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A hydraulic power system, as shown in the picture, has an elevation difference between the reservoir...
9) Electrical power is to be generated by installing a hydraulic turbine-generator at a site 70...
9) Electrical power is to be generated by installing a hydraulic turbine-generator at a site 70 m below the free surface of a large water reservoir that can supply water at a rate of 1500 kg/s steadily. If the mechanical power output of the turbine is 800 kW and the electric power generation is 350 kW, determine the turbine efficiency and the combined turbine-generator efficiency of this plant. Neglect losses in the pipes. (10pts).
What power to be supplied by turbine to the shaft of generator? The discharge supplied by...
What power to be supplied by turbine to the shaft of generator? The discharge supplied by the penstock is 9.99 m/s, h = 1.9 m, efficiency of the turbine is 70%. Water temperature is 10°C. Elevation 99 m Perstock Powerhouse Elevation 49 m Turbine P6734 kW P-4714 kW P-3300 W P = 3300 kW
At the maximum rate of power generation, a small hydroelectric power plant takes a discharge of...
At the maximum rate of power generation, a small hydroelectric power plant takes a discharge of 16.2 m/s through an elevation drop of 61 m. The head loss through the intakes, penstock, and outlet works is 5.8 m. The turbine, combined with the electrical generator, is able to convert 86% of the mechanical energy into electrical energy. What is the rate of electrical power generation? The water temperature is 15°C. Elevation = 61 m Penstock Powerhouse 4 Elevation = 0...
Problem 4: Water is being discharged from a reservoir through a turbine, as shown in figure...
Problem 4: Water is being discharged from a reservoir through a turbine, as shown in figure below. The head loss for the 300-mm pipeline is 0.05 m/m (0.05 m per meter of pipe), and it is 0.0017 m/m for the 600-mm pipe a) Determine the elevation of the water surface in the reservoir that should be required in order for the turbine to generate 56 kW of power b) What would be the water elevation required in the reservoir if...
A transmission pipeline that conveys water from an upstream reservoir to a downstream reservoir is indicated below. The transmission main has a valve along its length that controls the discharge in th...
A transmission pipeline that conveys water from an upstream
reservoir to a downstream reservoir is indicated below. The
transmission main has a valve along its length that controls the
discharge in the system. The discharge through the valve is
computed with the valve equation below. The pipeline has a length
of 4,500 m, a Hazen-Williams 'C' factor of 110, and an inner
diameter of 450 mm. The upstream reservoir has a water level of 105
m. The valve discharge constant...
Water (p=998kg/m^3, u=0.001Pa*s) flows from reservoir A to reservoir B through the piping system shown. Each...
Water (p=998kg/m^3,
u=0.001Pa*s) flows from reservoir A to reservoir B through the
piping system shown. Each elbow has a minor loss coefficient of
1.2. Each valve has a minor loss coefficient of 3.2. The entrance
and exit are both sharp edged. Determine the flow rate L/min. You
now need to modify the piping system to increase the flow rate to
100L/min by reducing the length of the 25mm pipe. What must new
length of the 25mm pipe be?
86. Water...
a) A hydro-electric power station has a reservoir of area 2.4 square kilometre and capacity 5milliom...
a) A hydro-electric power station has a reservoir of area 2.4 square kilometre and capacity 5milliom cubic metres. the effective haed of water is 100m, the penstock, turbine and generator efficiencies are 955,90% and 85% respectively. i) Calculate the total electrical energy that can be generated from the power station ii) if the load of 15MW has been supplied for 3 hours, find the fall in reservoir level b) Determine the most economical conductor cross section area to transmit a...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is in...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is installed in the pipeline with a minor head loss coefficient k 10. The pipe from Reservoir 1 to the globe valve is 1000 ft long and 6 inches in diameter. The pipe from the globe valve to Reservoir 2 is also 1000 ft...
(b) Figure Q3 shows a design of a plumbing system to be used in a new building. Water at 20°C is ...
(b) Figure Q3 shows a design of a plumbing system to be used in a new building. Water at 20°C is free to be pumped from reservoir A to another reservoir B at a higher elevation through two 30 m long pipes connected in parallel on a common elevation level. The difference between the water surface elevations is 10 m. The pipes are made of commercial brass and the diameters of the two pipes are 4 cm and 8 cm....
