Smoke Reduction of Light Duty DI Diesel Engine with Dimethyl Carbonate as an Oxygenate Additive
Huang Yongcheng，Wang Hewu，Zhou Longbao，Bai Fuqiang
(Xi'an Jiaotong University, Xi'an 710049, China)

Abstract: Smoke emissions and thermal efficiency are studied for a light duty DI diesel engine by using dimethyl carbonate (DMC) as an oxygenate additive. The former decreases while the latter increases with increasing of DMC proportion in diesel fuel without modification on fuel injection and combustion system. When the proportion of DMC in the blend fuel is 10％～15％, smoke emissions are reduced by 40％～50％ and thermal efficiency increases by 3％ with less penalty on engine power output.
Keywords: diesel engine;dimethyl carbonate;smoke emissions