1. (Mechanical Energy Balance) A hydroelectric plant consists of a stream flowing at 100 gal/min and...
1. (Mechanical Energy Balance) A hydroelectric plant consists of a stream flowing at 100 gal/min and 10 mph (miles per hour) before entering a turbine, after the turbine the stream flows at 8 mph (is unchanged.) (Problem courtesy of Evan Smith ChBE 201 '08) a. How much shaft work does the stream do on the turbine? Please express your answer in Sl units (J/s), [Hint: use mechanical energy balance.] b. If the turbine was replaced with 1 m2 solar cell panels that can collect 1 kJ/ m2-hr and there are8 hrs/day of sunlight, how many solar panels would be needec to replace the turbine? [Hint: Use a basis of 1 day for comparison.]