Some Considerations on Fuel Saving of Diesel Engine Propulsion Plant

Abstract

In this paper, the following points are discussed for fuel saving.
-It is effective to optimize turbocharger spec., compression ratio and fuel injection timing, and also to provide such measures as fuel injection system of high injection rate, variable injection timing device, turbocharger by-pass system for charging air and non-cooled turbocharger.
-Some considerations on the de-rating are mentioned.
-At slow steaming, reducing number of working turbocharger, changing turbocharger spec. and slow nozzle are typical measures.
-Introduction of exhaust gas by-pass system is successful measures for utilizing the economizerturbogenerator system.
-Some examples of retrofit application to engines in service for fuel saving are given.