Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Characteristics of the Microwave Induced Flames on the Stability and Pollutant Emissions

마이크로파가 인가된 화염에서의 화염안정성 및 오염물질 배출특성

  • Jeon, Young Hoon (Department of Safety Engineering, Pukyong National University) ;
  • Lee, Eui Ju (Department of Safety Engineering, Pukyong National University)
  • 전영훈 (부경대학교 안전공학과) ;
  • 이의주 (부경대학교 안전공학과)
  • Received : 2014.04.23
  • Accepted : 2014.07.24
  • Published : 2014.08.31
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Abstract

The use of electromagnetic energy and non-equilibrium plasma for enhancing ignition and combustion stability is receiving increased attention recently. The conventional technologies have adapted the electrical devices to make the electromagnetic field, which resulted in various safety issues such as high-maintenance, additional high-cost system, electric shock and explosion. Therefore, an electrodeless microwave technology has an advantage for economic and reliability compared with conventional one because of no oxidation. However, the application of microwave has been still limited because of lack of interaction mechanism between flame and microwave. In this study, an experiment was performed with jet diffusion flames induced by microwaves to clarify the effect of microwave on the combustion stability and pollutant emissions. The results show that microwave induced flames enhanced the flame stability and blowout limit because of abundance of radical pool. However, NOx emission was increased monotonically with microwave intensity except 0.2 kW, and soot emission was reduced at the post flame region.

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References

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  1. Effects of Microwave Induction on the Liftoff and NOx Emission in Methane Micro Jet Flames vol.21, pp.2, 2016, https://doi.org/10.15231/jksc.2016.21.2.022
  2. Flickering Frequency and Pollutants Formation in Microwave Induced Diffusion Flames vol.31, pp.3, 2016, https://doi.org/10.14346/JKOSOS.2016.31.3.22