Mathematical modeling of an axial compressor in a gas turbine cycle

• Autorzy: Plis M. , Rusinowski H.
• Języki publikacji: EN

Abstrakty

EN

Contemporary thermal diagnostic systems of power units require advanced computational tools, including mathematical models. These models should have a simple structure and short computing time. These conditions are satisfied by models that include mass and energy balances as well as additional empirical functions whose coefficients are estimated by using the measurement results. This paper presents a simulation model of an axial compressor which forms part of a gas turbine unit with a rated output of 125.4 MW. The model was developed with the use of a generalized compressor map, describing the relationship between corrected air mass flow rate, pressure ratio, isentropic efficiency and corrected rotational speed. The model encompasses the empirical formula for compressor internal efficiency, which additionally considers the effect of variation of the angle of inlet guide vanes. The unknown values of empirical coefficients which appear in this equation were estimated on the basis of operating data. The calculation results obtained were compared with the measurement results. The quality of the model prediction was evaluated and conclusions were drawn.

Słowa kluczowe

EN

mathematical modelling; gas turbine; axial compressor; empirical functions; inlet guide vanes of compressor

PL

modelowanie matematyczne; turbina gazowa; sprężarka osiowa; funkcje empiryczne

• Wydawca: Institute of Heat Engineering, Warsaw University of Technology
• Czasopismo: Journal of Power Technologies
• Rocznik: 2016
• Tom: Vol. 96, nr 3
• Strony: 194--199
• Opis fizyczny: Bibliogr. 10 poz., rys., tab., wykr.

Twórcy

autor

Plis M.

• Institute of Thermal Technology, Silesian University of Technology, Konarski st. 22, Gliwice 44-100, Poland

autor

Rusinowski H.

• Institute of Thermal Technology, Silesian University of Technology, Konarski st. 22, Gliwice 44-100, Poland

Bibliografia

• [1] H. Rusinowski, Thermal diagnostic systems in exploitation. (in Polish), Polish Academies of Sciences, 2010.
• [2] P. P. Walsh, P. Fletcher, Gas turbine performance, John Wiley & Sons, 2004.
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• [6] F. Haglind, Variable geometry gas turbines for improving the part-load performance of marine combined cycles–gas turbine performance, Energy 35 (2) (2010) 562–570.
• [7] GateCycleTM version 6.0 Manual.
• [8] P. Wirkowski, Modelling the characteristics of axial compressor of variable flow passage geometry, working in the gas turbine engine system, Polish Maritime Research (2007) 27–32.
• [9] G. Szapajko, H. Rusinowski, Theoretical-empirical model of the steamwater cycle of the power unit, Acta Montanistica Slovaca 15 (1) (2010) 24.
• [10] M. P. Boyce, Gas turbine engineering handbook, second edition Edition, Gulf Professional Publishing, 2001.

Uwagi

PL

Opracowanie ze środków MNiSW w ramach umowy 812/P-DUN/2016 na działalność upowszechniającą naukę.