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Helicopter turboshaft engine ground performance with alternative fuels
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Date
2012
Author
Başlamişli, Ufuk
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In recent years, extensive studies on alternative fuels have been conducted to find environmentally friendly, economically feasible fuels due to finite petroleum sources, environmental and economical reasons. In this thesis, effects of alternative fuels on engine performance and exhaust emission are studied experimentally. Cold and reacting tests have been performed. Volumetric flow rate, discharge pressure are measured according to different pump speed. Droplet diameters, droplet distribution, spray cone angle and two dimensional velocity distribution from combustor fuel nozzle are determined by IPI and PIV technique. The comparative performance of alternative fuels and JET A-1 are investigated by atmospheric combustion tests and experimental turbojet tests in terms of exhaust gas temperatures, emissions, combustion chamber efficiency. Emissions, combustion chamber exit temperature profile, power turbine inlet and exhaust gas temperatures, effects of fuels on engine performance are observed and measured in detail at RR Allison 250 C-18 turbo-shaft engine.
Subject Keywords
Helicopters
,
Alternative fuel vehicle industry.
URI
http://etd.lib.metu.edu.tr/upload/12614098/index.pdf
https://hdl.handle.net/11511/21369
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Graduate School of Natural and Applied Sciences, Thesis
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U. Başlamişli, “Helicopter turboshaft engine ground performance with alternative fuels,” M.S. - Master of Science, Middle East Technical University, 2012.
