Experiment on premixed turbulent combustion characteristics of natural gas

被引：0
|
作者：
Chen X. [1 ]
Zeng W. [1 ]
Dang J. [1 ]
Hu E. [2 ]
Ma H. [3 ]
机构：
[1] School of Aero-engine, Shenyang Aerospace University, Shenyang
[2] State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an
[3] Shenyang Engine Research Institute, Aero Engine Corporation of China, Shenyang
来源：
Hangkong Dongli Xuebao/Journal of Aerospace Power | 2023年 / 38卷 / 04期
关键词：
flame wrinkle ratio; natural gas; turbulent combustion bomb; turbulent combustion speed; turbulent flame propagation speed;
D O I：
10.13224/j.cnki.jasp.20210522
中图分类号：
学科分类号：
摘要：
In order to gain the premixed turbulent combustion characteristics of natural gas, the premixed turbulent combustion flame propagation characteristics of natural gas at the conditions of the equivalence ratios range of 0.7− 1.4, the initial pressures range of 0.1− 0.3 MPa, the initial temperatures range of 300− 400 K, and the turbulence intensities range of 1.0− 2.7 m/s were experimentally tested in the turbulent combustion bomb. Furthermore, the influences of equivalence ratio, turbulence intensity, initial temperature, and initial pressure on the turbulent flame propagation speed, flame wrinkle ratio and turbulent combustion speed of natural gas were investigated. The results showed that the turbulent flame propagation speeds of natural gas increased and then decreased with the increase of equivalence ratio, and reached the maximum at equivalence ratio of 1.1. With the increase of turbulence intensity and initial temperature, the turbulent flame propagation speed gradually increased. However, with the increase of initial pressure, the turbulent flame propagation speed varied slightly. With the increase of turbulence intensity and initial pressure, or the decrease of equivalence ratio and initial temperature, the flame wrinkle ratio gradually increased. With the increase of equivalent ratio, the turbulent combustion speeds increased first and then decreased, and reached the maximum at equivalent ratio of 1.1. With the increase of the turbulence intensity, initial temperature and pressure, the turbulent combustion speeds gradually increased. © 2023 BUAA Press. All rights reserved.
引用
收藏
页码：795 / 805
页数：10
相关论文
共 20 条
  • [1] WEI Shuming, SUO Jianqin, Aero-derivative industrial gas turbine dual fuel lean premixed low emission combustion technology, Journal of Aerospace Power, 30, 9, pp. 2049-2057, (2015)
  • [2] BULAT G, JONES W P, MARQUIS A J., NO and CO formation in an industrial gas-turbine combustion chamber using LES with the Eulerian sub-grid PDF method, Combustion and Flame, 161, 7, pp. 1804-1825, (2014)
  • [3] ALMEIDA D S, LACAVA P T., Analysis of pollutant emissions in double-stage swirl chamber for gas turbine application, Energy Procedia, 66, pp. 117-120, (2015)
  • [4] LYRA S, CANT R S., Analysis of high pressure premixed flames using equivalent reactor networks for predicting NOx emissions, Fuel, 107, 9, pp. 261-268, (2013)
  • [5] STARIK A M, KOZLOV V E, Et al., Application of reactor net models for the simulation of gas-turbine combustor emissions, International Journal of Sustainable Aviation, 1, 1, pp. 43-57, (2014)
  • [6] KUMAR K, SUNG C J，, HUI X., Laminar flame speeds and extinction limits of conventional and alternative jet fuels, Fuel, 90, 3, pp. 1004-1011, (2011)
  • [7] BOSSCHAART K J，, LPH D G., The laminar burning velocity of flames propagating in mixtures of hydrocarbons and air measured with the heat flux method, Combustion and Flame, 136, 3, pp. 261-269, (2004)
  • [8] WEISS M，, ZARZALIS N, SUNTZ R., Experimental study of Markstein number effects on laminar flamelet velocity in turbulent premixed flames, Combustion and Flame, 154, 4, pp. 671-691, (2008)
  • [9] DRISCOLL J F., Turbulent premixed combustion: flamelet structure and its effect on turbulent burning velocities, Progress in Energy & Combustion Science, 34, 1, pp. 91-134, (2008)
  • [10] KOBAYASHI H, SEYAMA K, Et al., Burning velocity correlation of methane/air turbulent premixed flames at high pressure and high temperature, Proceedings of the Combustion Institute, 30, 1, pp. 827-834, (2005)
12