Performance of a small-scale turbojet engine fed with traditional and alternative fuels
2014
Badami, M. | Nuccio, P. | Pastrone, D. | Signoretto, A.
The growing use of aeronautical fuels, together with the increasing attention towards reduced environmental impact technologies, are driving governments and aeronautical companies to search for alternative aeronautical fuels to petroleum based kerosene. Analysis and measurements on real aeronautical turbines are complex and expensive; for this reason the use of parts of real engines or small size turbojets can be very interesting for research activities. The present paper describes the results of an experimental and numerical activity, regarding the influence of alternative fuels on the performance in term of emissions, on a small-scale turbojet engine with a nominal thrust of 80N at 80,000rpm. Three different fuels, a traditional Jet-A kerosene, a synthetic Gas To Liquid (GTL) fuel and a blend of 30% Jatropha Methyl Ester (JME) and 70% Jet-A, were tested. The experimental results, in term of CO, UHC and NOx emissions, are discussed and compared with results obtained from CFD analysis and from semi-empirical equations found in literature.
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