REASONS FOR WIDE USE OF DIESEL ENGINES IN MARINE POWER PLANTS
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| WHY SHIPS USE DIESEL ENGINE |
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.
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