View Single Post
Old 11-26-2004, 10:20 AM   #3
YachtForums
Publisher/Administrator
 
YachtForums's Avatar
 
Join Date: Dec 2002
Location: South Florida
Posts: 10,358
It's ironic you should ask. I'm currently writing a a 40 page / 120 hour feasability study for a major transportation manufacturer on this very subject. In answer to your question... YES.

The steerable podded propulsor provides the greatest potential due to favorable hydrodynamics and control, while being competitive with conventional propulsion systems.

The benefits of diesel electrific propulsion (podded) are many...

1. Integrated electric power and propulsion systems enable design flexibility and save space, by eliminating gear trains and propeller shafts.

2. Hydrocoustic dampening is increased by eliminating the mechanical link between the power plant and the propeller. Essentially, electric drives will enable the reduction of noise and vibration.

3. Improved operational flexibility and reliability. With a diesel electric power-station concept, power is supplied by a set of primary gensets that provide power to propulsion and other designated loads. This approach provides the flexibility to shift power between propulsion, onboard services, and other electrical loads. It also enables improved speed control and maneuverability over conventional propellor and rudder configurations. Pods can rotate 360 degrees for directional thrust, eliminating thrusters.

4. Increased space. Eliminating gears and shafts from the propulsion system will make more space available for other uses. Also, the primary power (engines) will no longer be tied to the propeller shaft line, so the gensets can be distributed to more idealistic locations throughout the yacht, i.e. more favorable C.G. locations.

6. Reduced Crew. Due to digital control and automation, which will be an integral part of the yachts electrification, the requirements for additional engineering staff are reduced.

7. Reduced logistics. Common power and propulsion modules can be used across a variety of hull types and model lines.

8. Reduced costs. Commercial technology is likely to be available for many of the system elements.

9. Life-cycle cost. Overall operational efficiency is greatly improved as electric motors are able to sustain higher RPM's with less maintenance throughout their operational parameters.

10. Redundancy. Instead of one or two primary engine sources, multiple gensets can be utilized, both on-line and off-line, as power is needed. If one fails or is down for maintenance, the other gensets can provide power to the propulsors as needed.

11. Fuel-consumption savings. The diesel electric concept has been proven over a wide range of applications, from trains to ships, as a more economical source of propulsion.

I could continue, but you are probably falling asleep by now...
YachtForums is online now   Reply With Quote