User:TVaske/Marine propulsion

Hydrogen Fuel
While currently not commonly used in the maritime industry, hydrogen as a fossil fuel alternative is an area with heavy investment. As of 2018 the shipping company Maersk has pledged to be carbon free by 2050, a goal they plan to achieve partly by investing in hydrogen fuel technology. While hydrogen is a promising fuel, it has a few disadvantages. Hydrogen is far more flammable than other fuels such as diesel, so precautions must be taken. It is also not very energy dense, so it has to be heavily compressed to increase its energy density enough for it to be practical, similar to methane and LNG. Hydrogen can have its power extracted either by use of a fuel cell system or it can be burned in an internal combustion engine, similar to the diesel engines presently used in the maritime industry.

New Photo for sail propulsion


The propeller then moves the vessel by creating thrust. When the propeller rotates the pressure in front of the propeller is greater the pressure behind the propeller. The force from the pressure change propels the propeller forward.

Needed citation for turbo-electric