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CF4의 소각 특성에 대한 전산 연구 KCI 등재

A Numerical Study for the Thermal Incineration Characteristics of CF4

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한국폐기물자원순환학회지 (Journal of Korea Society of Waste Management)
한국폐기물자원순환학회 (Korea Society Of Waste Management)
초록

A parametric study has been made numerically on the thermal incineration of CF4, one of the perfluorocarbons (PFCs) emerging recently as issues of public concern in a practical CDM incinerator developed for the thermal destruction of HFC-23. In doing this, a turbulent combustion model of the fast combustion approximation is reasonably assumed using the typical auxiliary fuel, CH4, for the supply of the heat, and the necessary species of hydrogen and oxygen atom. In addition, the performance of the stoichiometric gas mixture of hydrogen and oxygen (H2+ 1/2 O2) was examined as a special auxiliary fuel not only in order to enhance the thermal destruction efficiency but also the reduction of the CO2 emission by the elimination or the reduction of the auxiliary fuel CH4 in this incineration process. The calculation results showed that the thermal destruction efficiency of CF4 using methane as an auxiliary fuel increases with the amount of methane. However, the thermal destruction efficiency did not reach a satisfactory level (i.e., < 95%), even with the application of a CH4 amount more than four times of the stoichiometric value. This is explained by the improper turbulent mixing effect between CH4, CF4 and air especially in a large scale practical incinerator employed for the destruction of HFC-23. For the case of H2+ 1/2 O2 as the auxiliary fuel, however, the thermal destruction efficiency, surprisingly, reached almost 100%, which shows the high potential of the thermal destruction of CF4 by the use of HHO gas. Further, a detailed evaluation for the effect of the turbulent mixing on the thermal destruction of CF4 will be quite necessary, considering operating conditions together with the type of auxiliary fuels.

목차
I. 서 론
 II. 수치해석 연구 방법
 III. 결과 및 고찰
 IV. 결 론
 사 사
 References
저자
  • 김용주(충남대학교 환경공학과) | Yongju Kim
  • 박민정(충남대학교 환경공학과) | Minjung Park
  • 신미수(충남대학교 환경공학과) | Misoo Shin
  • 이용국(충남대학교 환경공학과) | Yongguk Lee
  • 장동순(충남대학교 환경공학과) | Dongsoon Jang Corresponding author