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Impact of After-Treatment Devices on Biodiesel Engine Particle Number Emission Characteristics

Author:
Yao, Di   Lou, Di Ming   Tan, Pi Qiang   Hu, Zhi Yuan   Feng, Qian  


Journal:
Advanced Materials Research


Issue Date:
2013


Abstract(summary):

Based on a diesel engine fuelled with BD20 biodiesel, particle number (PN) emission characteristics of the engine equipped with DOC, DOC+DPF and none after-treatment device were investigated respectively by engine bench tests. Results showed that both of DOC and DOC+DPF reduced PN emissions, DOC mainly reduced PN in size range of 30nm similar to 50nm smaller diameter, DPF reduced PN of particles larger than 10nm diameter obviously. PN reduction rate of DOC and DOC+DPF were 5%similar to 35% and 60%similar to 98%, DPF contributed 35%similar to 90% of PN reduction rate on the base of DOC. The after-treatment combination of DOC+DPF was recommended as the device with high efficiency in particle number emission control of biodiesel engine.


Page:
263-268


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