A Comparative Study on Different Dual-Fuel Combustion Modes Fuelled with Gasoline and Diesel Tianjin Univ

Format:

Conference/Event

Author/Creator:

Yang, Yang, author.

Contributor:

Cheng, Wai

Li, Shanju

Yao, Mingfa

Zheng, Zunqing

Conference Name:

SAE 2012 World Congress & Exhibition (2012-04-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2012

Summary:

Comparisons have been made between dual-fuel (80% port-injection gasoline and 20% direct-injection diesel by mass) Highly Premixed Charge Combustion (HPCC) and blended-fuel (80% gasoline and 20% diesel) Low Temperature Combustion (LTC) modes on a 1-L single-cylinder test engine. In the HPCC mode, both early-injection (E-HPCC) and late-injection (L-HPCC) of diesel have been used. The comparisons have been conducted with a fixed fuel injection rate of 50 mg/cycle at 1500 rpm, and with the combustion phasing fixed (by adjusting the injection timing) so that the 50% heat release point (CA50) is at 8° ATDC. The rapid heat release process of LTC leads to the highest maximum pressure rise rate (MPRR). A two-peak heat release process is observed in L-HPCC, resulting in a lower MPRR. The heat release rate and MPRR values for the E-HPCC are comparable to the L-HPCC values. The EHPCC mode provides the lowest NOX emission. The soot emissions for all three modes are low. The HC emissions for both the HPCC modes are higher because of the trapping of the premixed gasoline mixture in the crevice volume

Notes:

Vendor supplied data

Publisher Number:

2012-01-0694

Access Restriction:

Restricted for use by site license