A new hydraulic turbine is to be designed to be similar to an existing turbine with following

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A new hydraulic turbine is to be designed to be similar to an existing turbine with following parameters at its best efficiency point: DA = 3 m, ṅA = 90 rpm, V̇A = 200 m3/s, HA = 55 m, bhpA = 100 MW. The new turbine will have a speed of 110 rpm and the net head will be 40 m. What is the bhp of the new turbine such that it operates most efficiently?

(a) 17.6 MW 

(b) 23.5 MW 

(c) 30.2 MW 

(d) 40.0 MW

(e) 53.7 MW

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