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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- Design head at China’s Three Gorges Dam, the largest hydropower project in the world, is 80.6 m, and rated power output of each of the 32 turbine generator units is 700 MW. If the efficiency of each of the turbine generator units at full power output is 93.2%, what is the design flow through each turbine?A rectangular channel having a width of 3 m. carries water flowing at a rate of 20 m3/s. If the depth of water in the channel is 1.2 m., compute the critical kinetic energy in meter. a. 1.290 b. 0.480 c. 0.825 d. 2.567What is the cost to pump 1000 liters of water to the top of a 30 m high water tank? Assume a pumping efficiency of 50% and an electrical cost of $0.15 per KW-h. P(h2O) = 1000 ?g/m^3 . 1 m^3 = 1000 liters
- Water flows through a 7.5 m diameter penstock on a dam at a flow rate of 113 m3/s. The total head available for the turbine is 18.4 m. The specifiic weight of water is 9810 N/m3. What is the power generated by the turbine?The flow of a river is 150 cubic feet per second at a site where a 75 feet hydrostatic head canbe created by the erection of a dam. What is the potential capacity (in kW) of a hydroelectricpower plant if installed at this site? Consider that hydraulic efficiency of energy conversioncan be 80%, and that the electric efficiency can be 90%.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?
- A pipe is used to deliver water at a rate of 3.8 m³/s from the intake to the turbine. The difference in elevation between the intake’s water surface and the turbine is 200 m. Knowing the headloss in the pipeline from the intake to the turbine is 8 m, find the power (in kW) generated by the turbine if its efficiency is 80%.A turbine is installed with a total energy head of 14.97 m. if the rate of flow is 0.48 m3/s,determine the following:a. The input horsepower of the turbine.b. If the efficiency of the turbine is 82 %, compute its output hp.Water leaving the nozzle at a velocity of 4350 m/min with a volume flow rate of 0.736 m³ . if the density of water is 0.000997 kg/cm³ . How will you determine the potential for power generation in a hydraulic turbine .
- Pump BC shown brings oil (SG = 0.72) to reservoir D at 170 L/sec. The energy lost from A to B is 1.1 J/N and from C to D is 4.7 J/N. How many hp is needed for the pump to function if its efficiency is just 80%? a)86.531 hp b)135.204 hp c)187.785 hp d)120.182 hpWater flows through the turbine shown at a rate of 0.386 m3/s. The pressures at points A and B are 161.2 kPa and -19.6 kPa, respectively. What is the electrical power generated by the turbine if it is 85% efficient?PROBLEM 5: A turbine, located at an elevation 255 m below that of the water surface at intake, carries a flow of 3.5 m^3/s. The head loss in the pipeline leading to it is 10 m. Find the horsepower delivered by the turbine if its efficiency is 92%. (746 watts = 1 HP). Illustrate the problem and show your complete solution.