Question

A small town decides to use its water tower to generate emergency power. The water tank holds approximately 50,000 gallons of water, and its top surface is maintained at an elevation, Az, of 33 m above the ground. The town typically needs 250 kW of power. They have an available, 92%-efficient generator, which operates at 60 Hz. They also have an interconnected gearbox with a 5:1 ratio, which can permit lower turbine rotational speeds. a. What type of turbine should they select? Justify your answer using the b. Neglecting frictional and minor losses, what water flow rate will be needed c. Based on the tank capacity, how many hours can this system operate at specific speed to generate the desired power? Consider the turbine and generator efficiencies in your calculation. emergency conditions?

Answer 1

Ans ven thak tevecve have →Power produce d ) ne → Loki tu rbine ebti cienc S o lex Pe vailablet tbine

tabine 30 20 0 O qg & x9.rqy33: 10 oo x N uibine (P F *n) turbine e 12 60 Speci tic u slu 335/

d tehine 6 32.8