Effects of Inlet Air Heating and EGR on Thermal Efficiency of a SI Engine at Part Load Dept. of Mechanical Engineering University of Minnesota

Format:

Conference/Event

Author/Creator:

Brehob, Diana D., author.

Conference Name:

Passenger Car Conference & Exposition (1990-09-17 : Dearborn, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1990

Summary:

The common method for achieving less than full power operation in a spark ignition (SI) engine is reducing charge density via a throttle. However, a significant fuel economy penalty is associated with the pumping losses across the throttle valve. An alternative method to aid in reducing fresh charge density has been investigated on an Oldsmobile Quad-4 engine: exhaust gas recirculation in combination with inlet air heating. Brake thermal efficiency gains of about 6% were realized. The exhaust hydrocarbon increases associated with EGR were mitigated largely by inlet air heating

Notes:

Vendor supplied data

Publisher Number:

901713

Access Restriction:

Restricted for use by site license