The power 484 W is required to transmit 6 x 10-3 m3/s of oil that has a head loss of 16 m.
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- The power 325 W is required to transmit 9 x 10-3 m3/s of oil that has a head loss of 12 m. Determine the density of the oil. The density of the liquid (in kg/m3)The amount of energy available to a stream flowing at 266 ft3/s and having a total head of 34 feet is: a. 456.34 hp b. 245.01 hp c. 765.46 kW d. 851.11 kWA fluid flows at 455 cubic meters per minute inside a rectangular duct, whose cross-section has a length of 150 cm and width of 85 cm. Determine the average velocity of the flow in m/s.
- Determine the discharge of a flowing fluid from a nozzle, whose specific gravity is 1.3, the nozzle is 15m above the datum. The power on the nozzle is 20KW and the velocity of flow is 10 m/s.Electric 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 (Fig. 2–60). If the mechanical power output of the turbine is 800 kW and the electric power generation is 750 kW, determine the turbine efficiency and the combined turbine–generator efficiency of this plant. Neglect losses in the pipes.A 6-cm-diameter horizontal water pipe expands gradually to a 9-cm-diameter pipe. The walls of the expansion section are angled 10° from the axis. The average velocity and pressure of water before the expansion section are 7 m/s and 150 kPa, respectively. Determine the head loss in the expansion section and the pressure in the larger-diameter pipe.
- A fluid is flowing in a 0.441 m x 1.915 m channel at the rate of 4.56 m/s and has specific volume of 2.716 m3/kg determine the mass of the fluid in kg/minIn an hydroelectric plant, 100 m^3/s of water flows from elevation of 120 m to a turbine, where electric power is generated. The overall efficiency of the turbine-generator is 80 percent Disregarding frictional losses in piping. Estimate the electric power output of this plant.A pipe line of length 2000 m is used for power transmission. If 110 kW power is to be transmitted through the pipe in which water having a pressure of 490.5 N/cm2at inlet is flowing. If the pressure drop over the length of pipe is 98.1 N/cm2and ff = 0.0065.Determine:The diameter of the pipe and the volume flow rate; and If a nozzle is introduced at the end of the pipe, what would be its diameter and the power transmitted.
- A river flowing steadily at a rate of 167 m3/s is considered for hydroelectric power generation.Determine the minimum elevation difference (meters) required to for the dam, in order togenerate 550 MWWater flows at a rate of 0.035 m3/s in a horizontal pipe whose diameter is reduced from 15 cm to 8 cm by a reducer. If the pressure at the centerline is measured to be 480 kPa and 457.3 kPa before and after the reducer, respectively, determine the pressure loss in the reducer. Take the density of water to be ρ = 1000 kg/m3 Ans: [22,300 Pa]Electric power is to be generated by installing a hydraulic turbine–generator at a site 110 m below the free surface of a large water reservoir that can supply water steadily at a rate of 900 kg/s. If the mechanical power output of the turbine is 800 kW and the electric power generation is 750 kW, determine the turbine efficiency and the combined turbine–generator efficiency of this plant. Neglect losses in the pipes.