A Tool for Predicting the Thermal Performance of a Diesel Engine |
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Authors: | Antonio J Torregrosa Pablo Olmeda Jaime Martín Carlos Romero |
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Affiliation: | CMT-Motores Térmicos, Universidad Politécnica de Valencia , Valencia , Spain |
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Abstract: | This paper presents a thermal network model for the simulation of the transient response of diesel engines. The model was adjusted by using experimental data from a completely instrumented engine run under steady-state and transient conditions. Comparisons between measured and predicted material temperatures over a wide range of engine running conditions show a mean error of 7°C. The model was then used to predict the thermal behavior of a different engine. Model results were checked against oil and coolant temperatures measured during engine warm-up at constant speed and load, and on a New European Driving Cycle. Results show that the model predicts these temperatures with a maximum error of 3°C. |
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