Combustion and Heat Transfer Studies in a Direct-Injection Diesel Engine Automotive Systems Laboratory Department of Mechanical and Industrial Engineering University of Illinois at Urbana-Champaign Urbana, IL

Format:

Conference/Event

Author/Creator:

Wiese, Kevin L., author.

Conference Name:

1989 SAE International Off-Highway and Powerplant Congress and Exposition (1989-09-11 : Milwaukee, Wisconsin, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1989

Summary:

An experimental investigation is being conducted to study the heat release and transient heat transfer characteristics of a single cylinder diesel engine. Pressure and transient temperature data from two stationary locations in the cylinder head were used to calculate heat release and transient heat flux rates for various injection timings, speeds, and loads. As injection timing is retarded, the heat release indicates a shift from predominantly pre-mixed combustion to largely diffusion limited combustion. Changes in load affected mainly the diffusion phase of combustion, while changes in speed more strongly affected the pre-mixed portion of combustion. Fluxes calculated at both locations reflect the prominent traits of the heat release profiles, but lag several crank angle in phase. The surface temperature and flux over the bowl were greater than over the crown. The flux at the outer location exhibited greater variation as engine operating conditions were changed. This study can give a better understanding of the relationship between combustion and local heat flux in a direct injected diesel engine

Notes:

Vendor supplied data

Publisher Number:

891902

Access Restriction:

Restricted for use by site license