Experimental study on fuel-staging in a lean premixed combustor with multi-points injection for aeroderivative gas turbine

被引：0

作者：

Sun F. ^{[1
,2
]}

Pan J. ^{[1
]}

Guo L. ^{[1
]}

Li J. ^{[3
]}

Ma H. ^{[3
]}

Suo J. ^{[1
]}

机构：

[1] School of Power and Energy, Northwestern Polytechnical University, Xi’an

[2] AECC Hunan Aviation Powerplant Research Institute, Zhuzhou

[3] AECC Shenyang Engine Research Institute, Shenyang

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2024年 / 45卷 / 03期

关键词：

Aeroderivative gas turbine; Fuel-staging; Lean premixed combustion; Low emis⁃ sion; Multi-point injection;

D O I：

10.13675/j.cnki.tjjs.2208023

中图分类号：

学科分类号：

摘要：

To ensure that the NOx and CO emissions of the multi-points injection lean premixed combustor in the range of 50%~100% loads all meet the emission demands，the effects of fuel-staging number，fuel-staging ratios under different loads，inlet pressure and inlet temperature on NOx and CO emissions for seven-injectors combustor were studied experimentally. The experimental results indicate that when adopting no fuel-staging scheme for main fuel，the CO emissions under 50%~60% loads are both high and do not meet the standard. With the double fuel-staging scheme for main fuel ，the emissions of NOx and CO within the range of 50%~100% loads all meet the demands of fNOx≤25×10-6，fCO≤50×10-6（@15% O2），and 70% load is the transition load point for opening the second-stage main fuel. As the inlet pressure and temperature increasing，the range of Rpilot（Rpilot is the ratio of pilot fuel mass flow to total fuel mass flow），at which the NOx and CO could both satisfy the emissions demands，gradually decreased. In addition，the fNOx relation with p3 is shown as fNOx∝p30.44. Therefore，with the double fuel-staging scheme for main fuel and appropriate adjustment of Rpilot，the NOx and CO emissions of the multi-points injection lean premixed combustor in this paper can meet demands for aeroderivative and land-based gas turbine combustor at present. © 2024 Journal of Propulsion Technology. All rights reserved.

引用

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