Development of an Enhanced Mean-Value-Model for Optimization of Measures of Thermal-Management

M. Weinrich; M. Bargende

doi:10.4271/2008-01-1169

2008-04-14

Development of an Enhanced Mean-Value-Model for Optimization of Measures of Thermal-Management 2008-01-1169

In this paper, a simulation approach is introduced which takes into account all relevant heat sources and sinks in the combustion engine and in the engine compartment. With this approach, it is possible to calculate the appearing power flow and enthalpy flow as well as the component temperatures. Therefore, the complex thermodynamic and friction processes in the engine are described as simple as possible; the complete system can still be described reliably within certain limits, and the effects of different thermal optimization measures can be shown. It is an essential point for the modeling that only two integral quantities are necessary (the high pressure efficiency and the high pressure wall heat loss) for the complete combustion model.

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Development of an Enhanced Mean-Value-Model for Optimization of Measures of Thermal-Management 2008-01-1169

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