The Transactions of The Korean Institute of Electrical Engineers (전기학회논문지)

The Korean Institute of Electrical Engineers (대한전기학회)
권호 표지
DOI QR코드

DOI QR Code

A Study in The Efficiency Improvement of Thermal Plasma Gas Processor Through Fluid Dynamics Analysis of Reaction Zone

반응부의 유동해석을 통한 열플라즈마 가스처리기의 효율 개선

  • 서문준 (호서대 공대 반도체디스플레이공학과) ;
  • 정진도 (호서대 공대 환경공학과) ;
  • 구경완 (호서대 국방과학기술학과)
  • Received : 2011.01.18
  • Accepted : 2011.02.18
  • Published : 2011.03.01
Download PDF
⟨ Previous Next ⟩

Abstract

This study explores the numerical analysis method of fluid dynamics in the reaction section to improve the gas processing efficiency in the hazardous gas removal by atmospheric thermal plasma. This study also intends to contribute in technology advance to improve the processing efficiency and make the process more stable. Numerical analysis of temperature distribution in the reaction section dependent on the change in flow velocity of Ar and plasma temperature change, which are major control variables in the cracking process of HFC-23 using arc plasma, was done. The characteristic of incoming oxygen by temperature suggested that when temperature increased to 1600K, 1700K, 1800K respectively, the range of cracking temperature 1500K increased to 75.0%, 83.3%, 90.2% respectively. The temperature change of Ar by velocity change was widest in the area higher than 1500K when the velocity was 2.5m/s; however, since there was no big difference when the velocity was 2m/s, it is believed that 2 m/s would be most proper.

Keywords

References

  1. 김석준 : 저온 플라즈마를 이용한 유해가스 처리기술 개발, 한국기계연구원 보고서, pp. 14-17 (2001)
  2. J. Mckelliget and J. Szekely, 5th Arc furnace meeting, Budapest, Hungary, (1985)
  3. J. Szekely, J. Mckelliget and M. Choudhary : Heat-Transfer fluid flow and bath criculation in electric arc furnacse and DC plasma furnaces, Ironmaking and Steelmaking, vol. 10, no.4, pp 169-179, 1983
  4. B, Liu, T. Zhang and D. T. Gavane : Computation analysis of the influence of process parameters on the flow field of a plasma jet, Surface and Coating Technology, 132, pp. 202-216, 2000 https://doi.org/10.1016/S0257-8972(00)00733-7
  5. Energy and Environmental Research Corporation, Global Approach for Enhanced Mass Transfer Effects In-Duct Flue Gas Desulfurization Processes, Vol. 1, Literature Review, DOE Contact No. DE-AC22-88PC88873, DOE Report No. : DOE/PC/88873-T6-Vol.1.
  6. Stouffer, M. R., Yoon, H., Burke, F. P., "An Investigation of the Mechanisms of flue gas Desulfurization by in duct dry sorbent injection", Ind eng. Chem. res., vol. 28, no. 1, pp. 20-27, 1989 https://doi.org/10.1021/ie00085a005
  7. 황기웅, 이홍식, 최경일, 김윤택, "플라즈마 내에서의 전자장 해석", 대한전기학회논문지, 제39권, 4호, pp. 52-56, 1990. 4.
  8. 정진도, "상압 열플라즈마 발생부 및 반응부의 유동 및 혼합과정 해석", 한국과학기술연구원 보고서, pp. 4-6, 2010
  9. Chung, J. D., Kim, J. W. and Park, Y. M., "A study on vortex generators to improve the mixing rate inthe dry sorbent injection process of the gas desulfurization system", Korea J. Chem. Eng., Vol. 27, No. 1, pp. 83-90 (2010) https://doi.org/10.1007/s11814-009-0297-1
  10. 정진도, 김장우, 서문준, 이중기, "아크 플라즈마 발생부 및 반응부의 유동 및 혼합과정 수치해석", 폐기물자원순환학회, vol. 27, no. 6, pp.484-490, 2010
  11. ANSYS, ANSYS FLUENT 6.3 User's Guide, 2005
  12. DuPont : Thermodynamic Properties of HFC-23 (trifluoromethane), T-23-ENG