|May5-12, 01:50 PM||#1|
Calculating the efficiency of a water turbine
I am having trouble calculating the efficiency of a water turbine. The turbine in question closely represents a cross flow water turbine.
I have tested the power rating experimentally using a small DC motor and have found the output to be 400 mW.
I now need to find the power rating theoretically, I know there is a force of 155 N acting upon the blade of the turbine. The distance between the centre of the shaft and the edge of the blade is 25mm.
I know the velocity of water before hitting the turbine to be 20 m/s.
Many thanks in advance for any help you can give me!
|angular velocity, power, torque, water turbines|
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