Consider a pump with a 6.5-inch impeller as shown below. The pump pumps 100 gpm of water against ...
4.45 A two-tank pump/pipe system has a head requirement of 23.4 ft at a flow rate of 100 gpm. The elevation difference between the fluid surfaces in the tanks is 10 ft. The pump is a Bell & Gossett Series e-80 Model 2.5x2.5x9C operating at 1170 rpm with a 7.5-inch impeller. a. Develop an cquation for the system curve. b. Use a computer program to develop an equation for the 7.5-inch impeller using data read from the pump performance curve...
The diagram on the next slide shows a fluid power system for a hydraulic press The following is known: The volume flow rate is 35 gpm. The hydraulic fluid has a specific gravity of 0.87 and v-4.30x104 ft/s. The power input to the pump is 20 hp. The pump efficiency is 80 percent. The filter has a resistance coefficient K-1.85 based on the velocity head in the suction line. All piping is 2-in schedule 40 steel. The total length of...
Turpentine is stored in a 25-ft-diameter tank. Inside the storage tank, the turpentine depth is 18 ft. A piping system containing a pump is to move the turpentine to a holding tank having a very large diameter. The turpentine depth in the holding tank is constant at6 ft. The pipeline contains a basket strainer three elbows, and a ball valve. At the exit, the end of the pipeline is submerged 5 ft below the free surface of the turpentine. For...
Hydraulic Press 11.0ft Flow 10.0 ft 2.0ft 6 3.0 ft Filter Pump Flow The diagram on the next slide shows a fluid power system for a hydraulic press The following is known: The volume flow rate is 35 gpm. The hydraulic fluid has a specific gravity of 0.87 The power input to the pump is 20 hp. The pump efficiency is 80 percent. The filter has a resistance coefficient K-1.85 based on the velocity head in the suction line All...
02. centrifugal pump draws benzene at 25°C (sp. weight of benzene 8.59 kN/m) om a tank whose level is 2.6 m below the pump inlet. The atmospheric pressure (abs). The head loss in the suction piping due to friction and minor osses is 0.8 N.m /N. The vapor pressure of benzene is 13.3 kPa (abs). Determine he available net positive suction head (NPSH) and tell f it is acceptable or not. (10 points) Discharge ine Flew 2.6 m What is...
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5 Hydraulic Press ●4 11.0 ft Flow 10.0 ft 2.0 ft 1 6 3.0 ft Filter Pump Flow The diagram on the next slide shows a fluid power system for a hydraulic press. The following is known: The volume flow rate is 35 gpm. The hydraulic fluid has a specific gravity of 0.87 and v-4.30X10+ ft'/s. The power input to the pump is 20 hp. . The pump efficiency is 80 percent. The filter has a resistance coefficient K-1.85...
An engineer has designed a system in which a positive-displacement pump is used to pump water from an atmosphere tank into a pressurized tank operating at 150 psig. A control valve is installed between the pump discharge and the pressurized tank. With the pump running at a constant speed and stroke length, 350 gpm of water is pumped when the control valve is wide open and the pump discharge pressure is 200 psig. (a) If the control valve is pinched...
A fire pumper pumps 150 gpm of water from a fire hydrant through 250 feet of 2.5" c=120 fire hose. 50 feet of the hose are on the suction side of the pump with the remaining 200 feet are on the discharge side. The hydrant and the pump are at the same elevation and the pressure in the hydrant is 20 psi. The velocity head in the source main is negligible. The discharge is through a 1.5 inch nozzle at...
A centrifugal pump is used to pump water at 77ºF from a reservoir whose surface is 20 ft above the centerline of the pump inlet. The Pipe System consists of 67.5 ft of PVC pipe with a 1.2 in ID and negligible average internal roughness height. The length of the pipe from the bottom of the lower tank to the pump inlet is 12 ft. There are several minor losses in the pipe: an acute edge entry (KL = 0.5),...
A pump that is 80% efficient pumps water from the lower tank to the upper tank at a flow rate of 0.01 m/s through 70 meters of 10-cm diameter pipe. In this system there are two regular, screwed 90 degree elbows and a fully open screwed angle valve. Assume the reservoir exits and entrances are sharp. The friction factor,f, of the pipe is 0.02. What horsepower pump is needed to achieve this flow rate? Use: Pwater = 998 kg/m2; Mwater...