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Fuel Effects on a Low-Swirl Injector for Lean Premixed Gas Turbines [electronic resource].

Published:
Berkeley, Calif. : Lawrence Berkeley National Laboratory. Environmental Energy Technologies Division, 2007.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description:
8 : digital, PDF file
Additional Creators:
Lawrence Berkeley National Laboratory, Lawrence Berkeley National Laboratory. Environmental Energy Technologies Division, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
Laboratory experiments have been conducted to investigate the fuel effects on the turbulent premixed flames produced by a gas turbine low-swirl injector (LSI). The lean-blow off limits and flame emissions for seven diluted and undiluted hydrocarbon and hydrogen fuels show that the LSI is capable of supporting stable flames that emit < 5 ppm NOₓ (@ 15% O₂). Analysis of the velocity statistics shows that the non-reacting and reacting flowfields of the LSI exhibit similarity features. The turbulent flame speeds, S{sub T}, for the hydrocarbon fuels are consistent with those of methane/air flames and correlate linearly with turbulence intensity. The similarity feature and linear S{sub T} correlation provide further support of an analytical model that explains why the LSI flame position does not change with flow velocity. The results also show that the LSI does not need to undergo significant alteration to operate with the hydrocarbon fuels but needs further studies for adaptation to burn diluted H₂ fuels.
Report Numbers:
E 1.99:lbnl-377e
lbnl-377e
Other Subject(s):
Note:
Published through SciTech Connect.
12/03/2007.
"lbnl-377e"
31st International Symposium on Combustion, Heidelberg, Germany, August 6-11, 2006.
Littlejohn, David; Cheng, R.K.
Funding Information:
DE-AC02-05CH11231
View MARC record | catkey: 14152550