Tuesday, January 16, 2018
critical speed of drum in case of rope brake dynamometer
In rope brake dynamometer , heat is genrated due to friction between rope & drum. So cooling is provided with the rope brake dynamometer . The drum is provided with flanges turned inside on the rim, forming a channel for the flow of water . Circulation of water from bottom to the top is possible onlu when centrifugal forceon water will be greater then its weight.
therefore Fc >=w
Fc-w=0
For equilibrium position of water in channel
Fc-w=0.
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