Evaluation of residence time on nitrogen oxides removal in non-thermal plasma reactor
Talebizadeh, Pouyan, Rahimzadeh, Hassan, Babaie, Meisam, Anaghizi, Saeed Javadi, Ghomi, Hamidreza, Ahmadi, Goodarz, & Brown, Richard (2015) Evaluation of residence time on nitrogen oxides removal in non-thermal plasma reactor. PLoS ONE, 10(10), e0140897.
Non-thermal plasma (NTP) has been introduced over the last few years as a promising after- treatment system for nitrogen oxides and particulate matter removal from diesel exhaust. NTP technology has not been commercialised as yet, due to its high rate of energy consumption. Therefore, it is important to seek out new methods to improve NTP performance. Residence time is a crucial parameter in engine exhaust emissions treatment. In this paper, different electrode shapes are analysed and the corresponding residence time and NOx removal efficiency are studied. An axisymmetric laminar model is used for obtaining residence time distribution numerically using FLUENT software. If the mean residence time in a NTP plasma reactor increases, there will be a corresponding increase in the reaction time and consequently the pollutant removal efficiency increases. Three different screw thread electrodes and a rod electrode are examined. The results show the advantage of screw thread electrodes in comparison with the rod electrode. Furthermore, between the screw thread electrodes, the electrode with the thread width of 1 mm has the highest NOx removal due to higher residence time and a greater number of micro-discharges. The results show that the residence time of the screw thread electrode with a thread width of 1 mm is 21% more than for the rod electrode.
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|Item Type:||Journal Article|
|Keywords:||Non-thermal plasma, Residence time, NOx removal, Dielectric Barrier discharge reactor, Fluent software|
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2015 Talebizadeh et al|
|Copyright Statement:||This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited|
|Deposited On:||27 Nov 2015 04:22|
|Last Modified:||29 Nov 2015 23:10|
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