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Turbo generators are used for high shaft rotational speeds, typical of steam and gas turbines. The rotor of a turbo generator is a non-salient pole type usually with two poles. [5] The normal speed of a turbo generator is 1500 or 3000 rpm with four or two poles at 50 Hz (1800 or 3600 rpm with four or two poles at 60 Hz).
A CODLAG system employs electric motors which are connected to the propeller shafts (usually 2). The motors are powered by diesel generators.For higher speeds, a gas turbine powers the shafts via a cross-connecting gearbox; for cruise speed, the drive train of the turbine is disengaged with clutches.
The four propulsion plants on Enterprise each contained two reactors, numbered according to the shaft they powered, 1A-1B, 2A-2B, 3A-3B, and 4A-4B. Each propulsion plant was capable of operating on one reactor plant through most of the power range required to propel the ship at speeds in excess of 33 knots (60 km/h).
An example of integrated electric propulsion in the Type 45 destroyer (GT: gas turbine; DG: diesel generator) Integrated electric propulsion (IEP), full electric propulsion (FEP) or integrated full electric propulsion (IFEP) is an arrangement of marine propulsion systems such that gas turbines or diesel generators or both generate three-phase [1] electricity which is then used to power ...
The General Electric LM6000 is a turboshaft aeroderivative gas turbine engine. The LM6000 is derived from the CF6-80C2 aircraft turbofan.It has additions and modifications designed to make it more suitable for marine propulsion, industrial power generation, and marine power generation use.
Naval reactors directly use turboshaft power for turning the ship's screws. Over decades of development several other design differences have emerged between naval reactors and the usually much larger power station reactors. It is estimated that the thermal power output of each A1B will be around 700 MW th, some 25% more than provided by the ...
The steam generator will alleviate the corrosion concerns encountered in existing designs of steam generators, while reducing component size and weight and providing greater flexibility in overall arrangement. The reactor is designed to operate for 33 years without refueling. [1] [2]
ALCO 18-251 V18 engine used as a backup generator at a wastewater plant in Montreal. The inline-6 designs of 800 hp (597 kW) version of the 251 engine replaced the 539 engine in 1954 in Alco's low-end line of power generation packages. The 244 engine was still used in higher-end power generation packages until it too was replaced by 251-engined ...