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2024 Vol.29, Issue 4 Preview Page

Research Article

Numerical Study on Ammonia Injection Strategy to Improve De-NOx Performance for Swirl Burner Fueled with Ammonia

암모니아 스월 버너에서 De-NOx 성능 향상을 위한 암모니아 분사 전략에 대한 수치적 연구

Minhyeok Kim1
,
Jonghyun Kim1
,
Jungsoo Park1†
김 민혁1
,
김 종현1
,
박 정수1†
1Department of Mechanical Engineering, Chosun University
1조선대학교 기계공학과
*Corresponding Author
31 December 2024. pp. 31-43
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Abstract

In order to directly apply ammonia as main fuel, research is being actively conducted on NOx reduction technology, which is the main emission from exhaust gas. When ammonia is used as fuel and simultaneously injected into the combustion chamber not only as a main fuel, but also as a reducing agent, a phenomenon similar to the SNCR effect that reduces NOx can be observed. This study objects to improve NOx reduction efficiency in ammonia swirl burners. To observe changes in performance, analysis was performed by changing the secondary injection of ammonia flow rate and injection angle using CONVERGE. As a result, the NOx reduction efficiency could be observed from approximately 69% to 99% depending on each variable, and the secondary ammonia injection flow rate could be optimized according to the secondary ammonia injection angle.

Keywords
Ammonia combustion
Computational Fluid Dynamics(CFD)
Multi-stage combustion
Nitrogen oxides(NOx)
Selective non-catalytic reduction(SNCR)
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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 :31-43
  • Received Date : 2024-09-11
  • Revised Date : 2024-09-30
  • Accepted Date : 2024-09-30
  • DOI :https://doi.org/10.15231/jksc.2024.29.4.034
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