2026-03-08T03:39:10Z https://gunma-u.repo.nii.ac.jp/oai

oai:gunma-u.repo.nii.ac.jp:00003276 2023-06-19T13:06:30Z 572:575:576

Feasibility Study on a Low NO_x Combustion with Forced Recirculation Flow Formed by an Upward Swirl 遡上スワールにより形成された強制循環流を活用する低NO_x燃焼の検討 Feasibility Study on a Low NO_x Combustion with Forced Recirculation Flow Formed by an Upward Swirl 天野, 俊輔 7891 新井, 雅隆 7892 Combustion Gas Turbine Swirl Combustor Spray Combustor Low NO_x Combustion Upward Swirl Computational Fluid Dynamics (CFD) Bunt Gas Recirculation (BGR) application/pdf Journal Article A new concept of combustion liquid fuel suitable for Gas Turbine combustor was investigated. Combustion in high temperature and low oxgen concentration by Burnt Gas Recirculation (BGR/FGR/EGR) is an important technology for low NO_χ combustion of liquid fuel. Upward swirl was focused to produce forced recirculation flow of burnt gas. A combined method of analytical approach (Computational Fluid Dynamics: CFD) and experimental approach was used. Flow pattern produced by the upward swirl introduced into combustion zone from the direction of combustion zone exit was investigated. CFD showed that a kind of guide vanes to produce flow to inside of radial direction at the top of combustion zone had important role for the upward swirl to recirculate fully to the top of combustion zone. A prototype combustor with the design based on results of CFD with and without combustion was made and tested. Non-luminous flame was observed at lean combustion condition. These results showed that this new concept of the primary zone had a high potential as a low NO_χ combustion technology of liquid fuel. journal article 日本機械学会 2006-06-25 2017-03-27 VoR application/pdf 日本機械学會論文集. B編 718 72 1619 1626 0387-5016 AN00187441 https://gunma-u.repo.nii.ac.jp/record/3276/files/B72_1619.pdf http://hdl.handle.net/10087/2515 https://gunma-u.repo.nii.ac.jp/records/3276 jpn http://ci.nii.ac.jp/naid/110004758307/ 日本機械学会 本文データは学協会の許諾に基づきCiNiiから複製したものである