reaction turbine has guide vanes at an angle of 30° and the runner blades make an angle of 80° relative to the tangent at inlet. The blades width at the inlet is % of the outer diameter. The water does not have any tangential velocity at the outlet. The head is 25 m and the rotational speed of the runner is 16.67 rotations per second. The turbine efficiency is 88 %. Determine the turbine runner diameter at the inlet and the power developed.

reaction turbine has guide vanes at an angle of 30° and the runner blades make an angle of 80° relative to the tangent at inlet. The blades width at the inlet is % of the outer diameter. The water does not have any tangential velocity at the outlet. The head is 25 m and the rotational speed of the runner is 16.67 rotations per second. The turbine efficiency is 88 %. Determine the turbine runner diameter at the inlet and the power developed.

Refrigeration and Air Conditioning Technology (MindTap Course List)

8th Edition

ISBN:9781305578296

Author:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Publisher:John Tomczyk, Eugene Silberstein, Bill Whitman, Bill Johnson

Chapter40: Typical Operating Conditions

Section: Chapter Questions

Problem 10RQ: The seasonal energy efficiency ratio (SEER) includes the energy used in the _____and _____cycles.

See similar textbooks

Similar questions

A centrifugal pump driven by a 160-hp motor rotating at 2400 rpm is used to pump 70°F water in a manufacturing plant. The pump operates against a head of 100 ft and has an efficiency of 70%. If this pump is used against a head of 196 ft, how much water (in cfs) can the pump circulate?
The difference in elevation between the surface of the water in a storage reservoir and the intake to a turbine was 130 ft. it has a discharge of 45 ft3/s. If the inside diameter of the penstock is 37 inches, find the penstock efficiency.
A centrifugal pump driven by a 120-kW motor rotating at 2400 rpm is used to pump 20°C water in a manufacturing plant. The pump operates against a head of 30 m and has an efficiency of 70%. If this pump is used against a head of 60 m, how much water (in m3/s) can the pump circulate?
The velocity of water and pressure at the suction side of a pump is 4m/s and 90kPa respectively. If the velocity of water is 8m/s and the pressure is 140kPa on the discharge side of a pump, what is the head added by the pump?
FIND THE PERCENT SLIP OF A RECIPROCATING PUMP IF THE VOLUMETRIC EFFICIENCY IS 96%.
A centrifugal air compressor handles 200 cfm from 12 psia to 90 psia. The initial specific volume is 12.6 cu ft/ lb and the final specific volume is 3.25 cu ft/lb. If the inlet suction line is 4-in ID and the discharge line is 2.5-in ID, determine (a) the change in flow energy between the boundaries, ft-lb/min, (b) the mass rate of flow, lb/min, and the (c) change in velocity. (draw a diagram)
A centrifugal pump discharging 10 lps against 25 m of head and operating with an efficiency of 60% requires 4.1 kW at 1000 rpm. What is the theoretical discharge if the speed is increased to 1500 rpm assuming the efficiency remains constant? What is the theoretical head and kW at 1500 rpm?.
Water is pumped to a height with a total head of 39.36 meters. The available power is 60 cycles, 220 volts, three-phase. Find the horsepower of an electric motor to drive a centrifugal pump at 3450 rpm having a discharge pipe of 2 inches. Assume a water flow velocity of 5ft/sec and 70% pump efficiency. Find the monthly billing if the pump is running 30 days at 20 hours per day inoperation. The cost of electrical energy is Php 2.60 per kW-h. Assume motor efficiency of 85%.
A three stage pump delivers 2.66 m3/s against a head of 200 m with a speed of 2000 rpm. Find the specific speed (US)
A fuel pump is delivering 50 gals/min of oil with a specific gravity of 0.75. The total head is 30 meters. Find the motor that is capable of handling this pump in horsepower. Assume pump efficiency of 70% and motor efficiency of 80%. Select from the available motors provided: 1hp, 1.25hp, 1.5hp, 2 hp.
A turbine of Kaplan type operates under a dam on height of 30m, the discharge of water equal to 180m3/sec. the efficiency overall is 92%. Calculates the power produced by this turbine.
A fuel pump is delivering 18 gallons per minute of oil with a specific gravity of 0.80. The total head is 75 meters. If the power input to the pump is 1.1 hp, what is the eficiency of the pump?