A wave rotor is proposed for use as a constant volume combustor. A novel design feature is investigated as a remedy for hot gas leakage, premature ignition and pollutant emissions that are possible in this class of unsteady machines. The base geometry involves fuel injection partitions that allow stratification of fuel/oxidizer mixtures in the wave rotor channel radially, enabling pilot ignition of overall lean mixture for low NOx combustion. In this study, available turbulent combustion models are applied to simulate approximately constant volume combustion of propane and resulting transient compressible flow. Thermal NO production histories are predicted by simulations of the STAR-CD code. Passage inlet/outlet/wall boundary conditions are time-dependent, enabling the representation of a typical deflagrative internal combustor wave rotor cycle. Some practical design improvements are anticipated from the computational results. For a large number of derivative design configurations, fuel burn rate, two-dimensional flow and emission levels are evaluated. The sensitivity of channel combustion to initial turbulence levels is evaluated.
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ASME Turbo Expo 2002: Power for Land, Sea, and Air
June 3–6, 2002
Amsterdam, The Netherlands
Conference Sponsors:
- International Gas Turbine Institute
ISBN:
0-7918-3606-1
PROCEEDINGS PAPER
Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations Available to Purchase
Razi Nalim,
Razi Nalim
Indiana University – Purdue University, Indianapolis, IN
Search for other works by this author on:
Kerem Pekkan
Kerem Pekkan
Indiana University – Purdue University, Indianapolis, IN
Search for other works by this author on:
Razi Nalim
Indiana University – Purdue University, Indianapolis, IN
Kerem Pekkan
Indiana University – Purdue University, Indianapolis, IN
Paper No:
GT2002-30085, pp. 501-511; 11 pages
Published Online:
February 4, 2009
Citation
Nalim, R, & Pekkan, K. "Two-Dimensional Flow and NOx Emissions in Deflagrative Internal Combustion Wave Rotor Configurations." Proceedings of the ASME Turbo Expo 2002: Power for Land, Sea, and Air. Volume 1: Turbo Expo 2002. Amsterdam, The Netherlands. June 3–6, 2002. pp. 501-511. ASME. https://doi.org/10.1115/GT2002-30085
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