A 100ft waterfall has a flow rate of 1000 kg/s is to be used to generate...
A 100ft waterfall has a flow rate of 1000 kg/s is to be used to generate power by striking fins located on the perimeter of a wheel. Determine the power generation potential of this stream of water.
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A 100ft waterfall has a flow rate of 1000 kg/s is to be used to
generate...
Water flows over a section of a waterfall at the rate of 2.5 ✕ 104 kg/s...
Water flows over a section of a waterfall at the rate of 2.5 ✕ 104 kg/s and falls 27 m. How much power is generated by the falling water? watts
6. A 20-kg/s flow of waste water at 85 °C is used to generate power with...
6. A 20-kg/s flow of waste water at 85 °C is used to generate power with a surrounding temperature of 25 C. What is the maximum power output? (in MW) (a) 1.19 (d) 1.83 (b) 3.54 (e) 1.25 (c) 2.89 Answer:
Consider a mountain stream with an effective head of 20 meters (m) and a flow rate...
Consider a mountain stream with an effective head of 20 meters (m) and a flow rate of 800 liters per seconds. 3 How much power could Assume plant efficiency of 75% and the density of water is 1000 kg/m the hydro power plant generate?
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...
Mass Flow Rate Problem
Water exiting the condenser of a power plant at 38ºC enters a cooling tower with a massflow rate of 4.5 x 107 kg/h. A stream of cooled water is returned to the condenser from acooling tower with a temperature of 30ºC and the same flow rate. Makeup water is addedin a separate stream at 20ºC. Atmospheric air enters the cooling tower at 25ºC and 35%relative humidity. Moist air exits the tower at 30ºC and 95% relative humidity.Determine the mass flow...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350...
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
A paddle wheel is immersed in a river current to generate shaft power. The velocity of...
A paddle wheel is immersed in a river current to generate shaft power. The velocity of the river flow is U-10m/s. to simplify the calculation, assume that only one paddle submerged in the water and its working condition is such that it is always at the exact vertical position as shown in the figure (evern though the paddle wheel rotates continuously) Also assume that the paddles are circular disks. The dimension of the apparatuses is given in the figure. the...
Two flow streams of water, one at 0.6 MPa, saturated vapor (note that this is saturated steam-only vapor) at a rate of 2.11 kg/s, and the other one at 0.6 MPa, 600°C at a rate of 2.52 kg/s, mix adiabatically in a steady flow process to produce a single fl
Two flow streams of water, one at 0.6 MPa, saturated vapor (note that this is saturated steam-only vapor) at a rate of 2.11 kg/s, and the other one at 0.6 MPa, 600°C at a rate of 2.52 kg/s, mix adiabatically in a steady flow process to produce a single flow out at 0.6 MPa. Determine the temperature (°C) of the flow out stream.Please use SI units
Water from a large tank is used to generate electricity by installing a hydraulic turbine- generator...
Water from a large tank is used to generate electricity by installing a hydraulic turbine- generator at 100 m down from the water surface as shown in Figure QS. The water is supplied to the turbine at a rate of 2000 kg's. If the mechanical power input of the turbine is 1800 kW and the generator efficiency is 80%, determine the percentage reduction of efficiency between generator alone and combination of turbine-generator Consider the water density as 1000 kg/m (7...
The water in a large lake is to be used to generate electricity by the installation...
The water in a large lake is to be used to generate electricity by the installation of a hydraulic turbine generator at a location where the depth of the water is 50 m. Water is to be supplied at a rate of 5000 kg/s. If the electric power generated is measured to be 1862 kW and the generator efficiency is 95 percent, determine (a) the overall efficiency of the turbine-generator, (b) the mechanical efficiency of the turbine, and (c) the...
6. A 20-kg/s flow of waste water at 85 °C is used to generate power with a surrounding temperature of 25 C. What is the maximum power output? (in MW) (a) 1.19 (d) 1.83 (b) 3.54 (e) 1.25 (c) 2.89 Answer:
Consider a mountain stream with an effective head of 20 meters (m) and a flow rate of 800 liters per seconds. 3 How much power could Assume plant efficiency of 75% and the density of water is 1000 kg/m the hydro power plant generate?
1. A steam turbine has an inlet of 2 kg/s water at 1000 kPa and 350 °C with a velocity of 15 m/s. The exit is at 100 kPa, 150 °C, and very low velocity. Determine the power produced. 2. A small expander (a turbine with a heat transfer) has 0.05 kg helium entering at 1000 kPa, 550 K, and it leaves at 250 kPa, 300 K. The power output on the shaft is measured at 55 kW. Determine the...
A paddle wheel is immersed in a river current to generate shaft power. The velocity of the river flow is U-10m/s. to simplify the calculation, assume that only one paddle submerged in the water and its working condition is such that it is always at the exact vertical position as shown in the figure (evern though the paddle wheel rotates continuously) Also assume that the paddles are circular disks. The dimension of the apparatuses is given in the figure. the...
Water from a large tank is used to generate electricity by installing a hydraulic turbine- generator at 100 m down from the water surface as shown in Figure QS. The water is supplied to the turbine at a rate of 2000 kg's. If the mechanical power input of the turbine is 1800 kW and the generator efficiency is 80%, determine the percentage reduction of efficiency between generator alone and combination of turbine-generator Consider the water density as 1000 kg/m (7...
The water in a large lake is to be used to generate electricity by the installation of a hydraulic turbine generator at a location where the depth of the water is 50 m. Water is to be supplied at a rate of 5000 kg/s. If the electric power generated is measured to be 1862 kW and the generator efficiency is 95 percent, determine (a) the overall efficiency of the turbine-generator, (b) the mechanical efficiency of the turbine, and (c) the...
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