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2024 Vol.29, Issue 4 Preview Page

Research Article

NOx Prediction of a Hydrogen Gas Turbine Combustor using Chemical Reactor Network and Computational Fluid Dynamics

화학 반응기 네트워크와 전산유체해석을 통한 수소 전소 가스터빈 연소기의 NOx 예측

Minjun Choi1
,
Geonryul Lee2
,
Minseok Han3
,
Youngjun Shin3
,
Kee Man Lee2
,
Dong-Hyuk Shin1†
최 민준1
,
이 건률2
,
한 민석3
,
신 영준3
,
이 기만2
,
신 동혁1†
1Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology
2School of Mechanical and Aerospace Engineering/Center for Aerospace Engineering Research, Sunchon National University
3GT Combustor Development Team, Doosan Enerbility
1한국과학기술원 항공우주공학과
2국립순천대학교 기계우주항공공학부/우주항공연구센터
3두산에너빌리티 GT 연소기 개발팀
*Corresponding Author
31 December 2024. pp. 81-89
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Abstract

The NOx emission prediction simulations were conducted and compared with the experimental results. To compare the NOx emission, 3 bar and 8 bar hydrogen combustion experiments were performed using a PPMN nozzle. Also, the chemical reactor network(CRN) and computational fluid dynamics(CFD) simulations were conducted. For the CRN simulation, perfectly stirred reactor(PSR) and plug flow reactor (PFR) were used to simulate the liner and transition piece of the PPMN nozzle. For the CFD simulation, conjugate heat transfer simulation was performed to predict NOx at the domain outlet. Both CRN and CFD simulations showed acceptable prediction capability at the end of the liner and domain outlet which errors were less than 10%. Using the 3 bar and 8 bar NOx results, pressure and NOx correlations were calculated. The NOx data were modeled for conditions up to 14 bar using experimental results, CRN, and CFD. At an operating pressure of 14 bar, modeled NOx error between experimental and simulation results showed less than 15%.

Keywords
Hydrogen
NOx
Simulation
Gas turbine
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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 :4
  • Pages :81-89
  • Received Date : 2024-12-10
  • Revised Date : 2024-12-15
  • Accepted Date : 2024-12-15
  • DOI :https://doi.org/10.15231/jksc.2024.29.4.081
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