Choi, Sooseok Cho, Kyu Young Woo, Joo Man Lim, Jong Choo Lee, Joong Kee 2024-01-20T16:30:56Z 2024-01-20T16:30:56Z 2021-09-05 2011-09 1567-1739 https://pubs.kist.re.kr/handle/201004/130013 It was simulated that thermal flow characteristics inside a thermal plasma reactor for an abatement ofHFC-23 (trifluoromethane, CHF3) which is a kind of greenhouse gas. Effects of arc current and length of reaction tubes on the decomposition process were numerically analyzed to find out a suitable plasma torch operating condition and an optimal reactor design. Numerical results were in good agreements with experimental results on measured temperature at reactor exit and a damaged appearance of the inner reaction tube after the practical decomposition process. A sufficiently large area and high temperature over 1500 K for HFC-23 decomposition was predicted in the torch operation with an arc current of 50 A. In this condition, a high decomposition rate over 99.5% was achieved in spite of a short residence time estimated around 50 ms. And it was revealed that not only the length of the inner reaction tube which is continuously contact with high heat flux from the thermal plasma jet but also the outer tube length is important for a durable operation of the reactor system. (C) 2011 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE BV DECOMPOSITION CHF3 TRIFLUOROMETHANE EMISSIONS PYROLYSIS FILMS PFCS Numerical analysis on a thermal plasma reactor for HFC-23 treatment Article 10.1016/j.cap.2011.05.008 1 CURRENT APPLIED PHYSICS, v.11, no.5, pp.S94 - S98 CURRENT APPLIED PHYSICS 11 5 S94 S98 scie scopus kci 000296969800021 2-s2.0-81155134627 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article; Proceedings Paper DECOMPOSITION CHF3 TRIFLUOROMETHANE EMISSIONS PYROLYSIS FILMS PFCS Thermal plasma HFC-23 Greenhouse gas Thermal decomposition Reactor design