|
About:
|
Marine Propulsion Systems move ships through the water, ensures a better safety standard for the marine ecosystem and are cost-efficient. Worldwide goals have been set for emission reductions for the maritime sector.
"The IMO is targeting a reduction in the carbon intensity of international shipping by at least 40% by 2030 compared with 2008 levels, and by 70% by 2050. The IMO took this action to support the United Nations Sustainable Development Goal 13, to take urgent action to combat climate change and its impacts."
The most commonly used type of marine engine is the reciprocating diesel engine that has a higher efficiency compared to other models. These engines can be classified into three types based on their revolutions per minute (rpm).
The three categories- slow, medium, and high speed have their own benefits based upon the type of ship to be powered.
For instance, large ships require a low speed but high torque propulsion system to power them. For such vessels, a low output speed engine can be selected.
The issue with using slow-speed engines is the large space they take up as compared to the other engines. Thus, a space-effective solution would be to install high-speed engines in the ship, and then reduce the torque before it reaches the propellers.
For this, a gearbox is a very useful component that can be used to manipulate rotational torque transfer. It is attached to the Marine Propeller Shaft and reduces the power transmitted to the propeller.
The slow speed engines pose no problem to the transfer of torque and do not require an additional gearbox. The gearbox in the other speed engines is attached in between the intermediary and propeller shafts.
|
