hmic21
Electrical
- Jul 5, 2005
- 18
Hello all,
I am having trouble finding a motor that can be used to power up a propeller to about 12 rpm then shut off and act as a generator with the propeller being driven by an underwater current. The obvious problem here is though we have a lot of torque, what motor can generate any significant amount of power at that low rpm? To make it even harder the motor must be able to fit in a nine inch in diameter pressure vessel. We are trying to avoid large ratio gears as much as possible to minimize loss. We are currently looking at testing a DC motor,Stepper motor, and a DC brushless to check for efficiency and amount of power produced. Has anyone ever delt with motors in a similar application and can give any suggestions?
I am having trouble finding a motor that can be used to power up a propeller to about 12 rpm then shut off and act as a generator with the propeller being driven by an underwater current. The obvious problem here is though we have a lot of torque, what motor can generate any significant amount of power at that low rpm? To make it even harder the motor must be able to fit in a nine inch in diameter pressure vessel. We are trying to avoid large ratio gears as much as possible to minimize loss. We are currently looking at testing a DC motor,Stepper motor, and a DC brushless to check for efficiency and amount of power produced. Has anyone ever delt with motors in a similar application and can give any suggestions?