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Fluidic Characteristics of Precessing Jet Nozzle Combustor  

Lee, Hye-Young ((주)씨엔스페이스 연구소)
Huh, Hwan-Il (충남대학교 항공우주공학과)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.11, no.4, 2007 , pp. 1-9 More about this Journal
Abstract
Many processing companies are facing environmental regulations such as decreasing NOx emissions when they by to increase thermal efficiencies of combustor. We study a potential new method that may achieve both increase of thermal efficiency and decrease of NOx emissions. This new concept of burner, the precessing jet burner, is known to significantly reduce pollutants such as NOx emissions and simultaneously increase radial heat transfer. This precessing jet nozzle may increase the combustion efficiency of gas turbine engine. A basic research on characteristics of precessing jet nozzle has been conducted using FLUENT and laser visualization technique. Velocities at He nozzle cross-section are compared with the published experimental results. Precessing jet nozzle with centerbody results in better precessing phenomena.
Keywords
Precessing Jet; Reattachment; Swirl flow; NOx;
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1 G. J. Nathan, S. J. Hill and R. E. Luxton, "An Axisymmetric 'Fluidic' Nozzle to Generate Jet Precession", The Journal of Fluid Mechanics, Vol. 370, 1998, pp. 347-380   DOI   ScienceOn
2 서정원, 축열식 산소부화연소기의 질소산화물(NOx) 저감 방법에 관한 실험적 연구, 충남대학교 석사학위논문, 2002
3 Luxton, R. E., Nathan, G. J. and Luminis Pty. Ltd., "Mixing of Fluids", Australian Patent Office, Patent Application NO. 16235/88, International Patent Application NO. PCT/AU88/00114, 1988
4 C. Y. Wong, P. V. Lanspeary, G. J. Nathan, R. M. Kelso and T. O'Doherty, "Phase Averaged Velocity Field Within a Fluidic Precessing Jet Nozzle", 14th Australasian Fluid Mechanics Conference, 10-14 December 2001
5 류승협, 서정무, 박용국, 이근선, 문수연, 이충원, "난류발생기가 장착된 선회기를 이용한 연소기내의 혼합 및 연소 특성," 한국추진공학회지, 제5권 제4호, 2001, pp.83-93
6 이혜영, 에너지절약용 세차제트 노즐의 유동특성에 대한 연구, 충남대학교 석사학위논문, 2002
7 김형모, 박영일, 박부민, 양수석, "55kW급 마이크로 터빈용 저공해 연소기 개발," 한국추진공학회 춘계학술대회 논문집, 2005, pp. 318-321
8 Nathan, G. J., Turns, S. R. and Bandaru, R. V., "The Influence of Jet Precession on NOx Emissions and Radiation from Turbulent Flames", Combust. Sci. and Technol., Vol. 112, 1996, pp.211-230   DOI   ScienceOn
9 Nathan. G. J., "The Enhanced Mixing Burner", PhD Thesis, The Department of Mechanical Engineering, The University of Adelaide, 1988