KOREASCHOLAR

In this study used Computational Fluid Dynamic analysis to examine NOx reduction in hydrogen combustion, analyzing six conditions with varying air/fuel ratios, temperatures, and concentrations. Results were compared between two combustor shapes and previous experimental data. Findings showed increased air/fuel ratios decreased flame temperature and increased post-combustion O2. NOx emissions peaked at high temperatures and low O2. Numerical results aligned with previous experimental trends, validating the approach. Combustor shape differences, reflecting variations in fuel and air pipes, significantly affected flow rates and combustion positions. This reduced NOx emissions up to a certain air/fuel ratio, but excessive increases diminished this effect. The study highlights the complex relationship between combustor design, operating conditions, and NOx emissions. Further research is needed to optimize NOx reduction by considering pipe numbers and combustion locations. Future studies should explore various combustor geometries, fine-tune air/fuel ratios, and investigate additional parameters influencing NOx formation and reduction in hydrogen combustion systems.

Abstract
1. 서 론
2. 전산유체역학 해석 조건
    2.1 형상 및 격자
    2.2 경계조건 및 연소 모델
3. 결과 및 분석
    3.1 실험과 CFD 해석 결과 비교
    3.2 Case 1 및 Case 2 CFD 해석 결과
4. 결 론
후 기
References

• 최락준(Research Institute of Science & Technology, Pohang) | Rak-Jun Choi
• 김규보(Research Institute of Science & Technology, Pohang) | Gyu-Bo Kim
• 임호(Research Institute of Science & Technology, Pohang) | Ho Lim
• 허정기(Research Institute of Science & Technology, Pohang) | Jung-Gi Heo
• 오혁진(Research Institute of Science & Technology, Pohang) | Hyuk-Jin Oh
• 김설하(Kyungpook National University, Associate Professor) | Seol-Ha Kim
• 권종서(Plantec) | Jong-Seo Kwon
• 김량균(Research Institute of Science & Technology, Pohang) | Ryang-Gyoon Kim Corresponding author