연소 연료 및 재순환율에 따른 복사열관 가열 시스템의 성능 및 NOx 저감 효과 연구
Effect of Combustion Fuel Type and Recirculation Rate on of Radiant Tube Heating System and NOx Reduction
This study investigates nozzle diameter and fuel type effects on combustion characteristics and NOx emissions in radiant tube heating systems through numerical simulation. Four fuels were analyzed: LPG, natural gas, coke oven gas, and hydrogen under varying nozzle conditions using computational fluid dynamics with energy conservation, species transport, and thermal NOx formation models. Results show that nozzle diameter optimization significantly enhances internal recirculation, improving fuel-air mixing and reducing NOx formation. Hydrogen exhibits higher flame temperatures, potentially increasing thermal NOx generation, but optimal nozzle design controls this effect through enhanced mixing patterns. The optimized configuration achieved substantial NOx reduction while maintaining combustion stability across all tested fuels.
목차
Abstract 1. 서론 2. 전산유체역학 해석 준비 2.1 형상 및 격자 2.2 경계조건 3. 결과 및 분석 3.1 노즐 직경에 따른 결과 3.2 연료 종류에 따른 결과 4. 결론 후기 References
키워드
노즐 직경수소전산유체역학 해석질소산화물재순환Nozzle DiameterHydrogenComputational Fluid Dynamic AnalysisNOx emissionFlue Gas Recirculation
저자
최락준 [ Rak-Jun Choi | Department of Precision Mechanical Engineering, Kyungpook National University ]
노현석 [ Noh Hyeon Seok | Research Institute of Science & Technology, Pohang ]
김설하 [ Seol-Ha Kim | Department of Precision Mechanical Engineering, Kyungpook National University ]
권종서 [ Jong-Seo Kwon | Plantec ]
김량균 [ Ryang-Gyoon Kim | Research Institute of Science & Technology, Pohang ]
Corresponding Author