- #1
gcomyn
- 3
- 0
Does anyone know how big a 20MW synchronous motor would be to drive a ship's propellor?
Size of a 20MW Synchronous Motor for Ship Propulsion
- Thread starter gcomyn
- Start date
-
- Tags
- Electrical Propulsion Ship
Click For Summary
SUMMARY
A 20MW synchronous motor, such as those used in the P&O ship "Aurora," is essential for driving ship propellers. The discussion highlights that while nuclear submarines utilize a hot water turbine directly connected to the propeller shaft, the equivalent power output is approximately 26MW. The size of the motors used in these applications can be inferred from datasheets and scale drawings available online. For precise dimensions, the datasheet for the "Aurora" provides valuable insights.
PREREQUISITES- Understanding of synchronous motor specifications
- Familiarity with marine propulsion systems
- Knowledge of power output measurements (MW and shp)
- Ability to interpret technical datasheets and diagrams
- Research the specifications of the P&O ship "Aurora" motor from its datasheet
- Investigate the design and performance of nuclear submarine propulsion systems
- Explore the differences between synchronous motors and hot water turbines in marine applications
- Learn about the sizing and scaling of marine electric motors for various vessels
Marine engineers, naval architects, and professionals involved in ship propulsion system design will benefit from this discussion.
- #2
berkeman
Admin
- 69,345
- 24,661
How big are nuclear submarine motors? Off to google I go...
- #3
gcomyn
- 3
- 0
The P&O ship "Aurora" uses 20 MW motors but I can't find how big they are anywhere...
- #4
berkeman
Admin
- 69,345
- 24,661
I googled nuclear submarine motor size, and got lots of hits. Here's one of the first ones -- pretty interesting info:berkeman said:
http://www.fas.org/man/dod-101/sys/ship/ssn-688.htm
Oops, I just reallized that they drive the propeller shaft directly with the hot water turbine, not via an electric motor. My bad. But 35,000 shp is about 26MW, which is in your size range. Hmmm, what else uses a motor that size... Maybe an old diesel submarine. I'd head off to google again, but I need to get back to work...here comes the boss!
- #5
gcomyn
- 3
- 0
"Aurora" datasheet here
http://www.solentwaters.co.uk/Article%20Chest/Cruise%20Ship%20Diesel%20Electric%20Propulsion.pdf
http://www.solentwaters.co.uk/Article%20Chest/Cruise%20Ship%20Diesel%20Electric%20Propulsion.pdf
Last edited by a moderator:
- #6
berkeman
Admin
- 69,345
- 24,661
Well if that drawing is to scale, then that gives you the motor size, right? Is that what you're looking for?gcomyn said:
Last edited by a moderator: