Identification of design parameters for microgasturbine engines

• Autorzy: Czarnecki M.

Identyfikatory

DOI

10.5604/12314005.1168445

• Języki publikacji: EN

Abstrakty

EN

The research object consists study of simplified turbojet engine known as a Schreckling design. Simplified layout is related to single centrifugal compressor and single axial turbine design (1R-1T). Presented design is favoured in model gasturbines that uses common compressor rotor from automotive turbochargers. Input data for further calculations was obtained from Garret turbo systems compressor performance maps. Total pressure and total to static stage efficiency was assumed from map of contours at maximum stage efficiency. Additional data from database allowed determining outer diameter and rotational speed of the compressor rotor. Collected data was applied to gasturbine thermogasdynamics model. Decision variables: mass flow rate from 0.1-0.8 [kg/s] range, and exhaust gas temperature from 800-1200 [K] range was taken into account. Turbine expansion ratio was calculated with thermo-mechanical coupling conditions for engine continuous operation. Calculated engine thrust and specific fuel consumption was presented in reference to AMT Netherlands microgasturbine range. Presented results allow to rapid identification of design parameters at early stage of design Obtained results allow to omit thermogasdynamics calculations and focus on the design of the individual engine components. Number of computational models is reduced by 20-30% in reference to given assumptions.

Słowa kluczowe

EN

turbine engines; gasturbine; micro; propulsion

• 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: 2015
• Tom: Vol. 22, No. 4
• Strony: 79--85
• Opis fizyczny: Bibliogr. 7 poz., rys.

Twórcy

autor

Czarnecki M.

• Rzeszow University of Technology Department of Aircraft and Aircraft Engines Powstańców Warszawy Avenue 8, 35-959 Rzeszow, Poland tel.: [phone], fax: [phone]

Bibliografia

• [1] Armfield, S., Numerical investigation of a small gas turbine compressor, 16th Australasian Fluid Mechanics Conference, p. 965, 2007.
• [2] Mustapha, H., Zelesky, M., Baines, N., Japikse, D., Axial and radial turbines, Concepts NREC, 2005.
• [3] Kamps, T., Model Jet Engines, Traplet Publications, Worcestershire 2005.
• [4] Muszyński, M., Orkisz, M., Modelling of turbine jet engines, WIoA, Warsaw 1997 (in Polish).
• [5] Saravanamuttoo, H., Gas Turbine Theory, Pearsons Education Ltd., 2001.
• [6] Schreckilng, K., Home Built Model Turbines, Traplet Publications, Worcestershire 2005.
• [7] Garret, Garret Turbochargers Catalogue, 2008.