Reduction of diesel engine exhaust emissions using non-thermal plasma technology

Babaie, Meisam (2015) Reduction of diesel engine exhaust emissions using non-thermal plasma technology. PhD by Publication, Queensland University of Technology.


Non-thermal plasma (NTP) is a promising candidate for controlling engine exhaust emissions. Plasma is known as the fourth state of matter, where both electrons and positive ions co-exist. Both gaseous and particle emissions of diesel exhaust undergo chemical changes when they are exposed to plasma. In this project diesel particulate matter (DPM) mitigation from the actual diesel exhaust by using NTP technology has been studied. The effect of plasma, not only on PM mass but also on PM size distribution, physico-chemical structure of PM and PM removal mechanisms, has been investigated. It was found that NTP technology can significantly reduce both PM mass and number. However, under some circumstances particles can be formed by nucleation. Energy required to create the plasma with the current technology is higher than the benchmark set by the commonly used by the automotive industry. Further research will enable the mechanism of particle creation and energy consumption to be optimised.

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ID Code: 81593
Item Type: QUT Thesis (PhD by Publication)
Supervisor: Brown, Richard & Ristovski, Zoran
Additional Information: Embargo granted until 31st December 2015.
Keywords: Non-thermal plasma, Nitrogen oxides (NOX) removal, Multi Criteria Decision Analysis, Diesel particulate matter (DPM), Particle size distribution, Pulsed power, Diesel emission reduction, Particle number distribution, Scanning Mobility Particle Sizer (SMPS), PROMETHEE-GAIA
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Institution: Queensland University of Technology
Deposited On: 27 Feb 2015 04:44
Last Modified: 31 Dec 2015 14:01

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