An Improved Semi-Empirical Correlation for Prediction of Lean Blowout Limits for Gas Turbine Combustors Using Gas Fuel

Journal of Propulsion Technology ›› 2015, Vol. 36 ›› Issue (11): 1677-1685.

• Combustion , Heat and Mass Transfer • Previous Articles Next Articles

An Improved Semi-Empirical Correlation for Prediction of Lean Blowout Limits for Gas Turbine Combustors Using Gas Fuel

National Key Laboratory of Aerodynamics & Thermodynamics on Aero-Engine，Beijing University of Aeronautics and Astronautics，Beijing 100191，China,National Key Laboratory of Aerodynamics & Thermodynamics on Aero-Engine，Beijing University of Aeronautics and Astronautics，Beijing 100191，China,National Key Laboratory of Aerodynamics & Thermodynamics on Aero-Engine，Beijing University of Aeronautics and Astronautics，Beijing 100191，China and National Key Laboratory of Aerodynamics & Thermodynamics on Aero-Engine，Beijing University of Aeronautics and Astronautics，Beijing 100191，China

Published:2021-08-15

改进的预测气体燃料贫油熄火边界的半经验公式

孙磊,黄勇,张鼎,肖为

北京航空航天大学航空发动机气动热力重点实验室，北京 100191,北京航空航天大学航空发动机气动热力重点实验室，北京 100191,北京航空航天大学航空发动机气动热力重点实验室，北京 100191,北京航空航天大学航空发动机气动热力重点实验室，北京 100191

作者简介:孙磊(1988—)，男，博士生，研究领域为航空发动机燃烧。

Abstract

Abstract: In order to further investigate the applicability of Flame Volume (FV) model for predicting lean blowout limits of gas fuels，FV-model for gas fuels is deduced. To validate this model，experiments are conducted on 7 typical aircraft engine combustors (adopting dual-radial swirl-stabilized assembly and dual-axial swirl-stabilized assembly，changing flow area of primary swirler and secondary swirler and number of primary holes，respectively). The results predicted by gas fuel FV-model are compared with the results by liquid fuel FV-model and Lefebvre model. It verified that aforementioned 3 models can predict lean blowout for gas fuels，while respective predictive accuracies are slightly different. Within the limit of these experiments，the predictive accuracies of gas fuel FV-model，liquid fuel FV-model，Lefebvre model are [±]5.6%，[±]6.9%，[±]7.1%，respectively. In conclusion，gas fuel FV-model has best accuracy to predict lean blowout limits for gas fuel.

Key words: Gas turbine combustor；Gas fuels；Prediction of lean blowout limits； FV-model for gas fuels

摘要： 为了进一步考察采用气体燃料时，火焰体积(FV)模型对贫油熄火边界预测的适用性，推导了气体燃料的FV模型。经过对7种典型的航空发动机燃烧室(即采用双径向旋流器和双轴向旋流器，分别改变一级旋流器、二级旋流器的进气面积和主燃孔的个数)进行验证实验，并与液体燃料FV模型和Lefebvre模型的预测结果进行比较。结果表明，上述三种模型虽然基本都可以用于气体燃料贫油熄火边界的预测，但各自的预测精度不同。在实验范围内，气体燃料FV模型、液体燃料FV模型、Lefebvre模型的预测精度依次为[±]5.6%，[±]6.9%，[±]7.1%。气体燃料FV模型在预测气体燃料的贫油熄火边界时有最好的预测精度。

关键词: 燃气轮机燃烧室；气体燃料；贫油熄火边界预测；气体燃料FV模型

SUN Lei,HUANG Yong,ZHANG Ding,XIAO Wei. An Improved Semi-Empirical Correlation for Prediction of Lean Blowout Limits for Gas Turbine Combustors Using Gas Fuel[J]. Journal of Propulsion Technology, 2015, 36(11): 1677-1685.

孙磊,黄勇,张鼎,肖为. 改进的预测气体燃料贫油熄火边界的半经验公式[J]. 推进技术, 2015, 36(11): 1677-1685.

