全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

合成气燃气轮机燃烧室CFD模拟型选择及优化

DOI: 10.13334/j.0258-8013.pcsee.2015.06.018, PP. 1429-1435

Keywords: 合成气燃气轮机燃烧室,计算流体力学(CFD),湍流模型,火焰结构,NOx排放

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用雷诺平均的计算流体力学方法,通过模拟与燃烧室模态相似的标准旋流扩散燃烧实验以及合成气模型旋流燃烧室实验,分析了4种湍流模型对旋流燃烧及合成气燃烧室的数值模拟结果的影响。对比标准实验的速度、温度以及混合分数等实验数据,讨论不同模型以及参数取值的模拟效果,选取最合适燃烧室内复杂流型预测的realizableκ-ε湍流模型,并对位于湍流动能耗散率(ε)方程源项中的模型常数C2做出修正。耦合相应较为准确的燃烧模型以及反应机理,形成针对合成气燃烧室性能预测的较为理想的模拟方法。开展合成气模型旋流燃烧室燃烧实验,利用形成的数值模拟方法,对燃烧室壁温及NOx排放进行了预测,结果与实验较吻合,验证模拟方法可靠。

References

[1]  张永生,穆克进,张哲巅,等.同向和反向合成气旋流扩散燃烧研究.中国电机工程学报[J].2009,29(14):63-68.Zhang Yongsheng,Mu Kejin,Zhang Zhedian,et al.Study on the co-swirl and counter-swirl combustion of the syngas diluted diffuse flame[J].Proceedings of the CSEE,2009,29(14):63-68(in Chinese).
[2]  Nemitallah M A,Habib M A.Experimetal and numerical investigations of an atmospheric diffusion oxy-combustion flame in a gas turbine model combustor[J].Applied Energy,2013,111(1):401-415.
[3]  Ziani L,Chaker A,Chetehouna K,Malek A.Numerical simulations of non-premixed turbulent combustion of CH 4 -H 2 mixtures using the PDF approach.International Journal of Hydrogen Energy,2013,38(1):8597-8603.
[4]  Fukumoto K,Ogami Y.Combustion simulation technique for reducing chemical mechanisms using look-up table of chemical equilibrium calculations:Application to CO/H 2 /air turbulent non-premixed flame[J].Computers & Fluids,2012,66(1):98-106.
[5]  Rebola A,Coelho P J,Costa M.Assessment of the performance of several turbulence and combustion models in the numerical simulation of a flameless combustor[J].Combustion Science and Technology,2013,185(1):600-626.
[6]  Yilmaz I.Effect of swirl number on combustion characteristics in a natural gas diffusion flame[J].Journal of Energy Resources Technology,2013,135(4):042204_1-042204_8.
[7]  Brizuela E A,Roudsari M Z.Comparison of RANS/CMC modeling of Flame D with conventional and with presumed mapping function statistics[J].Combustion Theory and Modeling,2011,15(5):671-690.
[8]  Khaleghi M,Hosseini S E,Wahid M A.Eission and combustion characteristics of hydrogen in vortex flame[J].Science & Engineering,2014,66(2):47-51.
[9]  刘富强,穆勇,房爱兵,等.双级旋流环形燃烧室流场的数值分析与实验研究[J].工程电机工程学报,2012,32(8):28-36.Liu Fuqiang,Mu Yong,Fang Aibing,et al.Numerical analysis and experiment research on flow field of an annular combustor with a dual-stage swirler[J].Proceeding of the CSSEE,2012,32(8):28-36(in Chinese).
[10]  Arghode V K,Gupta A K.Effect of flow field for colorless distributed combustion(CDC)for gas turbine combustion[J].Applied Energy,2010,87(1):1631-1640.
[11]  Khalil A E,Gupta A K.Swirling flowfield for colorless distributed combusion[J].Applied Energy,2014,113(1):208-218.
[12]  田晓晶,崔玉峰,房爱兵,等.预混段结构与氢燃料旋流预混燃烧诱导涡破碎回火极限影响的数值研究[J].中国电机工程学报,2014,34(8):1276-1284.Tian Xiaojing,Cui Yufeng,Fang Aibing,et al.Numerical inestigation on the effects of mixing zone structure on combustion induced nortex breakdown flashback limits of a swirl-premixed hydrogen flame[J].Proceeding of the CSSEE,2014,34(8):1276-1284(in Chinese).
