Tuesday, September 15, 2009

Efficient propulsion system in ships and boats

There are many factors that influence the fuel consumption of ships or boats. Naval architects know that the interaction between the propeller, the hull and the main engine greatly influences the fuel consumption of ships whether they are big or small. So, in order to obtain ships that have optimum propulsion efficiency, naval architects must design the ships with the propulsion system that are fully integrated.

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This is not an easy thing to do because every propulsion unit is contradicting one to another. For example an efficient hull form must have lower block coefficient with streamlined shape that in the contrary reduce the carrying capacity of the ships or boats that are being designed. In addition, the use of diesel engine is seen as a highly efficient main engine that is now used in many ships but we must not forget that diesel engines have vibrations and exhaust gases that will not be comfortable for crews and passengers.


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Besides the hull form and the main engine, the propeller plays very important role in the design of the propulsion system of a ship. Marine propeller is usually located under water at the stern of a ship or boat. If the propeller is well designed and manufactured by experts in ship's propulsion, the fuel and financial savings will be greatly significant throughout the operational years of the ships or boats. by Charles Roring. Also read: How to estimate ship's length for a new design

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