| 以(火用)分析法比较制冷工质的流动换热性能 |
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| 引用本文： | 杨丽明.以(火用)分析法比较制冷工质的流动换热性能[J].华中科技大学学报(自然科学版),2003,31(6). |
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| 作者姓名： | 杨丽明 |
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| 作者单位： | 湛江海洋大学工程学院 |
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| 基金项目： | 湛江海洋大学工程热物理重点学科基金资助项目 |
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| 摘 要： | 借助于控制体热平衡和熵平衡导出换热过程火用损失率方程 ,利用换热过程的火用损失率方程得到了 3种天然制冷工质 (氨、二氧化碳、丙烷 )和常用卤代烃制冷工质在不同换热方式下的综合特性 ,并在相同换热模式下进行分析比较 .结果表明 ,上述几种天然工质 (尤其是氨 )其流动与传热的综合性能优于R2 2 ,R5 0 0和R114等几种常用的卤代烃工质
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| 关 键 词： | 对流换热 天然工质 损失率 性能评价 |
Comparison of the convective heat transfer performance of refrigerants by an exergy analysis method |
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| Yang Liming.Comparison of the convective heat transfer performance of refrigerants by an exergy analysis method[J].JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE,2003,31(6). |
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| Authors: | Yang Liming |
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| Institution: | Yang Liming |
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| Abstract: | The exergy loss rate equations were derived by the bala nces of heat and entropy in the control volume. The synthetic performance of sev eral natural refrigerants (ammonia, carbon dioxide, propane) and several halocar bon compounds refrigerants were discovered by the exergy loss rate equations und er the same heat transfer conditions. The results show that under same condition s the synthetic performance of the three natural refrigerants, especially ammoni a, is better than that of the common halocarbon compounds refrigerants. |
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| Keywords: | heat convection natural refrigerant exerg y loss rate performance evaluation |
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