References

[1] 胡斌. 基于数值模拟的航发燃烧室熄火研究[D]. 北京:北京航空航天大学, 2012.
[2] 廉筱纯, 吴虎. 航空发动机原理[M]. 西安:西北工业大学出版社, 2011.
[3] 黄勇. 燃烧与燃烧室[M]. 北京:北京航空航天大学出版社, 2009.
[4] Lance L Smith, Zhongtao Dai. Advanced Combustor Concepts for Low Emissions Supersonic Propulsion[J]. Journal of Engineering for Gas Turbines and Power,2013, 135(5).
[5] Gokulakrishnan P, Ramotowski M J, Gaines G, et al. A Novel Low NO_x Lean, Premixed ,and Prevaporized Combustion System for Liquid Fuels[J]. Journal of Engineering for Gas Turbines and Power, 2008, 130(5).
[6] Alan H Epstein. Aircraft Engines’ Needs from Combustion Science and Engineering[J]. Combustion and Flame, 2012, 159: 1791-1792.
[7] Longwell J P, Frost E E, Weiss M A. Flame Stability in Bluff Body Recirculation[J]. Journal of Industrial and Engineering Chemistry, 1953, 45(8): 1629-1633.
[8] Zukowski E E, Marble F E. The Role of Wake Transition in the Process of Flame Stabilization on Bluff Bodies[J]. AGARD Combustion Researches and Reviews, 1955, 167-180.
[9] Ballal D R, Lefebvre A H. Weak Extinction Limits of Turbulent Flowing Mixtures[J]. Journal of Engineering for Power, 1979, 101: 343-348.
[10] Ballal D R, Lefebvre A H. Weak Extinction Limits of Turbulent Heterogeneous Fuel/Air Mixtures[J]. Journal of Engineering for Power, 1980, 102: 416-421.
[11] Lefebvre A H. Fuel Effects on Gas Turbine Combustion-Ignition,Stability,and Combustion Efficiency[J]. Journal of Engineering for Gas Turbines and Power, 1985, 107(1): 24-37.
[12] Mellor A M. Design of Modern Turbine Combustors[M]. New York: Academic Press, 1990.
[13] Ateshkadi A, McDonell V G, Samuelsen G S. Lean Blowout Model for A Spray-Fired Swirl-Stabilized Combustor[J]. Proceedings of the Combustion Institute, 2000, 28: 1281-1288.
[14] Ateshkadi A. The Effect of Fuel/Air Mixer Design Parameters on the Continuous and Discrete Phase Structure in the Reaction-Stabilizing Region[D]. Irvine: Univ.of California, Irvine, 2000.
[15] Rizk N K, Mongia H C. Gas Turbine Combustor Design Methodology[R]. AIAA 86-1531.
[16] Rizk N K, Mongia H C. Three-Dimensional Combustor Performance Validation with High-Density Fuels[J]. Journal of Propulsion and Power, 1991, 6(5): 660-667.
[17] Mongia H C. A Simple Reactor-Based Approach for Correlating Lean Blowout of Turbo-Propulsion Engine Combustor[R]. AIAA 2001-3420.
[18] Igor V Novosselov, Philip C Malte. Development and Application of an Eight-Step Global Mechanism for CFD and CRN Simulations of Lean-Premixed Combustor[R].ASME 2007-GT-27990.
[19] Rizk N K, Mongia H C. Three-Dimensional Analysis of Gas Turbine Combustors[J]. Journal of Propulsion and Power,1991, 7(3): 445-451.
[20] Fa Xie, Yong Hang, Wang Fang, et al. Visualization of the Lean Blowout Process in a Combustor with Swirl Cup[R]. ASME 2010-GT-22534.
[21] Xie F, Huang Y, Hu B, et al. Improved Semi-Empirical Correlation to Predict Lean Blowout Limits for Gas Turbine Combustors[J]. Journal of Propulsion and Power, 2012, 28(1): 197-203.
[22] Bin HU, Yong HUANG, Fang WANG, et al. FIA Method for LBO Limit Predictions of Aero-Engine Combustors Based on FV Model[J]. Chinese Journal of Aeronautics, 2013, 26(1): 74–84.
[23] 胡斌, 黄勇, 王方, 等. 基于冷态数值模拟的航空发动机燃烧室贫油熄火预测[J]. 推进技术, 2012, 33(2): 232-238. (HU Bin, HUANG Yong, WANG Fang, et al. Lean Blow-Out Prediction of Aero-Engine Combustor Based on Cold Flow Field Numerical Simulation[J]. Journal of Propulsion Technology, 2012, 33(2): 232-238.)
[24] Lefebvre A H. Gas Turbine Combustion[M]. New York: McGraw-Hill Book Company, 2010.
[25] 谢法. 航发燃烧室贫熄实验及控制技术研究[D]. 北京:北京航空航天大学, 2012.
[26] N Ashgriz. Handbook of Atomization and Sprays[M].London: Springer New York Dordrecht Heidelberg, 2011.
[27] Rizkalla A, Lefebvre A H. The Influence of Air and Liquid Properties on Air Blast Atomization[J]. ASME Journal of Fluid Engineering, 1975, 97.
[28] Arthur H Lefebvre. Atomization and sprays[M]. New York: Hemisphere Publishing Corporation, 1989.(编辑:朱立影)　　　　　　　　　　　　　*　收稿日期:2014-07-11；修订日期:2014-09-16。作者简介:孙磊(1988—),男,博士生,研究领域为航空发动机燃烧。E-mail: sunleimxm@126.com

An Improved Semi-Empirical Correlation for Prediction of Lean Blowout Limits for Gas Turbine Combustors Using Gas Fuel

改进的预测气体燃料贫油熄火边界的半经验公式

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 0

Recommended Articles

Metrics

Comments