Atomization Characteristics of Camelina-Based Alternative Aviation Fuels Discharging From Dual-Orifice Injector

Journal of Engineering for Gas Turbines and Power - Tập 137 Số 8 - 2015
D. Sivakumar1, R. Sakthikumar2, B. N. Raghunandan3, John Hu4, S.S.V. Ramakumar5, A. K. Jain6
1Associate Professor Mem. ASME Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India e-mail:
2Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India e-mail:
3Professor Department of Aerospace Engineering, Indian Institute of Science, Bangalore 560012, India e-mail:
4Hot Section Technology, Pratt & Whitney Canada, Mississauga, ON L5T 1J3, Canada e-mail:
5R&D Centre, Indian Oil Corporation Ltd., Faridabad 121007, India e-mail:
6R&D, Hindustan Petroleum Corporation Limited, Navi Mumbai 400705, India e-mail:

Tóm tắt

The atomization characteristics of blends of bioderived camelina hydrogenated renewable jet (HRJ) alternative fuel with conventional aviation kerosene (Jet A-1) discharging into ambient atmospheric air from a dual-orifice atomizer used in aircraft engines are described. The spray tests are conducted in a spray test facility at six different test flow conditions to compare the atomization of alternative fuels with that of Jet A-1. The fuel sprays are characterized in terms of fuel discharge, spray cone angle, drop size distribution, and spray patternation. The measurements of spray drop size distribution are obtained using laser diffraction based Spraytec equipment. The characteristics of fuel discharge and cone angle of alternative fuel sprays do not show any changes from that of Jet A-1 sprays. The characteristics of spray drop size, evaluated in terms of the variation of mean drop size along the spray axis, for the alternative fuel sprays remain unaffected by the variation in fuel properties between the alternative fuels and Jet A-1. The measurements on spray patternation, obtained using a mechanical patternator at a distance 5.1 cm from the atomizer exit, show an enhanced fuel concentration in the vicinity of spray axis region for the alternative fuel sprays discharging from the dual-orifice atomizer.

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Journal of Engineering for Gas Turbines and Power

Tập 137 Số 8

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