Influence of DC Electric Field on the Propane-Air Diffusion Flames and NO x Formation

Sang-Min Kim, Kyeong-Soo Han and Seung-Wook Baek
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Sang-Min Kim: Accident Monitoring and Mitigation Research Team, Korea Atomic Energy Research Institute, Daejeon 34057, Korea
Kyeong-Soo Han: Department of Aerospace Engineering, University of Michigan, Ann Arbor, MI 48109, USA
Seung-Wook Baek: Department of Aerospace Engineering, Korea Advanced Institute of Science and Technology, Daejeon 34141, Korea

Energies, 2021, vol. 14, issue 18, 1-13

Abstract: The aim of this research is to investigate the effects of a direct current (DC) electric field on the combustion behavior of a co-flow propane diffusion flame. The flame length and NO x emission were observed and measured. The electric field enhances the combustion process of propane diffusion flame by causing the movement of ions and molecules in the flame, resulting in a change in the shape of the flame. The flame heights decrease with an increase in the applied voltage and polarity, a more dominant effect to be observed with a positive DC electric field. However, for the applied negative polarity, the inner-cone of the propane diffusion flame is shifted by the electric field. Drastic reduction in the NO x emission is observed with an increase in the applied DC voltage and polarity. In the existing system, the reduction percentage of NOx is within the range of 55 to 78%.

Keywords: diffusion flame; propane; voltage; polarity; electric field; NO x (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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