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ponse Question 2017 Question 2 10 points ICLO 2) The water behind a dam is 195...
uestion 2 10 points Save Answer (CLO 2) The water behind a dam is 185 m...
uestion 2 10 points Save Answer (CLO 2) The water behind a dam is 185 m higher than the River below it. At what rate must water pass through the hydraulic turbines of this dam in kg/s to produce 125 MW of power if the turbines are 0.96 percent efficient?
The water behind a dam in Nevada is 241 m higher than the river below it....
The water behind a dam in Nevada is 241 m higher than the river below it. At what rate must water pass through the hydraulic turbines of this dam to produce 82 MW of power if the turbines are 100 percent efficient? kg/s
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate...
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate electricity. a) What is U, of 1.0 kg of water? b) Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 50 MW of electricity? This is a typical value for a small hydroelectric dam.
16. + 1/2 points Previous Answers OSColPhys2016 12.3.P.025. My Notes + Ask Your Teacher Hoover Dam...
16. + 1/2 points Previous Answers OSColPhys2016 12.3.P.025. My Notes + Ask Your Teacher Hoover Dam on the Colorado River is the highest dam in the United States at 221 m, with an output of 1300 MW. The dam generates electricity with water taken from a depth of 103 m and an average flow rate of 665 m/s. (a) Calculate the power in this flow in watts. 672.4 X W (b) What is the ratio of this power to the...
water 248 m 945 ml 2 Water Pipe GENERATOR TURBINE 1) A dam in somewhere with a height of 248 m, is one of the tallest dam in the world. Water flows with a volumetric flow rate of 65 m'ls to a tur...
water 248 m 945 ml 2 Water Pipe GENERATOR TURBINE 1) A dam in somewhere with a height of 248 m, is one of the tallest dam in the world. Water flows with a volumetric flow rate of 65 m'ls to a turbine, where electric power is generated. The total irreversible head los in the piping system from point 1 to point 2 (excluding the turbine unit) is determined to be 95 m. The pressure difference due to elevation cannot...
This question is worth 12 marks. A lake high up in the mountains supplies water to...
This question is worth 12 marks.
A lake high up in the mountains supplies water to a
hydroelectric power station similar to Trawsfynydd Lake shown in
Figure 1.
Figure 1 Trawsfynydd Lake that feeds water to
Maentwrog hydroelectric power station, Wales
The surface of the lake is 1000m above sea-level and the deepest
point in the lake is 180m below its surface. Assume that the water
has a uniform density of and
that
.
a.Figure 2 shows the cross-section of...
Question 2 Question 2 of 5 10 points Steam enters an adiabatic turbine at 10 MPa...
Question 2 Question 2 of 5 10 points Steam enters an adiabatic turbine at 10 MPa and 500"C and leaves at 10 kPa with a quality of 69 percent. The plant has power rating of 10 MW Neglecting the changes in the cand potent energies, determine the following enthalpy of steam at the entrance 3375.1 InkJ/kg enthalpy of steam at the exit 1842.4 InkJ/kg mass flow rate in kg's
Question #2 10 marks) A heat engine that uses water as the working fluid is being...
Question #2 10 marks) A heat engine that uses water as the working fluid is being used to produce power in a certain location. The condenser of the heat engine is being cooled by drawing 200 kg/s of water from a nearby lake at 25°C and discharging it at 50°C. The thermal efficiency of the heat engine is 40%. Furnace Boiler Condenser 25°C | water from lake 200 kg/s V 50°C water returned to the lake Calculate: i) The amount...
QUESTION 4 points Save Answer You are the sustainability coordinator for a company and are evaluating...
