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2024 Vol.29, Issue 2 Preview Page

Research Article

Hydrogen Co-Firing Simulation of an F-class Gas Turbine Combustor Nozzle

F급 가스터빈 연소기 노즐 수소 혼소 전산해석

Nakjeong Choi1†
,
Sanghyup Lee1
,
Seik Park1
,
Jungkeuk Park1
최 낙정1†
,
이 상협1
,
박 세익1
,
박 정극1
1KEPCO Research Institute
1한국전력공사 전력연구원
*Corresponding Author
30 June 2024. pp. 27-36
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Abstract

Research on hydrogen co-firing gas turbines is actively progressing to achieve carbon neutrality. This study performed Computational Fluid Dynamics (CFD) analysis on a current F-class gas turbine nozzle to assess the feasibility of hydrogen co-firing and enhance asset utilization. Reynolds-Averaged Navier-Stokes (RANS) simulations were employed to analyze combustion characteristics up to a hydrogen co-firing rate of 70%, using the Flamelet Generated Manifold (FGM) model and GRI3.0 mechanism. The simulations accurately predicted the reaction zone, flame length, flame shape, and changes in the recirculation flow induced by increased hydrogen reactivity. However, discrepancies in Heat Release Rate (HRR) due to adiabatic wall boundary conditions in the simulation led to deviations from experimental results, affecting the flame shape and the length, particularly impacting NO predictions above a 50% hydrogen co-firing ratio. The findings of this study can provide fundamental insights for future demonstrations of hydrogen in existing F-class gas turbine combustors.

Keywords
Gas turbine
Hydrogen co-firing with methane
Computational fluid dynamics
Flamelet generated manifold
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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 :2
  • Pages :27-36
  • Received Date : 2024-06-05
  • Revised Date : 2024-06-16
  • Accepted Date : 2024-06-16
  • DOI :https://doi.org/10.15231/jksc.2024.29.2.027
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