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.

View at publisher (open access)


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.

Impact and interest:

1 citations in Scopus
Search Google Scholar™
1 citations in Web of Science®

Citation counts are sourced monthly from Scopus and Web of Science® citation databases.

These databases contain citations from different subsets of available publications and different time periods and thus the citation count from each is usually different. Some works are not in either database and no count is displayed. Scopus includes citations from articles published in 1996 onwards, and Web of Science® generally from 1980 onwards.

Citations counts from the Google Scholar™ indexing service can be viewed at the linked Google Scholar™ search.

Full-text downloads:

12 since deposited on 27 Nov 2015
12 in the past twelve months

Full-text downloads displays the total number of times this work’s files (e.g., a PDF) have been downloaded from QUT ePrints as well as the number of downloads in the previous 365 days. The count includes downloads for all files if a work has more than one.

ID Code: 90828
Item Type: Journal Article
Refereed: Yes
Keywords: Non-thermal plasma, Residence time, NOx removal, Dielectric Barrier discharge reactor, Fluent software
DOI: 10.1371/journal.pone.0140897
ISSN: 1932-6203
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

Export: EndNote | Dublin Core | BibTeX

Repository Staff Only: item control page