Performance simulation of sequentially turbocharged marine Diesel

Equipe Energétique des Moteurs à Combustion Interne
Laboratoire de Mécanique des Fluides – UMR CNRS 6598
Performance simulation of sequentially turbocharged marine
Diesel engines with applications to compressor surge
Pascal Chessé, Jean-François Hétet, Xavier Tauzia, Philippe Roy, Bahadir Inozu
Journal of Engineering for Gas Turbines and Power
The American Society of Mechanical Engineers
This paper presents the SELENDIA code designed for the simulation of marine diesel
engines. Various measured and simulated results are compared for the performance of a
sequentially turbocharged marine diesel engine during a switch from one to two
turbochargers. The results show a good agreement between measured and simulated data.
Surge loops that are experimentally observed in case of an anomaly are analyzed using
simulated results. Finally, the predictive capabilities of the simulation code are utilized to
investigate the influence of the inlet manifold volume on the engine and air charging system
performance with a special focus on compressor surge.
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