Browse > Article
http://dx.doi.org/10.14346/JKOSOS.2014.29.4.023

Characteristics of the Microwave Induced Flames on the Stability and Pollutant Emissions  

Jeon, Young Hoon (Department of Safety Engineering, Pukyong National University)
Lee, Eui Ju (Department of Safety Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Safety / v.29, no.4, 2014 , pp. 23-27 More about this Journal
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.
Keywords
jet diffusion flame; microwave; flame stability; emission; soot; NOx;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Y. C. Hong, S.C. Cho, C. U. Bang, D. H. Shin, J. H., Kim, H. S. Uhm and W. J. Yi, "Microwave Plasma Burner and Temperature Measurements in its Flame", Appl. Phys. Lett., Vol. 88, Issue 20, pp. 201502-201504, 2006.   DOI   ScienceOn
2 E. S. Stockmana, S. H. Zaidia, R. B. Milesa, C. D. Carterb and M. D. Ryanc, "Measurements of Combustion Properties in a Microwave Enhanced Flame", Combustion and Flame, Vol. 156, Issue 7, pp. 1453-1461, 2009.   DOI
3 F.J. Weinberg, K. Hom, A.K. Oppenheim and K. Teichman, Ignition by Plasma Jet, Nature Vol. 272, No. 5651, pp 341-343. 1978.   DOI
4 P. Fauchais and A. Vardelle, Thermal Plasmas, IEEE Trans. Plasma Sci. Vol. 25, No. 6, pp 1258-1280, 1997.   DOI   ScienceOn
5 S. M. Starikovskaia, "Plasma Assisted Ignition and Combustion", J. Phy.D : Appl. Phys.. Vol. 39, No. 16, R265-R299. 2006.   DOI
6 X. Raoa, K. Hemawanb, I. Wichmana, C. Carterc, T. Grotjohnb, J. Asmussenb and T. Leea, "Combustion Dynamics for Energetically Enhanced Flames using Direct Microwave Energy Coupling", Proceedings of the Combustion Institute, Vol. 33, Issue 2, pp. 3233-3240, 2011.   DOI
7 S. Ogawa, Y. Sakai, K. Sato and S. Sega, "Influence of Microwave on Methane-air Laminar Flames", Jpn. J. Appl. Phys. Vol. 37, No. 1, pp. 179-185, 1998.   DOI
8 K. Takita, G. Masuya, T. Sato and Y. Ju, "Effect of Addition of Radicals on Burning Velocity", AIAA J. Vol. 39, No. 4, pp. 742-744, 2001.   DOI
9 K. W. Hemawan, I. S. Wichman, T. Lee, T. A. Grotjohn and J. Asmussen, "Compact Microwave Re-entrant Cavity Applicator for Plasma-assisted Combustion", Rev. Sci Instrum., Vol. 80. Issue 5, pp. 053507, 2009.   DOI