A hydro power station uses Pelton turbine to generate power from a water body behind a...
A hydro power station uses Pelton turbine to generate power from a water body behind a dam which has the height of 40 m. (a) Estimate the maximum jet speed to be used to drive the Pelton turbine. (b) The height of the dam water remain constant as a results of a river, with flow rate of 500 m3 s −1 , flowing into the dam reservoir. Estimate the power generating capacity of this river-dam configuration
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A hydro power station uses Pelton turbine to generate power from
a water body behind a...
3. In a small hydroelectric power station, the turbine uses the energy of the water in...
3. In a small hydroelectric power station, the turbine uses the energy of the water in the reservoir behind the dam to produce 12000 horsepower. The circular channels before and after the turbine have a diameter of 90 inches. If the head loss across the dam can be calculated from hloss=cV²/2g where c=8 and V is the water velocity in the circular channel, calculate the volumetric flow rate, Q, through the system and the corresponding head loss for h=400 ft...
A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow...
A Pelton wheel with an efficiency of 85% is used to produce hydroelectric power from flow of water behind a dam with an elevation head of 420 m. The average radius of the wheel and its angular velocity are 2.0 m and 220 rpm, respectively. This turbine works at its optimum rotation rate (which produces maximum power). The turning angle of the buckets is ? = 165° and nozzle diameter is given as 8.00 cm. a. Calculate volumetric flow rate...
Design a hydropower scheme using Pelton wheel turbine(s) to generate 2 MW of power. Assume an...
Design a hydropower scheme using Pelton wheel turbine(s) to generate 2 MW of power. Assume an efficiency for the turbine and justify any coefficients and/or parameters that is used in the design. The hydropower scheme should provide the following information: (a) Volumetric flow rate of the turbine (b) Number of jets (c) Velocity of the jet (d) Size of each jet (e) Size of the Pelton wheel
In a hydroelectric power station, the turbine is driven by water flowing from a reservoir at...
In a hydroelectric power station, the turbine is driven by water flowing from a reservoir at the rate of 551 m s. The water is pumped through a pipe 2.06 km long of 2.53 m intemal diameter with a friction factor of 0.004. The water is assumed to have a kinematic viscosity of 13x10 mʻls. The elevation of the upper reservoir above sea level is 400 m and that of the lower reservoir is 40 m. Determine the following Mean...
A micro hydro turbine is used to generate hydroelectric power by letting liquid water from a...
A micro hydro turbine is used to generate hydroelectric power by letting liquid water from a high elevation run through the turbine to a low elevation. The turbine is under a steady state operation condition. The inlet water and outlet water are at elevations of 10 m and 2 m, respectively. The inlet and outlet diameters are 0.3 m and 0.5 m, respectively. The inlet pressure is 2.5 bar and the outlet pressure 1 bar. The inlet and outlet temperatures...
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...
A Pelton wheel installation uses a water jet of 75mm diameter to drive a wheel with...
A Pelton wheel installation uses a water jet of 75mm diameter to drive a wheel with the buckets on a diameter of 0.9m. The deflection angle of the buckets is 160 o .The relative velocity of the water is reduced by 12% while moving across the buckets. The rotational 8 speed is 320rpm, the total pressure behind the nozzle is 0.7Mpa and the velocity coefficient of the nozzle is 0.98. Determine 5.1 the hydraulic power developed by the wheel, 5.2...
1. The Davis Dam was constructed 67 miles downstream from the Hoover Dam. The reservoir formed...
1. The Davis Dam was constructed 67 miles downstream from the Hoover Dam. The reservoir formed by the dam is called Lake Mohave. The reservoir has a total storage capacity of 1,818,300 acre-feet. Given the average head of the reservoir is 136 feet, determine the potential energy of the water in the reservoir. 2. When the effective head of water behind the Davis Dam is 41 meters, a penstock 22 feet in diameter will flow 42,000 gallons of water per...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
a) The following figure shows a water dam built for a hydroelectric power project running constantly...
a) The following figure shows a water dam built for a hydroelectric power project running constantly round the year. During a dry season, it acts as water reservoir of constant height 80 m. Meanwhile rainy season, water flow of 3 m/s is added to the system. (Water density 10x10 kg/m' and volume flow, V = 45x10 m/s respectively and the gravitational acceleration is about 9.8 kg/m for both seasons). Evaluate the followings: Ravet afsec RE Figure 2: Water flow utilization...
3. In a small hydroelectric power station, the turbine uses the energy of the water in the reservoir behind the dam to produce 12000 horsepower. The circular channels before and after the turbine have a diameter of 90 inches. If the head loss across the dam can be calculated from hloss=cV²/2g where c=8 and V is the water velocity in the circular channel, calculate the volumetric flow rate, Q, through the system and the corresponding head loss for h=400 ft...
In a hydroelectric power station, the turbine is driven by water flowing from a reservoir at the rate of 551 m s. The water is pumped through a pipe 2.06 km long of 2.53 m intemal diameter with a friction factor of 0.004. The water is assumed to have a kinematic viscosity of 13x10 mʻls. The elevation of the upper reservoir above sea level is 400 m and that of the lower reservoir is 40 m. Determine the following Mean...
A micro hydro turbine is used to generate hydroelectric power by letting liquid water from a high elevation run through the turbine to a low elevation. The turbine is under a steady state operation condition. The inlet water and outlet water are at elevations of 10 m and 2 m, respectively. The inlet and outlet diameters are 0.3 m and 0.5 m, respectively. The inlet pressure is 2.5 bar and the outlet pressure 1 bar. The inlet and outlet temperatures...
The vertical drop of water in a hydroelectric power plant is 155m (See figure below). Water flows through the plant and into the lower river at the rate of 425m/s. Assume the overall efficiency of the plant as 80%. Density of water d is equal to 1000kg/m3 Acceleration due to gravity g is equal to 9.81m/s2. Ignore the viscous losses in the flowing water. Dam Water Reservoir Hm Turbine Generator River Figure: Schematic diagram of the hydroelectric power plant (a)...
a) The following figure shows a water dam built for a hydroelectric power project running constantly round the year. During a dry season, it acts as water reservoir of constant height 80 m. Meanwhile rainy season, water flow of 3 m/s is added to the system. (Water density 10x10 kg/m' and volume flow, V = 45x10 m/s respectively and the gravitational acceleration is about 9.8 kg/m for both seasons). Evaluate the followings: Ravet afsec RE Figure 2: Water flow utilization...
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