| 变热容工质不可逆布雷顿热机的优化分析 |
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| 引用本文： | 刘静宜,林比宏.变热容工质不可逆布雷顿热机的优化分析[J].黑龙江八一农垦大学学报,2010,22(5):91-95. |
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| 作者姓名： | 刘静宜 林比宏 |
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| 作者单位： | [1]漳州师范学院物理与电子信息工程系,漳州363000 [2]华侨大学信息科学与工程学院,漳州363000 |
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| 基金项目： | 福建省自然科学基金计划资助项目，福建省教育厅科技计划项目 |
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| 摘 要： | 研究以变热容气体为工质的不可逆布雷顿热机循环的优化性能,导出循环的输出功率和效率的表达式,通过数值计算获得循环的一些重要优化特性曲线。结果表明,当布雷顿热机运行在压强比、热机效率、输出功率、工质的最低和最高温度的优化区间时,热机的性能最佳。变热容工质对上述优化区间的影响是显著的。
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| 关 键 词： | 布雷顿热机 变热容 不可逆性 优化分析 |
Optimal Analysis of an Irreversible Brayton Heat Engine with the Variable Heat Capacity Working Substance |
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| Liu Jingyi,Lin Bihong.Optimal Analysis of an Irreversible Brayton Heat Engine with the Variable Heat Capacity Working Substance[J].Journal of Heilongjiang August First Land Reclamation University,2010,22(5):91-95. |
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| Authors: | Liu Jingyi Lin Bihong |
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| Institution: | 1. Department of Physics and Electronic Information Engineering,Zhangzhou Normal University,Zhangzhou 363000; 2. College of Information Science and Engineering,Huaqiao University) |
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| Abstract: | The optimal performance of an irreversible Brayton heat engine with the variable heat capacity working substance is researched,and the expressions for the output power and efficiency of the cycle are derived. Some important optimal performance characteristic curves are generated through the numerical calculation. It is shown that the performance of Brayton heat engine is the best when running at optimal regions of the pressure ratio,efficiency,output power,the lowest and highest temperatures of the working substance. It is also found that the influence of the variable heat capacity working substance on the above optimal regions is remarkable. |
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| Keywords: | Brayton cycle variable heat capacity irreversibility optimal analysis |
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