Operation of a gas turbine air bottoming cycle at part load

• Autorzy: Czaja D. , Chmielniak T. , Lepszy S.
• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

part-load operation; air bottoming cycle; gas turbine air bottoming cycle; gas turbine

PL

praca w niepełnym obciążeniu; obieg dolnego powietrza; turbina gazowa obiegu dolnego powietrza; turbina gazowa

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2013
• Tom: Vol. 93, nr 5
• Strony: 279--287
• Opis fizyczny: Bibliogr. 16 poz., rys., wykr.

Twórcy

autor

Czaja D.

• Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Gliwice, Poland

autor

Chmielniak T.

• Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Gliwice, Poland

autor

Lepszy S.

• Institute of Power Engineering and Turbomachinery, Silesian University of Technology, Gliwice, Poland

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