YOU NEED TO KNOW THIS:

When a ship is being constructed or build in a shipyard, the most important thing that comes into the mind of the builder is machineries, first, propulsion engine and secondly power generation. And in the market of machinery there are Both 2 stroke and 4 stroke engines widely available but 2 stroke cycle engine has been the leading in the large ocean going vessel, dispire the wide variety of advantages of 4 stroke cycle engine over 2 stroke.

Some of the important reasons why 2 stroke engines are choosing or more popular than 4 stroke engines as main propulsion engine on ships include;

Fuel adaption: The fuel prices have gone sky high and better grade fuel is adding higher costs to vessel operation. A two stroke engine can burn low grade fuel and hence reduce running cost of the ship.

Efficiency: The thermal and engine efficiency of 2 stroke engine is much better than that of a 4 stroke engine.

Power: All 2 stroke engines are large and produce more power. Hence they have high power to weight ration as compare to 4 stroke engine.

Reliability: Two stroke engines are more reliable in operation as compare to 4 stroke engine.

Less Maintenance: The maintenance requirement of two stroke engine is much lesser than 4 stroke engine.

No reduction attachments: As two stroke engines are low speed engine, there are no requirement of reduction gear or speed reduction marshalling as required for high speed four stroke engine.

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