Class 1 (Chief Engineer) Engineering Management 📅 Dec 2021

Exam Question

(a) Elaborate some of the technological innovations adopted developed to improve the overall plant efficiency of ships propulsion engine?

(b) Describe fuel injection system in the 'cam shaft less' engines of any one of the major slow speed engine makers. Highlight the improvements possible when compared with the traditional svstems

Reference Answer

### (a) Technological Innovations for Overall Plant Efficiency
To improve the overall efficiency of a ship's propulsion plant, numerous technological innovations have been developed, focusing on the main engine, waste heat recovery, and hydrodynamic performance.
#### 1. Main Engine Internal Efficiency Improvements
* **Electronic Engine Control:** Modern engines, such as MAN B&W ME-C and Wärtsilä RT-Flex series, have replaced the mechanical camshaft with electronic-hydraulic actuation systems. This provides:

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