywords: | Auto-cascade refrigeration system Numerical study Inner parameter Cycle concentration |
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