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Consider a mountain stream with an effective head of 20 meters (m) and a flow rate...
7.) A stream of water traveling at 20 m/s at the rate of 600 liters per...
7.) A stream of water traveling at 20 m/s at the rate of 600 liters per min. is directed horizontally against a vertical wall. The water spreads out along the wall without splashing back. What force does this stream exert on the wall? Note that the density of water is 1000 kg/cubic meter, and 1 liter = 10(negative 3 power) (cubic meter. (200 N)
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A...
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A nearby stream is 3.00 m wide and 0.500 m deep. Water flows at 1.20 m/s over the brink of a waterfall 5.00 m high. The manufacturer promises only 25.0% efficiency in converting the potential energy of the water-Earth system into electric energy. Find the power she can generate. (Large scale hydroelectric plants, with a much larger drop, are more efficient.) Hint: Density of water...
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...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
Z2 a) (30%) Assuming that the flow rate is Q = 3 x 103 m Consider...
Z2 a) (30%) Assuming that the flow rate is Q = 3 x 103 m Consider the flow of water through the circuit shown in the figure, moving water from reservoir A to reservoir B. The pipe is made of copper tubing with an inside diameter of 12 mm. For water take p = 1000 and v = 1.14 x 10-6. Assume that a = 1 everywhere. Elevation 75 m Pipe entrance 90° smooth Reservoir B Elevation 1/d = 0...
(b) The daily design load curve of a residential area is given in the table below. The hydropower facility providing the power has an effective head of 15 m and a plant efficiency of 0.85. What is th...
(b) The daily design load curve of a residential area is given in the table below. The hydropower facility providing the power has an effective head of 15 m and a plant efficiency of 0.85. What is the minimum daily flow (m3/s) that could meet the demand? What is the minimum required storage capacity (within-day storage) to meet the peak load? If the daily flowrate were 320m3/s, what would be the minimum required storage capacity? Would there be some water...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow rate of 1 m'/s. Design a settling chamber to collect particles 10 um in diameter having a density of 1700 kg/m3. The chamber is to be 1.5 m in width and 1.5 m in height. A) How long must the settling chamber be to give a theoretical perfect collection efficiency? B) Using the length determined (in part a), determine the collection efficiency for 5...
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...
Water is accelerated by a nozzle to an average speed of 20 m/s, and strikes a...
Water is accelerated by a nozzle to an average speed of 20 m/s, and strikes a stationary vertical plate at a rate of 10 kg/s with a normal velocity of 20 m/s. After the strike, the water stream splatters off in all directions in the plan of the plate. Determine the force needed to prevent the plate from moving horizontally due to the water stream. Assume that the density of water is =1000 kg/m3
A motor which is used to rotate a pump consumes 20 kW energy. Its efficiency is...
A motor which is used to rotate a pump consumes 20 kW energy. Its efficiency is 85%. a. What is the power delivered to the pump by the motor? b. The pump whose pipe diameter is 10 cm delivers the water at a mass flow rate 3 kg/s. What is the velocity of water? Assume density of water is 1000 kg/m3.
1. A person with a remote mountain cabin plans to install her own hydroelectric plant. A nearby stream is 3.00 m wide and 0.500 m deep. Water flows at 1.20 m/s over the brink of a waterfall 5.00 m high. The manufacturer promises only 25.0% efficiency in converting the potential energy of the water-Earth system into electric energy. Find the power she can generate. (Large scale hydroelectric plants, with a much larger drop, are more efficient.) Hint: Density of water...
theavton the ump.if the absolute pressure of the liquid drops below the vapor pressure then cavitation will occur Answer B) False A) True A centrifugal pump delivers water against a net head of 20 meters and a design speed of 1100 rpm. is 10 m/s. he impeller diameter is 0.4 m. Determine manometric efficiency of the pump, if Co2 Intr E) 95% D) 92% A) 85% C) 90% B) 88% Answer In Calculate net head or effective head for Pelton...
Z2 a) (30%) Assuming that the flow rate is Q = 3 x 103 m Consider the flow of water through the circuit shown in the figure, moving water from reservoir A to reservoir B. The pipe is made of copper tubing with an inside diameter of 12 mm. For water take p = 1000 and v = 1.14 x 10-6. Assume that a = 1 everywhere. Elevation 75 m Pipe entrance 90° smooth Reservoir B Elevation 1/d = 0...
(b) The daily design load curve of a residential area is given in the table below. The hydropower facility providing the power has an effective head of 15 m and a plant efficiency of 0.85. What is the minimum daily flow (m3/s) that could meet the demand? What is the minimum required storage capacity (within-day storage) to meet the peak load? If the daily flowrate were 320m3/s, what would be the minimum required storage capacity? Would there be some water...
2) Consider a setling chamber to treat a particulate ladened air stream having a volumetric flow rate of 1 m'/s. Design a settling chamber to collect particles 10 um in diameter having a density of 1700 kg/m3. The chamber is to be 1.5 m in width and 1.5 m in height. A) How long must the settling chamber be to give a theoretical perfect collection efficiency? B) Using the length determined (in part a), determine the collection efficiency for 5...
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