THERMAL SIMULATION FOR SMALL ENGINES A number of studies show that a well-designed engine encapsulation can extend engine cool-down time significantly – on the order of 500 – 700 percent. This is expected to have a sensitive influence on the fuel consumption due to the increased probability for high oil temperatures at the following engine start reduced length of the initial warm-up period and consequently, reduced friction losses. This aims to set up and develop a simulation platform for investigations of the potential effect of thermal engine encapsulation on fuel consumption. This documents the development and validation of the methods and tools used for this purpose and applies them to estimate the effect of various initial oil temperatures on the fuel consumption of a commercial vehicle during a cold start drive cycle.
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