中文版 English
Position:首页 > Question > other

Numerical simulation on the influence of water spray in thermal plasma treatment of CF_4 gas

Time:2012-08-14 20:46:23  From:Current applied physics   Author:Kim, T.-H. ;Choi, S. ;Park, D.

Numerical simulation on the influence of water spray in thermal plasma treatment of CF_4 gas      
Current applied physics  
Kim, T.-H. ;Choi, S. ;Park, D.-W.
Nitrogen thermal plasma generated by a non-transferred DC arc plasma torch was used to decompose tetrafluoromethane (CF_4). In the thermal decomposition process, water was used as a chemical reactant source. Two kinds of water spray methods were compared: water spray directly to the arc plasma flame and indirectly to the reactor tube wall. Although the same operating conditions of input power, waste gas, and sprayed water flow rate were employed for each water spray methods, a relatively higher decomposition rate was achieved in the case of water spray to the reactor wall. In order to investigate the effects of water spraying direction on the thermal decomposition process, a numerical simulation on the thermal plasma flow characteristics was carried out considering water injection in the reactor. The simulation was performed using commercial fluid dynamics software of the FLUENT, which is suitable for calculating a complex flow. From the results, it was revealed that water spray to the reactor wall and use of a relatively small quantity of water are more effective methods for decomposition of CF_4, because a sufficiently high temperature area and long reaction time can be maintained over large area.

 

keywords:Decomposition  Numerical simulation  Tetrafluoromethane (CF_4)  Thermal plasma  Water spray


本站文章未经允许不得转载;如欲转载请注明出处,北京桑尧科技开发有限公司网址:http://www.sunspraying.com/
 

Support
返回首页
Home page
发表评论 共有条评论
用户名: 密码:
验证码: 匿名发表
Information
Company Profile
Company Profile
The growth of Sunspraying Company
The growth of Sunspr
Article
    无相关信息
Update
Hot