| 工质变比热和传热损失对Diesel循环性能的影响 |
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| 引用本文： | 戈延林,陈林根,孙丰瑞.工质变比热和传热损失对Diesel循环性能的影响[J].海军工程大学学报,2005,17(6):21-25. |
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| 作者姓名： | 戈延林 陈林根 孙丰瑞 |
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| 作者单位： | 1. 海军工程大学,船舶与动力学院,湖北,武汉,430033
2. 海军工程大学,船舶与动力学院,湖北,武汉,430033;海军工程大学,研究生院,湖北,武汉,430033 |
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| 基金项目： | 新世纪优秀人才支持规划项目，全国优秀博士论文作者专项资金资助项目(200136) |
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| 摘 要： | 用有限时间热力学的方法分析空气标准Diesel循环,由数值计算给出了存在传热损失和工质变比热时循环功与压缩比、效率与压缩比以及功和效率的特性关系,并分析了传热损失和工质变比热对循环性能的影响特点,通过分析可知传热和变比热特性对Diesel循环性能有较大影响,所以在实际循环分析中应该予以考虑.
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| 关 键 词： | 有限时间热力学 Diesel循环 性能优化 |
| 文章编号： | 1009-3486(2005)06-0021-05 |
| 修稿时间： | 2005年7月21日 |
Effects of heat transfer loss and variable specific heats of working fluid on performance of a Diesel cycle |
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| GE Yan-lin,CHEN Lin-gen,SUN Feng-rui.Effects of heat transfer loss and variable specific heats of working fluid on performance of a Diesel cycle[J].Journal of Naval University of Engineering,2005,17(6):21-25. |
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| Authors: | GE Yan-lin CHEN Lin-gen SUN Feng-rui |
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| Institution: | GE Yan-lin~ |
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| Abstract: | The performance of an air-standard Dieselcycle with heat transfer loss and variable speci-(fic) heats of working fluid is analyzed by finite-time thermodynamics.The relations between the workoutput and the compression ratio,between the thermal efficiency and the compression ratio,and the optimal relation between work output and the efficiency of the cycle are derivedby detailed numerical examples.Moreover,the effects of heat transfer loss and variable specific heats of working fluid on the cycle performance are analyzed.The results show that the effects of heat transfer loss and variable specific heats of workingfluid on the cycle performance are obvious,and should be consi-(dered) in the practical cycle analysis. |
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| Keywords: | finite-time thermodynamics Diesel cycle performance optimization |
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