Design-point, off-design meanline performance analysis and CFD computations of the axial turbine to micro gasturbine engine

• Autorzy: Bar W. , Czarnecki M.
• Języki publikacji: EN

Abstrakty

EN

Presented paper consists detailed analysis of the turbine to micro gasturbine. Calculatios was made for axial turbine with given mass flow rate m=0.15 [kg/s] and total inlet temperature T3*=950 [K]. The results of Design-Point, Off-Design Meanline Performance analysis and CFD computation are presented. The differences between typical size gasturbine turbines and turbines to micro-gasturbines are highlighted and some guidelines for designers of microgasturbines are given. As a major conclusions for designers of microgasturbines there is a considerations that require to be very carefull and forewarn that typical corelations for commercial gas turbines could't be take it as granted. In particular, compression ratio — solution possibility, micro gasturbine rotor speed,turbine expansion ratio Pi T as a function of compressor and turbine efficiency, efficiency of turbine as a function of reynolds number for constant specific speed coefficient and constant specific diameter coefficient,turbine to micro gasturbine performance map for different normalized rotational speed, 2D and 3D contour plots of entropy, relative Mach number at middle cut of the blade, static pressure at middle cut of the blade are presented in the paper.

Słowa kluczowe

EN

turbine; gasturbine; axial turbine; micro; CFD

• Wydawca: Łukasiewicz Research Network - Institute of Aviation ; European Science Society of Powertrain and Transport KONES Poland ; Wydawnictwo Instytutu Technicznego Wojsk Lotniczych
• Czasopismo: Journal of KONES
• Rocznik: 2009
• Tom: Vol. 16, No. 4
• Strony: 9--16
• Opis fizyczny: Bibliogr. 10 poz., rys.

Twórcy

autor

Bar W.

autor

Czarnecki M.

• Rzeszów University of Technology, Department of Aircraft and Aircraft Engines Powstancow Warszawy Street 8, 35-959 Rzeszów tel:[phone],

Bibliografia

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• [3] Czarnecki, M., Turbine micro engines in UAV application, Jurnal of Aeronautica Integra, No. I, pp. 13-28, 2008.
• [4] Mustapha, H., Zelesky, M., Baines, N., Japikse, D., Axial and radial turbines, Concepts NREC 2005.
• [5] Kamps, T., Model jet engines, Traplet publications, 2005.
• [6] Saravanamuttoo, H., Gas turbine theory, Pearsons education limited, 2001.
• [7] Axial Help, Concepts NREC 2008.
• [8] AxCent Help, Concepts NREC 2008.
• [9] Denton, J. D., Loss Mechanism in Turbomachines, The 1993 IGTI Scholar Lecture, Journal of Turbomachinery, Vol. 115, pp. 621-656, 1993.
• [10] Schlienger, J. P., Evolution of Unsteady Secondary Flows in a Multistage Shrouded Axial Turbine, Thesis, Diss. ETH, No. 15230, 2003.