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气体燃料船用主机工作过程三维数值模拟

DOI: 10.3969/j.issn.1006-7043.201308038

Keywords: 气体燃料, 船用主机, 稀薄燃烧, 燃烧室, 燃空当量比, 点火, 工作过程, 数值模拟

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Abstract:

为了实现高效稀燃,纯气体燃料船用主机需要采取预混合气的"分区控制、湍流激扰"来保证可靠点火和快速火焰传播。设计了某型号气体燃料船用主机的燃烧系统。应用三维CFD软件对其工作过程进行了数值模拟分析,研究了缸内流场变化、燃料-空气混合过程、点火和火焰传播过程,分析了预燃室内燃料加策略。研究为主机的燃烧系统设计和加浓喷射策略设计提供了初始数据支撑。研究结果表明:在点火时刻,主机预燃室内形成了当量比为1.05的稍浓混合气,有利于稳定点火和火焰快速传播;点火后,经由预燃室喷孔喷出的引燃火焰在主燃室内迅速扩展,在50℃A内即完成主燃烧。

References

[1]  Marine Environment Protection Committee. Prevention of air pollution from ships [R]. London: International Maritime Organization, 2009: 71.
[2]  冯立岩. 我国气体燃料大型船用主机的发展策略探讨[J].柴油机,2011,33(5):6-10.FENG Liyan. Development strategy of gas-fuelled marine engine[J]. Diesel Engine, 2011,33(5):6-10.
[3]  CALLAHAN T J, HOAG K. An updated survey of gas engine performance development [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 277.
[4]  SILLANPAEAE H, ASTRAND U. W?rtsil? gas engines-the green power alternative [C]//Proceedings of the 24th CIMAC. Bergen, 2010: Paper No.95.
[5]  HUMERFELT T, JOHANNESSEN E, VAKTSKJOLD E, et al. Development of the Rolls-Royce C26:33 marine gas engine series [C]//Proceedings of the 24th CIMAC. Bergen, 2010: Paper No.54.
[6]  VAKTSKJOLD E, SKARB? L, VALDE K, et al. The new Bergen B35:40 lean burn marine gas engine serie & practical experiences of SI lean burn gas engines for marine mechanical drive [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 417
[7]  KLAUSNER J, TRAPP C, SCHAUMBERGER H, et al. The gas engine of the future-innovative combustion and high compression ratios for highest efficiencies [C]//Proceedings of the 24th CIMAC. Bergen, 2010: Paper No. 312.
[8]  TRAPP C, BIRGEL A, SPYRA N, et al. GE’s all new J920 gas engine-a smart accretion of two-stage turbocharging, ultra lean combustion concept and intelligent controls [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 289.
[9]  SUZUKI H, YOSHIZUMI H, ISHIDA M, et al. MACH II-SI achieved higher thermal efficiency [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 421.
[10]  WATANABE K, GOTO S, HASHIMOTO T. Advanced development of medium speed gas engine targeting to marine and land [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 99.
[11]  SANDER U, MENZEL S, RAINDL M. The new MTU type L64 of series 4000 gas engines [C]//Proceedings of the 25th CIMAC Congress. Shanghai, 2013: Paper No. 67.
[12]  HEYWOOD J. Internal combustion engine fundamentals [M].New York: McGraw-Hill Inc, ISBN 0-07-028637-X, 1988.
[13]  MANIVANNAN A, TAMIL P P, CHANDRASEKARAN S. Lean burn marine gas engine-an overview [C]//SAE 2003 World Congress and Exhibition, Detroit, 2003:Paper No. 2003-01-0638.
[14]  WATSON H, MILKINS E, GOLDSWORTHY L. Optimizing the spark ignition pre-chamber geometry including spark plug configuration for minimum NOx emissions and maximum efficiency [C]//SAE 1982 World Congress and Exhibition. Detroit, 1982:Paper No. 82013.
[15]  ROETHLISBERGER R P, FAVRAT D. Investigation of the prechamber geometrical configuration of a natural gas SI engine for cogeneration part II experimentation [J]. International Journal of Thermal Sciences, 2003, 42:239-253.
[16]  HANJALIC K, POPOVAC M, HADZIABDIC M. A Robust near-wall elliptic-relaxation eddy-viscosity turbulence model for CFD [J]. International Journal of Heat and Fluid Flow, 2004, 26(6):1047-1051.
[17]  CANDEL S, POINSOT T. Flame stretch and the balance equation for the flame area [J].Combustion Science and Technology, 1990, 70(1/2/3):1-15.
[18]  AVL LIST GmbH. ICE Physics & Chemistry, AVL FIRE User Manual v.2008 [M]. Graz: AVL LIST GmbH, 2008.

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