Analysis of the Effects of Pressure and Unmixedness on NOx Emissions in a Model Gas Turbine Combustor

Yuangang Wang; Soon Been Park; Chae Hoon Sohn

doi:10.15231/jksc.2023.28.3.036

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2023 Vol.28, Issue 3 Preview Page

Research Article

Analysis of the Effects of Pressure and Unmixedness on NOx Emissions in a Model Gas Turbine Combustor 모형 가스터빈 연소기에서 NOx 배출량에 미치는 압력 및 비혼합도 효과 분석

30 September 2023. pp. 36-42

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Abstract

Pressure effects on NOx emission in a gas turbine combustor are numerically investigated in the present study. Initially, fully premixed flame condition with air and fuel injection at the combustor inlet is examined. Increasing pressure leads to a 0.08% rise in flame temperature and a significant 30% increase in NOx emissions. Technically premixed flame condition is then conducted. NOx emissions rise from 1.3 to 3 bar but decline beyond 3 bar due to combined pressure and mixing effects. Applying the NOx emission calibration formula, which accounts for pressure-induced changes while eliminating mixing influence, reveals a direct link between increased pressure and higher NOx emissions.

Keywords

Gas turbine combustor

NOx emission

Pressure effect

Unmixedness

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Information

Publisher :The Korean Society of Combustion
Publisher(Ko) :한국연소학회
Journal Title :Journal of the Korean Society of Combustion
Journal Title(Ko) :한국연소학회지
Volume : 28
No :3
Pages :36-42
Received Date : 2023-06-19
Revised Date : 2023-08-17
Accepted Date : 2023-09-04
DOI :https://doi.org/10.15231/jksc.2023.28.3.036

Journal of the Korean Society of Combustion ISSN:1226-0959(Print) 2466-2089(Online) 한국연소학회지

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