Engineering, 30.08.2019 00:20, Geo777

Agenerator is to be driven by a small pelton wheel with a head of 91.5m at inlet to the nozzle and discharge of 0.04m^3/s. the wheel rotates at 720rpm a n d the velocity coefficient of the nnozzle is 0.98. if the efficiency of the wheel (based on the energy available at entry to the nozzle) is 80 per cent and the ratio of bucket speed to jet speed is0.46, determine the wheel-to-.jet-di meter ratio at the centre-line of the buckets, and the speed of the wheel. what is the dimensionless power specific speed of the wheel?

Answers: 2

Show answers

Other questions on the subject: Engineering

Engineering, 04.07.2019 18:10, 19deleonl

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Answers: 2

continue

Engineering, 04.07.2019 18:10, keigleyhannah30

Aplate clutch has a single pair of mating friction surfaces 250-mm od by 175-mm id. the mean value of the coefficient of friction is 0.30, and the actuating force is 4 kn. a) find the maximum pressure and the torque capacity using the uniform-wear model. b) find the maximum pressure and the torque capacity using the uniform-pressure model.

Answers: 3

continue

Engineering, 04.07.2019 18:10, agpraga23ovv65c

Carbon dioxide gas expands isotherm a turbine from 1 mpa, 500 k at 200 kpa. assuming the ideal gas model and neglecting the kinetic and potential energies, determine the change in entropy, heat transfer and work for each kilogram of co2.

Answers: 2

continue

Engineering, 04.07.2019 18:20, AnonymousLizard52303

A2-m rigid tank initially contains saturated water vapor at 100 kpa. the tank is connected to a supply line through a valve. steam is flowing in the supply line at 600 kpa and 300 c. the valve is opened, and steam is allowed to enter the tank until the pressure in the tank reaches the line pressure, at which point the valve is closed. a thermometer placed in the tank indicates that the temperature at the final state is 200°c. determine (a) the mass of steam that has entered the tank (b) the amount of heat transfer.

Answers: 3

continue

Do you know the correct answer?

Agenerator is to be driven by a small pelton wheel with a head of 91.5m at inlet to the nozzle and d...