REASON OF DIESEL ENGINES USED IN MARINE

      


     

REASONS FOR WIDE USE OF DIESEL ENGINES IN MARINE POWER PLANTS.

1. Small fuel consumption:

Diesel Engine is one of the most efficient heat engines. Hence it gives more power with less fuel. It is an engine of high economy.

2. Cheap fuel:

Diesel engine uses fuel costing very less as compared to other engines.

3. Economy at light loads:

Diesel Engine is not only efficient when it is fully loaded, but also when it is partly loaded.

4. Greater Safety:

Diesel fuel is non-explosive and less flammable at normal temperatures and pressures. It requires special effort to make it start to burn. This feature makes it very attractive in the marine trade, because it would be much safer carrying diesel oil on board ships.

Diesel exhaust gases are less poisonous than other engines, because they contain less carbon monoxide.

5.  Ignition System is not required:

Diesel engines do not require battery or magneto running them.

6.  More power can be produced due to more compression allowed.

7.  Diesel Engine is more robust and stronger.

8. Economy in small sizes:

As great contrast to steam power plant, a small diesel engine has nearly as good an economy as a large one. This makes it possible to enlarge a diesel engine plant with additional units as the load grows. At all stages of growth, the efficiency is high.

9.  Sustained economy in service:

Again in contrast to a steam power plant, diesel efficiency falls off very little during thousands of hours of use between overhauls.

10. Lightness and compactness:

Diesel engine plants have less weight and space per unit power. It is therefore well suited to portable and mobile installations.

11. Independence of water supply:

A diesel engine requires very less water in contrast to steam plants.

12. Quick Starting.

A cold diesel engine can be started instantly and made to carry its full load in few minutes. It is therefore ideal for supplying emergency power.

13. Easily in Maneuvering:

A diesel engine can be made to run at full power in either direction.

 14. Economy in Labour.

No fire room force is needed.

15. Freedom from nuisance:

There are no ashes to be disposed of, no noisy and dusty coal handling and pulverising equipment to maintain, no smoke, and noise can be easily eliminated. Due to above mentioned reasons, Diesel engines are quite popular on board ships.

These reasons can very well be regarded as the advantages of Diesel Engines over other prime movers such as gasoline engines, gas turbines, steam engines, steam turbines and hydraulic turbines.