Accession Number:

ADA031330

Title:

A Performance Model for the Texaco Controlled Combustion, Stratified Charge Engine,

Descriptive Note:

Corporate Author:

TEXACO INC BEACON N Y TEXACO RESEARCH CENTER

Personal Author(s):

Report Date:

1976-01-01

Pagination or Media Count:

53.0

Abstract:

A model has been developed to predict the performance of the Texaco Controlled Combustion, Stratified Charge Engine starting from engine geometry, fuel characteristics and the operation conditions. This performance model divides the engine cycle into the following phases Intake, Compression, Rapid Combustion, Mixing - Dominated Expansion, Heat - Transfer Dominated Expansion and Exhaust. During the rapid combustion phase, the rate of heat release is assumed to be controlled by the rate of fuel injection and the gas-to-fuel ratio. Entrainment of the surrounding gas by the plume is assumed to be controlled by the turbulent eddy entrainment velocity. A plume geometry model has been developed to obtain the surface area of the plume for entrainment during the mixing dominated phase. The model also gives the wall areas in contact with the hot, burned gas plume and the relatively cold unburned gas for heat transfer calculations. Comparison of the model predictions with the available experimental data shows good agreement. In addition, the potential of the performance model as a design tool is demonstrated with a parametric analysis. Author

Subject Categories:

  • Reciprocating and Rotating Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE