| 单轴恒速回热燃气轮机的变工况解析特性及初步经济分析 |
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| 引用本文： | 张娜,蔡睿贤.单轴恒速回热燃气轮机的变工况解析特性及初步经济分析[J].工程热物理学报,1999(3). |
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| 作者姓名： | 张娜 蔡睿贤 |
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| 作者单位： | 中国科学院工程热物理研究所!北京，100080，中国科学院工程热物理研究所!北京，100080 |
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| 基金项目： | 国家攀登计划!85－39，国家自然科学基金!595060001 |
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| 摘 要： | 本文给出单轴恒速回热燃气轮机变工况特性的显式解析解，并且总结了其变工况的典型情况；发现当对所有参数都用与其设计值的比值表达时，燃气轮机效率可以基本总结为单一曲线，并定量论证了恒速单轴燃气轮机采用回热后变工况效率反而相对有所下降。利用得出的解析解，还对采用回热的经济评价给出了初步分析，给出了采用回热合适与否的判别公式。
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| 关 键 词： | 解析解 变工况 单轴回热燃气轮机 |
ANALYTICAL PART-LOAD PERFORMANCE AND PRELIMINARY ECONOMIC ANALYSICS OF SINGLE SHAFT RECUPERATIVE GAS TURBINE CYCLES |
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| ZHANG Na ,CAI Ruixian.ANALYTICAL PART-LOAD PERFORMANCE AND PRELIMINARY ECONOMIC ANALYSICS OF SINGLE SHAFT RECUPERATIVE GAS TURBINE CYCLES[J].Journal of Engineering Thermophysics,1999(3). |
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| Authors: | ZHANG Na CAI Ruixian |
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| Abstract: | A typical analytical solution of single shaft constant rotating speed recuperative gas turbine part-load performance is derived based on analytical typical component-mainly compressor, turbine and recuperator-performances. Typical part load performances are summarized and it is found out that for the gas turbine installation, when all parameters are represented by the ratio to design values, their variation in part-load can be expressed in a narrow belt. It is pointed out qualitatively that the recuperative gas turbine efficiency variation is relatively inferior to that of the simply cycle. A preliminary economic analysis is given and a simple criterion is derived to evaluate the necessity of adopting a recuperator. |
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| Keywords: | analitical solution off-design operation single shaft recuperative gas turbine |
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