Experiment on combustion characteristics of aeroderivative gas turbine twins annular combustor

被引：0
|
作者：
Liu A. [1 ]
Zhu Y. [1 ]
Chen B. [1 ]
Liu K. [1 ]
Zeng W. [1 ]
Wang C. [1 ]
机构：
[1] Faculty of Aerospace Engineering, Shenyang Aerospace University, Shenyang
来源：
Chen, Baodong | 1793年 / Beijing University of Aeronautics and Astronautics (BUAA)卷 / 32期
关键词：
Center staged; Combustion efficiency; Ignition; Lean blow-out performance; Twins annular premixed swirler combustor;
D O I：
10.13224/j.cnki.jasp.2017.08.001
中图分类号：
学科分类号：
摘要：
The reaction characteristics of a kind of twins annual premixed swirler(TAPS) combustor were studied using No.0 diesel as fuel in order to satisfy the requirement of low emission of gas turbine for ground transportation. The results showed that, the total pressure recovery coefficient of the TAPS combustor reached more than 0.97, higher than classical single annual combustor due to the changes in air distribution characteristics. The minimum atmospheric ignition fuel-air ratio over 0.05 was higher than that using the aviation kerosene as fuel with the same combustor structure due to the influence of viscosity and flash point, but idle lean blow-out limit had no obvious change between 0.006 and 0.008. The fuel mixing was nonuniform due to pressure atomization at the pilot stage, which caused the lower combustion efficiency 0.99, but the outlet temperature distribution factor was less than 0.25, which can meet the requirement. For the pollution emissions, NOx dry volumn fraction was 1.76×10-5 significantly lower than the required index, but the CO dry volumn fraction was higher up to 5.02×10-4 due to use of the premixed pre-evaporation combustion. Through comprehensive comparison of various performance indicators, the combustor has advantages in ignition, lean blow-out, combustor outlet temperature distribution and NOx emissions, but the lower combustion efficiency and higher CO emission are still problems to be solved. © 2017, Editorial Department of Journal of Aerospace Power. All right reserved.
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页码：1793 / 1800
页数：7
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