文章基本信息

标题：Operation of a gas turbine air bottoming cycle at part load
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作者：Daniel Czaja ; Tadeusz Chmielniak ; Sebastian Lepszy 等
期刊名称：Bulletin of the Institute of Heat Engineering
印刷版ISSN：2083-4187
出版年度：2013
卷号：93
期号：5
页码：279-287
语种：English
出版社：Warsaw University of Technology
摘要：The purpose of this study is to analyze the performance characteristics of a gas turbine air bottoming cycle operating at part load conditions. The most effective option in terms of the energy efficiency of each installation is operating with a nominal load. Various applications have other needs. For example marine gas turbines should characterized by high value of efficiency in a wide range of load. There are many other examples of installation which spend most of time at power levels significantly lower than maximum. This paper presents two-shaft gas turbine air bottoming cycle. The gas turbine is coupled to the air part by means of an air heat exchanger. This configuration allows the gas turbine operating at nominal load while the cycle power output is regulated by air turbine part load. However, due to the fact that the mechanical power output ratio of the air turbine and the gas turbine is about 0.17-0.20 it is necessary to consider a variant where the gas turbine also operates at part load. Chosen results are summarized and compared with a standalone gas turbine unit.