Carbon Deposit Incineration During Engine Flameout Using Non-Thermal Plasma Injection
- 26 Downloads
In order to investigate the influence of initial regeneration temperatures on diesel particulate filter (DPF) regeneration, an experimental study of DPF regeneration was implemented using a dielectric barrier discharge (DBD) reactor, aided by exhaust waste heat after engine flameout. DPF trapping characteristics and carbon deposit mass were discussed to facilitate further data analysis and calculation. DPF regeneration was then investigated by comparison analysis of deposit removal mass, backpressure drop, and internal temperature change. The results revealed that a large amount of particulate matter (PM) was deposited in DPF with a high filtration efficiency of about 90 %. The deposit removal rate and percentage drop of the backpressure both maximized at the initial temperature of 100 °C. During DPF regeneration, the sharp rise of internal temperature indicated vigorous PM incineration and high CO2 emission. The results successfully demonstrated DPF regeneration using non-thermal plasma injection during engine flameout, and prominent heat durability was achieved in this method.
Key wordsDiesel particulate filter Exhaust waste heat Carbon deposition Regeneration Non-thermal plasma Heat durability
Unable to display preview. Download preview PDF.
- Fayad, M. A., Tsolakis, A., Fernández-Rodríguez, D., Herreros, J. M., Martos, F. J. and Lapuerta, M. (2017). Manipulating modern diesel engine particulate emission characteristics through butanol fuel blending and fuel injection strategies for efficient diesel oxidation catalysts. Applied Energy, 190, 490–500.CrossRefGoogle Scholar
- Yao, S., Kodama, S., Yamamoto, S., Fushimi, C., Madokoro, K., Mine, C. and Fujioka, Y. (2010). Characterization of an uneven DBD reactor for diesel PM removal. Asia-Pacific J. Chemical Engineering 5, 5, 701–707.Google Scholar
- Yoshida, K., Kuwahara, T., Kuroki, T. and Okubo, M. (2012). Diesel NOx aftertreatment by combined process using temperature swing adsorption, NOx reduction by nonthermal plasma, and NOx recirculation: Improvement of the recirculation process. J. Hazardous Materials, 231-232, 18–25.CrossRefGoogle Scholar