TY - JOUR
T1 - Experimental Study of B20 Combustion and Emission Characteristics under Several EGR Conditions
AU - Chai, Zhigang
AU - Zhang, Fujun
AU - Liu, Bolan
AU - Huang, Ying
AU - Ai, Xiaowei
N1 - Publisher Copyright:
Copyright © 2015 SAE International.
PY - 2015/4/14
Y1 - 2015/4/14
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84938368041&partnerID=8YFLogxK
U2 - 10.4271/2015-01-1078
DO - 10.4271/2015-01-1078
M3 - Conference article
AN - SCOPUS:84938368041
SN - 0148-7191
VL - 2015-April
JO - SAE Technical Papers
JF - SAE Technical Papers
IS - April
T2 - SAE 2015 World Congress and Exhibition
Y2 - 21 April 2015 through 23 April 2015
ER -