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir ...
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir upstream (Section"1") through two mortar lined steel circular pipes arranged in series to another large reservoir downstream (Section "2") as shown in Figure E4.7 The upstream pipe is 80 m long and 0.15 m in diameter, whereas the downstream pipe is 50 m long and 0.1 m in diameter. Both pipes have sharp-edged entrance and exit. Consider both major and minor losses. Determine...
9) Electrical power is to be generated by installing a hydraulic turbine-generator at a site 70 m below the free surface of a large water reservoir that can supply water at a rate of 1500 kg/s steadily. If the mechanical power output of the turbine is 800 kW and the electric power generation is 350 kW, determine the turbine efficiency and the combined turbine-generator efficiency of this plant. Neglect losses in the pipes. (10pts).
What power to be supplied by turbine to the shaft of generator? The discharge supplied by the penstock is 9.99 m/s, h = 1.9 m, efficiency of the turbine is 70%. Water temperature is 10°C. Elevation 99 m Perstock Powerhouse Elevation 49 m Turbine P6734 kW P-4714 kW P-3300 W P = 3300 kW
At the maximum rate of power generation, a small hydroelectric power plant takes a discharge of 16.2 m/s through an elevation drop of 61 m. The head loss through the intakes, penstock, and outlet works is 5.8 m. The turbine, combined with the electrical generator, is able to convert 86% of the mechanical energy into electrical energy. What is the rate of electrical power generation? The water temperature is 15°C. Elevation = 61 m Penstock Powerhouse 4 Elevation = 0...
Problem 4: Water is being discharged from a reservoir through a turbine, as shown in figure below. The head loss for the 300-mm pipeline is 0.05 m/m (0.05 m per meter of pipe), and it is 0.0017 m/m for the 600-mm pipe a) Determine the elevation of the water surface in the reservoir that should be required in order for the turbine to generate 56 kW of power b) What would be the water elevation required in the reservoir if...
A transmission pipeline that conveys water from an upstream
reservoir to a downstream reservoir is indicated below. The
transmission main has a valve along its length that controls the
discharge in the system. The discharge through the valve is
computed with the valve equation below. The pipeline has a length
of 4,500 m, a Hazen-Williams 'C' factor of 110, and an inner
diameter of 450 mm. The upstream reservoir has a water level of 105
m. The valve discharge constant...
Water (p=998kg/m^3,
u=0.001Pa*s) flows from reservoir A to reservoir B through the
piping system shown. Each elbow has a minor loss coefficient of
1.2. Each valve has a minor loss coefficient of 3.2. The entrance
and exit are both sharp edged. Determine the flow rate L/min. You
now need to modify the piping system to increase the flow rate to
100L/min by reducing the length of the 25mm pipe. What must new
length of the 25mm pipe be?
86. Water...
Problem 3 A pipeline delivers water from Reservoir 1 to Reservoir 2 as shown in the following figure. The water levels at Reservoirs 1 and 2 are 50 ft and 20 ft, respectively. A globe valve is installed in the pipeline with a minor head loss coefficient k 10. The pipe from Reservoir 1 to the globe valve is 1000 ft long and 6 inches in diameter. The pipe from the globe valve to Reservoir 2 is also 1000 ft...
(b) Figure Q3 shows a design of a plumbing system to be used in a new building. Water at 20°C is free to be pumped from reservoir A to another reservoir B at a higher elevation through two 30 m long pipes connected in parallel on a common elevation level. The difference between the water surface elevations is 10 m. The pipes are made of commercial brass and the diameters of the two pipes are 4 cm and 8 cm....
Water (density = 1000 kg/m3, viscosity = 1.15 x 10-3 N-s/m2) is delivered from a large reservoir upstream (Section"1") through two mortar lined steel circular pipes arranged in series to another large reservoir downstream (Section "2") as shown in Figure E4.7 The upstream pipe is 80 m long and 0.15 m in diameter, whereas the downstream pipe is 50 m long and 0.1 m in diameter. Both pipes have sharp-edged entrance and exit. Consider both major and minor losses. Determine...
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