Compressed air system for auxiliary engines on board performs some critical functions -starting,stopping & pneumatic controls Figure 1. Starting & Control Air System NC (Normally Closed) valve will remain closed when not activated,as shown.However,whenever activated or energized the valve spool will be pushed against the spring in the direction of the arrow and open. NO […]
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Emergency trips are vital for safeguarding the engine in fault or abnormal running conditions & are the last line of defense. Emergency trip/shutdown will be triggered for following cases: There are two independent speed measuring sensors(pick-ups).One for the Control system & the other for the Safety system.If both of them fail,engine will trip. How Emergency Shutdown
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CW system for 4-stroke Auxiliary Engines on board The cooling water systems of modern 4-stroke auxiliary engines are,basically,a combination of two circuits: I. A low temperature (LT) circuit, and II. A high temperature (HT) circuit Further,it needs to be noted that the CA (charged air) coolers in the system are having two stages: Stage 1
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