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On marine vessels the Power Management System PMS is in charge of controlling the electrical system. Its task is to make sure that the electrical system is safe and efficient. If the power consumption is larger than the power production capacity, load shedding is used to avoid blackout.
Principle of a CODLAG propulsion system. Combined diesel–electric and gas (CODLAG) is a modification of the combined diesel and gas propulsion system for ships. A variant, called the combined diesel–electric or gas (CODLOG) system, contains the same basic elements but will not allow simultaneous use of the alternative drive sources. [1]
The 244 engine was still used in higher-end power generation packages until it too was replaced by 251-engined power generation equipment in 1956. A pair of Alco 251C engines is also used for powering the 6,000,000 lb (2,721,554 kg) NASA Crawler Transporter that transport rockets and their platforms from the Vehicle Assembly Building to the ...
At first the power output was originally 110 PS (81 kW) which was then increased to 130 PS (96 kW) at 8000 rpm. [ 10 ] In 1968, the engine displacement was increased again to 1298 cc with new bore and strokes of 78.5 mm x 67.1 mm and also renamed to R92B .
The Fairbanks-Morse 38 8-1/8 is a diesel engine of the two-stroke, opposed-piston type. [1] It was developed in the 1930s, and is similar in arrangement to a contemporary series of German Bombers aircraft diesels. [2]
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In most cases the difference of power output from diesel engines alone to diesel and turbine power combined is too large for controllable-pitch propellers to limit the rotations so that the diesels cannot continue to operate without changing the gear ratios of their transmissions. Because of that, special multi-speed gearboxes are needed.
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.