It is well known that backpressure is one of the important parameters to be minimised during the exhaust system development. Unfortunately, during the first phases of an engineering process of a new engine, engine prototypes are not available yet. Due to this the exhaust system backpressure is generally evaluated using simulation software, and/or measuring the backpressure by a flow rig test at room temperature.Goal of this paper is to compare exhaust backpressure results obtained respectively: i) at the room temperature flow rig; ii) at the engine dyno bench; iii) by simulation with one of the most common 1D fluidodynamics simulation tool (Gt-Power). A correlation of the three different techniques is presented.
1-D Modeling and Room Temperature Experimental Measurements of the Exhaust System Backpressure: Limits and Advantages in the Prediction of Backpressure
Sae Technical Papers
SAE World Congress & Exhibition ; 2008
2008-04-14
Conference paper
English
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