A turbine is rated at 600hp when the flow of water through it is 82cu.m/sec. Assuming an efficiency of 92%, what is the head acting on the turbine?
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A turbine is rated at 600hp when the flow of water through it is 82cu.m/sec. Assuming an efficiency of 92%, what is the head acting on the turbine?
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- Water 300 mm d 300 mm Problem 4.113 4.113. This turbine develops 75 kw when the flowrate is 0.6 m's what flowrate may be expected if the turbine is removed?How many kW are delivered by the water flow to the turbine? O 62 kW O 85 kW O 77 kW O 70 kWAt the point of operation with maximum efficiency, a turbine indicated unit power of 12 units and unit speed of 98 units and operates with 3300 kgf/ s of flow. What is the speed in rpm and the specific speed of the machine respectively when its design head is 8.5m?
- The diameter of a single reciprocating pump is 100 mm and its stroke length is 200 mm. The pumpaa at 90 rpm and lifts water through a height of 35m. Calculate the power required to run the pumpA turbine system is harnessing the energy of flowing water from reservoir 1 to reservoir 2. The difference in elevation between the two reservoirs is 120ft. For a design ftowrate of 50ft^3/s, the head loss is 60ft. Solve the theoretical power extracted by the turbine. Neglect the difference in atmospheric pressure between the reservoirs. O 1022hp O 490hp O 341hp O 817hp1. The velocity of water is 8 m/s and the pressure is 140 kPa on the discharge side of a pump. a. What is the head of the pump if the velocity is 4 m/s and the pressure is 90 kPa on the suction side of the pump? b. How much power is required to drive it if the diameter of the suction side is 600 mm? c. If the pump is rated at 120 hp, what is the efficiency of the pump neglecting energy losses in the system? Pj=90 kPa P>=140 kPa Vj=4m/s ♡ Vz=8m/s Suction side Discharge side 600 mum
- 3. A pump draws water at 300 liters per second from reservoir A and lifts it to reservoir B as shown. The head loss from A to 1 is 20 times the velocity head in the 200 mm diameter and the head loss from 2 to B is 20 times the velocity head in the 150-mm diameter pipe. Assume your own reservoir B elevation then compute for the energy that must be supplied to the pump in kW if said appurtenance has an efficiency of 80%. Compute also the pressure at points 1 and 2. Reservoir A 200 mm pipe Pump 150 mm Reservoir B3. A pump draws water at 300 liters per second from reservoir A and lifts it to reservoir B as shown. The head loss from A to 1 is 20 times the velocity head in the 200 mm diameter and the head loss from 2 to B is 20 times the velocity head in the 150-mm diameter pipe. Assume your own reservoir B elevation then compute for the energy that must be supplied to the pump in kW if said appurtenance has an efficiency of 80%. Compute also the pressure at points 1 and 2. Reservoir A 200 mm pipe Elevation=-20 m Point 1 Point 2 Pump 150 mm A Reservoir BThe change in head across a small turbine is 10 m, the flow rate of water is 1 m³/s and the efficiency are 80%. The power developed by the turbine is approximately:
- 4.112. The turbine extracts from the flowing water half as much energy as remains in the jet at the nozzle exit. Calculate the power of the turbine. Water 300 mm d 300 mn d 30 m 300 mm d 300 mm d 150 mm d Problem 4.112 Problem 4.113 4.113. This turbine develops 75 kw when the flowrate is 0.6 m/s, what flowrate may e expected if the turbine is removed?Problems A Kaplan turbine develops 8,000 HP under an effective head of 5 m. Its speed ratio is 2 and flow ratio is 0.6 and the diameter of the boss = 0.35 times the external diameter of the runner. Efficiency of the turbine is 90 percent. Calculate the diameter of the runner, speed of the runner and also its specific speed. Take 1 HP = 735.75 watt and calculate specific speed with power unit in HP.If a horizontal force of 890 N is developed by the water jet leaving the pipe on the 90° deflector plate shown in figure below, what is the power produced by the turbine knowing that its efficiency is 90%. Neglect losses. Water 150 mm dia jet ceflector plate