19. The inlet line of a pump is 4-nominal schedule 40 PVC pipe that is 30 ft long andincludes one elbow and one well-rounded inlet. The pump conveys 0.5 ft/s ofwater at 60°F from a tank. The net positive suction head required by the pump is8 ft. Determine where the location of the water level in the tank should be withrespect to the pump impeller shaft to prevent cavitation.

Step 4: Total Head Losshf=hfriction+hminor=3.01+0.91=3.92ft Step 5: Solve for zSubstituting into the…

Answered: 19. The inlet line of a pump is…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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A pump operating at 1750 rpm delivering 500 gpm against a total head of 150 ft. Changes in the piping system have increased the total head to 360 ft. At what rpm should the pump be operated to achieve this new head at the same efficiency?
Determine the NPSH available for the system shown. The pump takes water at 30 ° C. The system is installed at sea level. The pump is at 2 m above the water level. The pipe measures 6 m and the diameter of 5 cm. The tubing has a sharp edge entry and the elbow is 90 ° threaded. The flow that the pump moves is 90 liters per minute. The material of the tubing is galvanized iron.
Water 2. In this system, d = 6 in., D = 6 ft, and =z2 = 12 ft. The water in the system is 13 cfs. machine a pump or a turbine? pressures at points A and B? losses. Pump 1. The discharge in the siphon is 2.80 cfs, D = 10 in., L1 = 3 ft, and L2 = 3 ft. Determine the head loss between the reservoir surface and point C. Determine the pressure at point B if three-quarters of the head loss (as found above) occurs between the reservoir surface and point B. 1 m REVIEW Home Work (1) Energy Equation Water T = 10ºC REPPER Water Same elevation Machine Elevation = 40 m -Elevation = 20 m Elevation 10 m 300 m + -300 m- 4. Assume that the head loss in the pipe is given by hL = 0.014(L/D)(V2/2g), where L is the length of pipe and AZ₂ AFL B Elevation 100 m L = 100 m D = 60 cm Water T= 10°C 3. A water discharge of 10 m3/s is to flow through this horizontal pipe, which is 1 m in diameter. If the head loss is given as 7V2/2g (V is velocity in the pipe), how much power will have to be supplied to the flow…
Show complete solution and formulas used. Show the schematic diagram too. Calculate the required pipe diameter to avoid cavitation, if the pump delivers Q = 30US gallon/min water from a closed tank, where the pressure (above the water level) is p = 40kPa. The equivalent length of the smoothened concrete pipe on the suction side is 12m while the suction flange of the pump is 8m below the water level. The vapour pressure at the given water temperature is 2.8kPa. The required net positive suction head is NPSHr = 3.2m.
What is the maximum height the higher reservoir can sit and be filled using a fixed-speed pump with 1-1/4 HP of input and a 57% efficiency rating at 30 GPM of flow? The suction line is 30ft of 1-1/4” schedule 40 steel pipe. The discharge line is 1” schedule 40 steel pipe and is horizontal for 10 ft.
If a pump requires a minimum of 2.75 m of NPSHA, how high can the centerline of the pump be located above the top of an open tank that supplies 27 C water to the pump? The barometer reads an average of 732 mmHg throughout the year. The tank is 1.82 m high. The pipe friction is 0.7 m and the velocity is 1.22 ?/? .
Problem 2: Control volume and Bernoulli Water drains from a tank through two r = 0.01 m diameter orifices: one located directly at the bottom of the tank, and the other at H/2. The tank has a diameter of R = 1m and the height of the water level is initially H = 1.5m. (1) Find the equations relating h and t for t t*. (2) Find the time, t*, it takes for the water level to drain to h(t*) = H/2. (3) Plot the relationship between the non-dimensional values (r/R)2√2g/H t (on the x-axis) and (on the y-axis) for t t*. R VH/2 h(t) → | H Figure 2: Draining tank with two orifices.
HYDRAULICS
Determine the available suction head of the pump that is taking a gasoline at 204°C at a closed tank with a pressure 585 kPa gauge. the specific gravity of gasoline is 0.78 and it’s vapor pressure is 620 kPa absolute. the loss in suction pipe is 0.60 m and the pump center line is located 3.60 m above the gasoline level A. 8.66m B. 3.67m C. 7.66m D. 4.47m
A pump with an impeller diameter of 300 mm running at a speed of 2950 rev/min delivering 450 L/min of water at a head of 350 kPa is going to be replaced by a geometrically similar spare pump running at a speed of 1450 rev/min delivering the same flow rate and head. Determine the impeller size of the spare pump and the percentage increase (decrease) of power required for the spare pump. OL. 380.1 mm; a decrease of 61.33% OI., 380.1 mm; an increase of 38.77% I. 147.5 mm; an increase of 3.4% IV. 210.3 mm; a decrease of 83.1%
Can You Solve This.
What is the horsepower requirement for a water pump, if the required flow rate is 200 gpm and the required pressure increase assigned to the pump is 32 psi?

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