Concept explainers
Water flows through the turbine shown in Fig. 7.28, at a rate of
Learn your wayIncludes step-by-step video
Chapter 7 Solutions
Applied Fluid Mechanics (7th Edition)
Additional Engineering Textbook Solutions
Engineering Mechanics: Statics & Dynamics (14th Edition)
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Engineering Mechanics: Dynamics (14th Edition)
Engineering Mechanics: Statics
Statics and Mechanics of Materials (5th Edition)
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
- A pump draws water from reservoir A and lifts it to reservoir B. The loss of head from A to 1 is 3 times the velocity head in the 6 inch pipe and loss of head from 2 to B is 20 times the velocity head in the 4 inch pipe. Compute the horsepower output of the pump and the pressure heads at 1 and 2 when the discharge is 200 pgm. B EL 240 ft Water 4 inch pipe EL 0 Pump 2. Water EL -20 ft 6 inch pipearrow_forwardA pump draws water from reservoir A and lifts it to reservoir B as shown in figure 4. Elev. of water at reservoir A is 10m.The loss of head from A to 1 is 3 times the velocity head in the 150mm pipe and the loss of head from 2 to B is 20 times the velocity head in the 100mm pipe. Compute the horsepower output of the pump and the pressure heads at 1 and 2 when the discharge is 200gpm.arrow_forwardWater at 22oC is pumped from the bottom of a large storage tank where the pressure is 290 kPa gage to a nozzle which is 14.17 m above the tank bottom and discharges to the atmosphere with a velocity in the nozzle of 20.1 m/s. The water flow rate is 50 kg/s. The efficiency of the pump is 77% and 9 kW are furnished to the pump shaft.a. Draw the diagram b. The friction loss in the pump. c. The friction loss in the rest of the process.(include principles used)arrow_forward
- C. A pump delivers 25 L/s of water with a head of 35 m and runs at a speed of 2950 rpm for 8 hours per day. The shaft power is 11.5 kW. The electric motor driving the pump has an efficiency of 84% and the cost of electricity is 15 cents per kWh. Evaluate the cost of electricity to run the pump in a day.arrow_forwardWater recirculates at a volume flow rate of 0.4524 ft3/min from the blade outlet to the impeller, and shaft sealing losses are negligible. A centrifugal pump has a hydraulic efficiency of 95% and a mechanical efficiency of 93%, respectively. Calculate the pump efficiency in percent if the pump delivers water at a flow rate of 12 ft3/min.arrow_forward4. The discharge pipe of a pump is 400 mm in diameter delivers 0.5 m3/sec of water to a building which maintains a pressure of 100 Kpa at a height of 30 m, what power must be furnished by the pump?arrow_forward
- 1. A hydroelectric plant has 20 MW generator with an efficiency of 96 %. The generatoris directly coupled to a vertical Francis type hydraulic turbine having an efficiency of 80%.The total gross head on the turbine is 150 m while the loss of head due to friction is 4 %of the gross head, the runaway is not to exceed 750 rpm. Determine the flow of waterthrough the turbine in m3/s. Complete Solution/s (i.e. transformations, equivalent formula, etc).arrow_forwardA horizontal 150 mm diameter pipe gradually reduces its section to 50 mm diameter, subsequently enlarging into 150 mm section. The pressure in the 150-mm pipe at a point just before entering the reducing section is 140 kPa and in the 50 mm section at the end of the reducer, the pressure is 70 kPa. If 600 mm of head is lost between the points where the pressures are known, compute the rate of flow of water through the pipe.arrow_forwardA pump at an elevation of 300m is pumping 0.05 m³/s of water through 2.4 km of 150-mm pipe to a reservoir whose level is at an elevation of 380m. What pressure will be found in the pipe at a point where the elevation is 335m above the datum and the distance (measured along the pipe) from the pipe is 970m? Compute the capacity of the pump. Use E/D= 1.5384x10-³arrow_forward
- A small centrifugal pump is used to deliver 0.005 m3/s of water to level 2 as shown in Fig. 2. Neglecting the losses, determine the required power input to the pump if its efficiency is equal to 70%.arrow_forwardA Pelton wheel has a mean bucket speed of 10 meters per second with a jet of water flowing at a rate of 700 liters/s under a head of 30 meters. The buckets deflect the jet through an angle of 160°. Calculate the power given by water to the runner and the hydraulic efficiency of the turbine. Assume co-efficient of velocity as 0.98.arrow_forward3. The pump is delivering hydraulic oil with a specific gravity of 0.85 at a rate of 75 L/min to a tank 3.5m above the pump. The pressure at A is -20 kPa and the pressure at B is 275 kPa. The head loss in the system is 2.5 times the velocity head in the discharge pipe. Calculate the power (kW) delivered by the pump for pipe diameter at suction in 52.54mm and discharge pipe diameter is 26.64mm.arrow_forward
- Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY