Experimental Study of B20 Combustion and Emission Characteristics under Several EGR Conditions

Paper #:
  • 2015-01-1078

Published:
  • 2015-04-14
DOI:
  • 10.4271/2015-01-1078
Citation:
Chai, Z., Zhang, F., Liu, B., Huang, Y. et al., "Experimental Study of B20 Combustion and Emission Characteristics under Several EGR Conditions," SAE Technical Paper 2015-01-1078, 2015, https://doi.org/10.4271/2015-01-1078.
Pages:
6
Abstract:
It is found that biodiesel has a great potential to reduce the nitrogen oxides (NOx) and soot emissions simultaneously in low temperature combustion (LTC) mode. The objective of this study is to investigate the combustion and emission characteristics of 20% biodiesel blend diesel fuel (B20) under several exhaust gas recirculation (EGR) conditions for LTC application. An experimental investigation of B20 was conducted on a four-stroke common rail direct injection diesel engine at 2000rpm and 25% load condition. The EGR ratio was adjusted from 10% to 66%, and the injection pressure was tuned from 100MPa to 140MPa.The result showed that B20 generated less soot emission than conventional diesel with increasing EGR ratio, especially when the EGR ratio was beyond 30%. Soot emission increased with increasing EGR ratio up to 50% EGR, after which there is a steep decrease in particular matter (PM). Soot and NOx emission decreased simultaneously in a narrow region between 50% and 66% EGR ratio. Meanwhile, the soot emission declined with the promotion of injection pressure.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2011-04-12