QUESTION 4 points Save Answer You are the sustainability coordinator for a company and are evaluating green energy options. You get a company to lend you a biomass-to- energy (B2E) system for a 30-day trial. The B2E system is 34% efficient and you need 1.5 MW of power to meet the company's energy needs. You also plan to use the waste heat for hot water, which is needed at a flow rate of 0.02 m3/s. A neighboring company produces waste...
thermo question 2. (20 points) Steam enters a turbine operating at steady state at 2 MPa,...
thermo question
2. (20 points) Steam enters a turbine operating at steady state at 2 MPa, 360°C with a velocity of 100 m/s. Saturated vapor exits at 0.1 MPa and a velocity of 50 m/s. The elevation of the inlet is 3 m higher than at the exit. The mass flow rate of the steam is 15 kg's, and the power developed is 7 MW. Let g -9.81 m/s Determine (a) the area at the inlet, in m, and (b)...
uestion 2 10 points Save Answer (CLO 2) The water behind a dam is 185 m higher than the River below it. At what rate must water pass through the hydraulic turbines of this dam in kg/s to produce 125 MW of power if the turbines are 0.96 percent efficient?
The water behind a dam in Nevada is 241 m higher than the river below it. At what rate must water pass through the hydraulic turbines of this dam to produce 82 MW of power if the turbines are 100 percent efficient? kg/s
25. In a hydroelectric dam, water falls 25 m and then spins a turbine to generate electricity. a) What is U, of 1.0 kg of water? b) Suppose the dam is 80% efficient at converting the water's potential energy to electrical energy. How many kilograms of water must pass through the turbines each second to generate 50 MW of electricity? This is a typical value for a small hydroelectric dam.
16. + 1/2 points Previous Answers OSColPhys2016 12.3.P.025. My Notes + Ask Your Teacher Hoover Dam on the Colorado River is the highest dam in the United States at 221 m, with an output of 1300 MW. The dam generates electricity with water taken from a depth of 103 m and an average flow rate of 665 m/s. (a) Calculate the power in this flow in watts. 672.4 X W (b) What is the ratio of this power to the...
water 248 m 945 ml 2 Water Pipe GENERATOR TURBINE 1) A dam in somewhere with a height of 248 m, is one of the tallest dam in the world. Water flows with a volumetric flow rate of 65 m'ls to a turbine, where electric power is generated. The total irreversible head los in the piping system from point 1 to point 2 (excluding the turbine unit) is determined to be 95 m. The pressure difference due to elevation cannot...
This question is worth 12 marks.
A lake high up in the mountains supplies water to a
hydroelectric power station similar to Trawsfynydd Lake shown in
Figure 1.
Figure 1 Trawsfynydd Lake that feeds water to
Maentwrog hydroelectric power station, Wales
The surface of the lake is 1000m above sea-level and the deepest
point in the lake is 180m below its surface. Assume that the water
has a uniform density of and
that
.
a.Figure 2 shows the cross-section of...
Question 2 Question 2 of 5 10 points Steam enters an adiabatic turbine at 10 MPa and 500"C and leaves at 10 kPa with a quality of 69 percent. The plant has power rating of 10 MW Neglecting the changes in the cand potent energies, determine the following enthalpy of steam at the entrance 3375.1 InkJ/kg enthalpy of steam at the exit 1842.4 InkJ/kg mass flow rate in kg's
Question #2 10 marks) A heat engine that uses water as the working fluid is being used to produce power in a certain location. The condenser of the heat engine is being cooled by drawing 200 kg/s of water from a nearby lake at 25°C and discharging it at 50°C. The thermal efficiency of the heat engine is 40%. Furnace Boiler Condenser 25°C | water from lake 200 kg/s V 50°C water returned to the lake Calculate: i) The amount...
QUESTION 4 points Save Answer You are the sustainability coordinator for a company and are evaluating green energy options. You get a company to lend you a biomass-to- energy (B2E) system for a 30-day trial. The B2E system is 34% efficient and you need 1.5 MW of power to meet the company's energy needs. You also plan to use the waste heat for hot water, which is needed at a flow rate of 0.02 m3/s. A neighboring company produces waste...
thermo question
2. (20 points) Steam enters a turbine operating at steady state at 2 MPa, 360°C with a velocity of 100 m/s. Saturated vapor exits at 0.1 MPa and a velocity of 50 m/s. The elevation of the inlet is 3 m higher than at the exit. The mass flow rate of the steam is 15 kg's, and the power developed is 7 MW. Let g -9.81 m/s Determine (a) the area at the inlet, in m, and (b)...
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