Article | REF: BM2635 V2

Charged air loop of the engines. Between engine performance and pollutant emission reduction

Author: Laurent ODILLARD

Publication date: June 10, 2023

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3. Usual charge-air line architectures

The following applies only to supercharged engines equipped with a charge gas cooling system.

3.1 A reminder about exchanger modeling

By definition, when we want to characterize a tube or pipe through which a fluid flows, we need to know :

  • the pressure drop across the pipe,

  • the thermal power exchanged.

In this type of stationary modeling, we consider the fluid flow to be constant. In this case, the pressure drop for a given flow cross-section is represented by :

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Usual charge-air line architectures