Computer Simulation of the Performance of a 1.9 Litre Direct Injection Diesel Engine
Date Published: 2002-03-04
Paper Number:2002-01-0070
DOI: 10.4271/2002-01-0070
Author(s):
C. D. Mccartan - Queen's University Belfast
P. T. Mcentee - Queen's University Belfast
R. Fleck - Queen's University Belfast
G. P. Blair - Queen's University Belfast
D. O. Mackey - Optimum Power Technology
Recent environmental legislation to reduce emissions and improve efficiency means that there is a real need for improved thermodynamic performance models for the simulation of direct-injection, turbocharged diesel engines, which are becoming increasingly popular in the automotive sector.
An accurate engine performance simulation software package (VIRTUAL 4-STROKE) is employed to model a benchmark automotive 1.9-litre Turbocharged Direct Injection (TDI) diesel engine. The accuracy of this model is scrutinised against actual test results from the engine. This validation includes comparisons of engine performance characteristics and also instantaneous gas dynamic and thermodynamic behaviour in the engine cylinders, turbocharger and ducting. It is seen that there is excellent agreement in all of these areas.
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