RESEARCH PAPERS: Gas Turbines: Combustion and Fuels

Experimental Investigation of the Liquid Fuel Evaporation in a Premix Duct for Lean Premixed and Prevaporized Combustion

[+] Author and Article Information
M. Brandt, K. O. Gugel, C. Hassa

Institute for Propulsion Technology, German Aerospace Research Establishment, D-51140 Köln, Federal Republic of Germany

J. Eng. Gas Turbines Power 119(4), 815-821 (Oct 01, 1997) (7 pages) doi:10.1115/1.2817059 History: Received February 01, 1996; Online November 19, 2007


Liquid fuel evaporation was investigated in a premix duct, operating at conditions expected for lean premixed and prevaporized combustion. Results from a flat prefilming airblast atomizer are presented. Kerosine Jet A was used in all experiments. Air pressure, air temperature, and liquid fuel flow rate were varied separately; their relative influences on atomization, evaporation, and fuel dispersion are discussed. The results show that at pressures up to 15 bars and temperatures up to 850 K, nearly complete evaporation of the fuel was achieved, without autoignition of the fuel. For the configuration tested, the fuel distributions of the liquid and evaporated fuel show very little difference in their dispersion characteristics and were not much affected by a variation of the operating conditions.

Copyright © 1997 by The American Society of Mechanical Engineers
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