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2024 Vol.29, Issue 3

Research Article

Study on the Combustion Characteristics of a Gas Turbine Combustors under Hydrogen Co-firing Conditions

수소 혼합 연소 조건에서 가스터빈 연소기의 연소 특성 연구

Jaebin Lee1
,
Sanghyeon Lee1
,
Byeongmin Ahn1
,
Dowon Kang2
,
Minkuk Kim2
,
Yeseul Park3
,
Misung Choi1†
이 재빈1
,
이 상현1
,
안 병민1
,
강 도원2
,
김 민국2
,
박 예슬3
,
최 민성1†
1Department of Automotive Engineering, Gangneung-Wonju National University
2Department of Carbon-free Power Generation, Korea Institute of Machinery and Materials
3Department of Mechanical Engineering, Mokpo National University
1국립강릉원주대학교 자동차공학과
2한국기계연구원 무탄소발전연구실
3국립목포대학교 기계조선해양공학부
*Corresponding Author
30 September 2024. pp. 1-10
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Abstract

This study focuses on a gas turbine combustor designed for hydrogen co-firing conditions. A single nozzle and combustor were designed based on the industrial model for CFD. The k-ω SST turbulence model and the GRI 3.0 chemical mechanism were adopted to simulate the combustor. Simulation results showed that for unmixedness, there was a common trend of increased unmixedness at the swirler region with varying co-firing ratios, followed by a tendency to decrease. Additionally, even with the same co-firing ratio, there were differences in unmixedness depending on the operating conditions. As for velocity, higher co-firing ratios resulted in increased velocities and smaller internal recirculation zone. In terms of temperature, while the peak temperature rose with higher co-firing ratios, there was minimal difference in temperature distribution changes. For OH concentration, higher co-firing ratios led to higher concentrations and shorter flame length.

Keywords
Gas turbine combustor
Hydrogen co-firing
CFD analysis
Unmixedness
NOX emissions
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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 : 29
  • No :3
  • Pages :1-10
  • Received Date : 2024-07-19
  • Revised Date : 2024-08-22
  • Accepted Date : 2024-08-23
  • DOI :https://doi.org/10.15231/jksc.2024.29.3.001
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