10
Jun
A diesel electric power system can drive multiple propellers from a single engine or use multiple engines to power one or more propeller. Thinking about repowering your vessel from the traditional fossil fuel gas or diesel to a quiet efficient electric drive system is a major decision and one that should be carefully made.
Electric propulsion systems are designed according to.
Diesel electric drive system. In diesel-electric drive systems 100 of the energy is generated from internal combustion engines. The mechanical energy generated by an internal combustion engine is converted into alternating current by a generator which means that diesel-electric propulsion systems are. Diesel-electric drive takes less space than the equivalent direct-drive two-stroke engine allowing the aft section to be slimmer and giving better flow over the propeller.
Not only is the diesel-electric drive train lighter than a two-stroke engine but also its weight can be distributed more evenly. Diesel-electric propulsion systems are used on ships with special operational requirements. These systems are based on the principle of speed controlled AC motors driving the propeller directly or by gearing.
The most reli-able and low noise design is the direct drive. Electric propulsion systems are designed according to. The electrical propulsion arrangement for a ship is often described as a diesel-electric or turbo-electric system.
It is characterized only by the type of prime mover with no reference to the type of electrical propulsion motor. When the prime mover is a diesel engine then it is called Diesel-Electrical. Diesel-electric systems by MAN Energy Solutions are designed to meet customers highest requirements.
Times are changing and thanks to new direct current DC components and an innovative engine control philosophy diesel-electric propulsion has evolved creating a much more compact solution with a range of potential applications. Wärtsilä has delivered the low noise diesel-electric propulsion systems for many research and survey vessels. These propulsion systems are based on the principle of speed controlled DC or AC motors driving the propeller directly or via gears.
The most reliable and low noise design is the direct drive. Hybrid drive systems are predestined for applications with highly variable power ranges. These generally consist of two separate power sources diesel andor electric motors per propeller with different power ratings.
SCHOTTEL has further extended the system to a. Generally speaking the design of vessels with modern electric propulsion systems either diesel electric LNG electric or even fully electric can be quite easily converted to a hybrid solution. In the best case just by adding a parallel E-Storage system a vessel can be operated utilizing battery power for example for peak power demand.
Indeed Drive LV is the most reliable diesel-electric propulsion system ever built making it a future-proof solution which helps to ensure the competitiveness of your vessels for the long term. Profit from a perfectly planned system consisting of diesel generators low-voltage switchgear frequency converter and drive motors in combination with an ingenious propulsion control and monitoring system. With a decade of experience and hundreds of diesel electric packages in operation globally Cummins is one of the pioneers in diesel electric propulsion.
The company has developed in-house capability to design genset packages and support diesel electric vessels long offering custom packages through the Cummins marine distribution channel as well as more standardized C Power generator sets from the. Thinking about repowering your vessel from the traditional fossil fuel gas or diesel to a quiet efficient electric drive system is a major decision and one that should be carefully made. The technology is here today to make that conversion possible.
From the naval architects standpoint a diesel-electric system allows the drive engine to be moved away from the end of the propeller shaft. The diesel generator can also be located away from guests to reduce noise and vibration and placed in areas. A diesel electric power system can drive multiple propellers from a single engine or use multiple engines to power one or more propeller.
In a twin-enginetwin-prop system one engine can power both props when operating within the speed limits imposed in many areas. The electrical propulsion arrangement for a ship is often described as a diesel-electric or turbo-electric system. It is characterized only by the type of prime mover with no reference to the type of electrical propulsion motor.
When the prime mover is a diesel. This is a series-hybrid arrangement and is common in dieselelectric locomotives and ships the Russian river ship Vandal launched in 1903 was the worlds first diesel-powered and dieselelectric powered vessel and Ferdinand Porsche successfully used this arrangement in the early 20th century in racing cars including the LohnerPorsche Mixte Hybrid. The diesel engine makes 3200 horsepower and the generator can turn this into almost 4700 amps of electrical current.
The four drive motors use this electricity to generate over 64000 pounds of thrust. There is a completely separate V-12 engine and generator to provide electrical power for the rest of the train.