| 斯特林热机的基本优化关系及功率和效率界限 |
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| 引用本文： | 严子浚,苏国珍.斯特林热机的基本优化关系及功率和效率界限[J].工程热物理学报,1999(5). |
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| 作者姓名： | 严子浚 苏国珍 |
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| 作者单位： | 厦门大学物理系!厦门361005 |
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| 摘 要： | 1前言近年来，有些学者应用有限时间热力学研究斯特林热机的优化性能，获得一些比经典热力学界限更有意义的新性能界限。但至今为数还较少，应继续开展研究。特别是有人提出“21世纪是斯特林热机的世纪’巾一］。本文将进一步研究受热阻、热漏和回热损失三种主要不可逆因素影响的斯特林热机的优化性能，导出热机的基本优化关系及功率和效率界限。结果表明，热漏的存在使斯特林热机的优化性能与无热漏时的有质的差异，而在热阻和回热损失的基础上再考虑热漏的影响，其结果将可反映出实际热机观测性能的主要特征【’，‘］，从而对实际更有指…
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| 关 键 词： | 有限时间热力学 斯特林热机 基本优化关系 性能界限 |
THE FUNDAMENTAL OPTIMAL RELATION AND THE BOUNDS OF POWER OUTPUT AND EFFICIENCY FOR A STIRLING HEAT ENGINE |
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| YAN Zijun,SU Guozhen.THE FUNDAMENTAL OPTIMAL RELATION AND THE BOUNDS OF POWER OUTPUT AND EFFICIENCY FOR A STIRLING HEAT ENGINE[J].Journal of Engineering Thermophysics,1999(5). |
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| Authors: | YAN Zijun SU Guozhen |
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| Abstract: | By using finite-time thermodynamics, the optimal performance of a Stirling heat engine with thermal resistance, heat leak and regenerative loss is studied. The fundamental optimal relation is derived and the bounds of power output and efficiency are deduced from it. Then the significance of the relation and bounds are revealed. The results obtained here may provide some new theoretical guides for the optimal design of Stirling heat engines. |
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| Keywords: | finite-time thermodynamics Stirling heat engine fundamental optimal relation performance bound |
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