A simple cross flow turbine, Fig P11 93 above, was constructed and tested at the University of Rhode Island The blades were made of PVC pipe cut lengthwise into three 120 61616 arc pieces When tested in water at a heads of 5 3 ft and a flow rate of 630 gal min, the measured power output was 0 6 hp Estimate (a) The efficiency and (b) The power specific speed if n 61472 200 rpm

Question: A simple cross flow turbine, Fig P11.93 above, was constructed and tested at the University of Rhode Island. The blades were made of PVC pipe

A simple cross flow turbine, Fig P11.93 above, was constructed and tested at the University of Rhode Island. The blades were made of PVC pipe cut lengthwise into three 120-arc pieces. When tested in water at a heads of 5.3 ft and a flow rate of 630 gal/min, the measured power output was 0.6 hp. Estimate
(a) The efficiency; and
(b) The power specific speed if n ≈200 rpm.

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