Experimental Study of the Hydrogen Co-Firing Characteristics on the Gas Turbine Combustor and Operational Stability Assessment

Jungkeuk Park; Inwoo Hwang; Sobin Oh; Hyuckjun Jang; Karam Han; Nakjeong Choi; Yunjin Kim

doi:10.15231/jksc.2025.30.3.044

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2025 Vol.30, Issue 3 Preview Page

Research Article

Experimental Study of the Hydrogen Co-Firing Characteristics on the Gas Turbine Combustor and Operational Stability Assessment 운영중 가스터빈 대상 수소혼소 특성 및 운영 안정성 시험 평가

30 September 2025. pp. 44-52

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Abstract

Hydrogen is a key fuel for reducing greenhouse gas emissions in the gas turbine sector, but its combustion characteristics differ from natural gas and may impair combustor stability. Power producers are considering its applicability, although assessing co-firing limits remains largely within OEMs. In this study, hydrogen co-firing tests were conducted under atmospheric conditions to evaluate combustion characteristics and stable operating limits. As the hydrogen ratio increased, nitrogen oxide concentrations rose while carbon monoxide decreased, and combustion dynamics exhibited pronounced low-frequency variations. The surface temperature of combustor hot-section components also showed location-dependent behavior.

Keywords

Gas turbine

Hydrogen co-firing

Combustion dynamics pressure

NOx

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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 : 30
No :3
Pages :44-52
Received Date : 2025-09-09
Revised Date : 2025-09-17
Accepted Date : 2025-09-17
DOI :https://doi.org/10.15231/jksc.2025.30.3.044

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

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