Experimental Study on HCCI Combustion of Dimethyl Ether(DME)/Methanol Dual Fuel State Key Laboratory of Engine Combustion, Tianjin University

Format:

Conference/Event

Author/Creator:

Zheng, Zunqing, author.

Conference Name:

2004 Powertrain & Fluid Systems Conference & Exhibition (2004-10-25 : Tampa, Florida, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2004

Summary:

AbstractHomogeneous charge compression ignition (HCCI) is considered as a high efficient and clean combustion technology for I.C. engines. Methanol is a potential fuel for HCCI combustion. In this research, a single cylinder diesel engine was applied to HCCI operation. Methanol and dimethyl ether (DME) were fueled to the engine by fuel injection system with an electric controlled port in dual fuel mode.The results show that the stable HCCI operation of DME/methanol can be obtained over a quite broad speed and load region. And compared with higher speeds, the load region is even wider at low engine speed. E.g., at the engine speed of 1000 r/min, the maximum indicated mean effective pressure(IMEP) can reach 0.77 MPa, while at 2000r/min it is 0.53 MPa. Both DME and methanol influence HCCI combustion strongly, and by regulating DME/methanol proportions the HCCI combustion process could be controlled effectively. The emission tests indicate that NOx emissions are overall very low under normal HCCI operation, while HC and CO emissions are much higher than that in conventional CI-engines. An appropriate optimal HCCI operation can be obtained by controlling the DME and methanol supply according to operating condition

Notes:

Vendor supplied data

Publisher Number:

2004-01-2993

Access Restriction:

Restricted for use by site license