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A marine steam engine is a steam engine that is used to power a ship or boat. This article deals mainly with marine steam engines of the reciprocating type, which were in use from the inception of the steamboat in the early 19th century to their last years of large-scale manufacture during World War II .
Marine propulsion is the mechanism or system used to generate thrust to move a watercraft through water. While paddles and sails are still used on some smaller boats, most modern ships are propelled by mechanical systems consisting of an electric motor or internal combustion engine driving a propeller, or less frequently, in pump-jets, an ...
The production of steam by nuclear marine propulsion units is almost exclusively done in aircraft carriers and submarines, due to the regulations limiting distribution and ownership of the radioactive fuels used to power the plants. Nuclear systems present an additional danger due to the radioactivity of the fuel source and risk of reactor breach.
If the turbines do not drive a propeller shaft directly and instead a turbo-electric transmission is used, the system is known as COGES (combined gas turbine-electric and steam). COGAS differs from many other combined marine propulsion systems in that it is not intended to operate on one system alone.
Pages in category "Marine steam propulsion" The following 11 pages are in this category, out of 11 total. This list may not reflect recent changes. ...
While steam turbine-driven merchant ships such as the Algol-class cargo ships (1972–1973), ALP Pacesetter-class container ships (1973–1974) [37] [38] and very large crude carriers were built until the 1970s, the use of steam for marine propulsion in the commercial market has declined dramatically due to the development of more efficient ...
Combined steam and gas (COSAG) is a propulsion system for ships using a combination of steam turbines and gas turbines to power the shafts. Combined marine propulsion Combined diesel or gas (CODOG)
Oscillating marine steam engine; T. Trunk engine This page was last edited on 1 June 2021, at 01:29 (UTC). Text is available under the Creative Commons Attribution ...