What is the most efficient marine propulsion?
Azipod propulsion is a gearless steerable propulsion system with the electric drive motor located in a submerged pod outside the ship hull. Having 360° manoeuvrability, it is used to steer and drive a broad variety of vessels at the same time.
What is the advantage of diesel-electric propulsion?
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.
How does a diesel-electric propulsion system work?
In diesel-electric systems, multiple diesel engines, each driving an electric generator, produce the electric power that energizes the electric motors connected to the propellers as well as other electrical loads on the ship. Many of our ship diesel-electric designs use multiple engines of different sizes.
What is the most efficient propulsion system?
In general, more than one type of propulsion engine is required to achieve overall propulsive efficiency. In vacuum and just traveling in space but not for other uses due to the very low thrust they produce, and as criterion specific impulse, ion thrusters are the most efficient means of propulsion in space.
What kind of diesel engine are generally used for marine propulsion?
Most modern larger merchant ships use either slow speed, two stroke, crosshead engines, or medium speed, four stroke, trunk engines. Some smaller vessels may use high speed diesel engines.
Why diesel propulsion is most commonly used in ships?
Because of their poor thermal efficiency at low power (cruising) output, it is common for ships using them to have diesel engines for cruising, with gas turbines reserved for when higher speeds are needed.
Are diesel-electric engines efficient?
The diesel-electric system offers flexibility of fuel and as will be shown, could be driven coast-to-coast, nonstop, with an efficiency of around 75 miles per gallon.
What voltage do diesel electric locomotives work?
Modern locomotives incorporate traction inverters, AC to DC, capable of delivering 1,200 volts (earlier traction generators, DC to DC, were capable of delivering only 600 volts).
What are the disadvantages of diesel electric traction?
As compared with an electric locomotive, however, the diesel-electric has an important drawback: since its output is essentially limited to that of its diesel engine, it can develop less horsepower per locomotive unit.
What is the most efficient thruster?
Researchers have now found that ionic thrusters may be a far more efficient source of propulsion than conventional jet engines. In their experiments, they found that ionic wind produces 110 newtons of thrust per kilowatt, compared with a jet engine’s 2 newtons per kilowatt.
What is an Azipod propulsion system?
Azipod® propulsion is a gearless steerable propulsion system where the electric drive motor is housed in a submerged pod outside the ship hull.
Which superyacht has a diesel-electric propulsion?
Siemens diesel-electric propulsion, namely the Siship EcoProp, is on board the MY Vanadis superyacht, a 31-metre vessel built by CCN (Cerri Cantieri Navali).
Should I convert my boat to electric propulsion?
Hundreds of boaters are converting to electric propulsion each year…should you? Quiet….Clean….Reliable… Why Choose Electric Propulsion? Very little maintenance – estimated at less than 1/20 of the maintenance costs of a diesel engine in the first decade, even less compared to diesel as time goes on.
Why choose electric propulsion?
Why Choose Electric Propulsion? Very little maintenance – estimated at less than 1/20 of the maintenance costs of a diesel engine in the first decade, even less compared to diesel as time goes on. Due to the few moving parts and simplicity of the system, much, if not all, of the maintenance can be done by the owner
What are the different types of electric propulsion systems?
Electric propulsion/drives solutions at a glance 1 Drive LV. Our two diesel-electric marine propulsion systems reduce fuel requirements, increase maneuverability, minimize environmental risks, and make your ship quieter and more comfortable. 2 Drive MV. 3 Permasyn. 4 SGM. 5 SISHIP BlueDrive Family. 6 DC Prop.