[13]  Cuoci A,Frassoldati A,Buzzi Ferraris G,Faravelli T,Ranzi E.The ignition,combustion and flame structure of carbon monoxide/hydrogen mixtures.Note 2:Fluid dynamics and kinetic aspects of syngas combustion[J].International Journal of Hydrogen Energy,2007,32(15):3486-3500.
[14]  Pope S B.An explanation of the round jet/plane jet Anomaly[J].AIAA Journal,1978,16(3):279-81.
[15]  Khaleghi M,Hosseini S E,Mohsin M,Wahid M A.Computational and experimental investigations of turbulent asymmetric vortex flames[J].Internationl Communications in Heat and Mass Transfer,2011,38(1):353-362.
[16]  Hossain M,Jones J C,Malalasekera W.Modeling of a bluff-body non-premixed flame using a coupled radiation/flamelet combustion model[J].Flow,Turbulence and Combustion,2001,67(1):217-234.
[17]  Lefebvre A H,Ballal D R.Gas turbine combustion[M].New York:CRC Press,2010:1-33.
[18]  Al-Abdeli Y,Masri A.Recirculation and flowfield regimes of unconfined non-reacting swirling flows[J].Experimental Thermal and Fluid Science,2003,27(1):655-665.
[19]  Kalt P,Al-Abdeli Y,Masri A,Barlow R.Swirling turbulent non-premixed flames of methane:flow field and compositional structure[J].Proceedings of the Combustion Institute,2002,29(1):1913-1919.
[20]  姚强,李水清,王宇.燃烧学导论(第二版)[M].北京:清华大学出版社,2009:126-134.Yao Qiang,Li Shuiqing,Wang Yu.An introduction to combustion concepts and applications(second edition)[M].Beijing:Tsinghua University Press,2009:126-134(in Chinese).
[21]  李晓宇,游小清.在可行域内优化H 2 /CO燃烧化学反应模型[C]//中国工程热物理学会燃烧学学术会议论文集:北京,2012.Li Xiaoyu,You Xiaoqing.Optimize kinetic model of H 2 /CO combustion on feasible range[C]//Chinese National Conference of Engineer Thermophysics,Beijing,2012(in Chinese).
[22]  Faravelli T,Frassoldati A,Ranzi E.Kinetic modeling of the interactions between NO and hydrocarbons in the oxidation of hydrocarbons at low temperatures[J].Combustion and Flame,2003,132(1):188-207.
[23]  Faravelli T,Frassoldati A,Ranzi E.Kinetic modeling of the interactions between NO and hydrocabons at high temperature[J].Combustion and Flame,2003,135(1):97-112.
[24]  Vondal J,Hajek J.Swirling flow prediction in model combustor with axial guide vane swirler[J].Chemical Engineering Transactions,2012,29(1):1069-1074.
[25]  张智博,郑洪涛,赵煜.湍流燃烧模型对某燃气轮机燃烧室性能计算的影响[J].燃气轮机技术,2013,26(4):17-22.Zhang Zhibo,Zheng Hongtao,Zhao Yu.Effects of turbulence combustion models on performance of the gas turbine combustor[J].Gas Turbine Technology,2013,26(4):17-22(in Chinese).
[26]  Lilleberg B,Christ D,Ertevag I S,Rian K E,Kneer R.Numerical simulation with an extinction database for use with the eddy dissipation concept for turbulent combustion[J].Flow Turbulence Combust,2013,91(1):319-346.
[27]  Georgiadis N J,Yoder D A,Engblom W A.Evaluation of modified two-equation turbulence models for jet flow predictions[C]//The 44th AIAA Aerospace Sciences Meeting and Exhibit,Reno,Nevada,2006.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133