4. A special oil is to be used in an absorption tower. The preliminary design of the unit requires the oil to be pumped from an open tank with a 10 ft liquid level above the floor and forced through 150 ft of 3 inches schedule 40 pipe with a ball check valve and 5 elbows into the top of a tower 30 ft above the floor. The operating pressure in the tower is to be 52 psig and the oil requirement is estimated at 50 gpm. The viscosity of the oil 15 cP and its density is 53.5 lbm/ft. Assuming the pumping outfit operates with an overall efficiency of 60%, what horsepower input will be required for the pump motor?

4. A special oil is to be used in an absorption tower. The preliminary design of the unit requires the oil to be pumped from an open tank with a 10 ft liquid level above the floor and forced through 150 ft of 3 inches schedule 40 pipe with a ball check valve and 5 elbows into the top of a tower 30 ft above the floor. The operating pressure in the tower is to be 52 psig and the oil requirement is estimated at 50 gpm. The viscosity of the oil 15 cP and its density is 53.5 lbm/ft. Assuming the pumping outfit operates with an overall efficiency of 60%, what horsepower input will be required for the pump motor?

Name: 4. A special oil is to be used in an absorption tower. The preliminar
Uploaded: 2024-03-20T06:56:55.000Z
Channel: Bartleby
Description: 4. A special oil is to be used in an absorption tower. The preliminary design of the unitrequires the oil to be pumped from an open tank with a 10 ft liquid level above the floor andforced through 150 ft of 3 inches schedule 40 pipe with a ball chec

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

See similar textbooks

Similar questions

5. Oil of specific gravity 0.750 is pumped from a tank over a hill through a 24′′ pipe with the pressure at the top of the hill maintained at 25.5 psi. The summit is 250 ft above the surface of the oil in the tank, and oil is pumped at the rate of 22.0 cfs. If the lost head from tank to summit is 15.7 ft, what horsepower must the pump supply to the liquid? indicate free body diagram
A header with 170 psia saturated steam is feeding a pulp stock digester through 10.8 feet of 3-inch Schedule 40 pipe which includes three standard 90 degree elbows and a fully-open standard globe valve. The initial pressure in the digester is 20 psia. a) Determine the initial flow rate in pounds per second. The specific volume of saturated steam at 170 psia is 2.674 ft3/lbm. b) At what digester pressure would the flow transition from sonic to subsonic?
Gasoline at 38°C is being drawn from a closed tank having a pressure of 70kPag. The level of gasoline in the tank is 2.5m above the pump centerline. The suction line friction loss is 0.6m. The vapor pressure of the gasoline is 48kPa absolute and its specific gravity is 0.72. Determine the NPSH available.
A pump takes in oil at a temperature of 400oF from a closed tank in which the pressure is 85 psig. The specific gravity of oil 0.78 and its vapor pressure is 100 psia. The loss in the suction pipe is 2ft and the pump is located 12 ft below the oil level in a plant at sea level. Will there be cavitation in the pump? If so, how can this be corrected?
In oasis Water Company to purify the water, it is flowing through a reducer in a horizontal pipe where the diameter is reduced from 35 cm to 25 cm. The pressure in the 35 cm pipe just upstream of the reducer is 3 150 kPa. The fluid has a vapor pressure of 50 kPa and a specific weight of 5 kN/m . Neglecting frictional effects, calculate flow rate of water through this pipe in lit/s. Draw diagram neatly.
What is the Reynolds # of the flow.? Water @ 15C is transported from a large open tank to the bottom of another open tank above. The surfaces of the two tanks are kept at 160ft apart vertically. The pipes used have an ID of 3.5 inches, and a total length of the pipe used is 150ft. In the system, there are two fully open gate valves, 6 90° elbows, and 2 standard tees. The pump used has a mechanical efficiency of 60%, and the volumetric flow rate of water is at 35 (ft^3)/s. Assume frictional losses frm sudden contraction and expansion are negligible.
Water is to be pumped (whose characteristics below) from one large open tank into an apparatus working under a pressure of 2 atm. The pipe diameter is 0.15 m and the pipe length is 61 m. There are minor losses at the entrance, exit and throughout the pipe. The friction factor will be taken as 0.02. JEfficiency of the pump =0.7 Calculate: The flow-rate and shaft-power needed when the pump is operated at 1000 rev/min. The flow rate and the power when the speed of the pump increased by 10%. c) The flow rate and the power when two pump operate at parallel.
A large container filled with water and uncovered for use in fighting fires in an ethylene production plant. Water from this tank is pumped into the nozzle when needed use. This fire suppression system is designed to be able to transmit 1890 L/min of water at a pressure of 15 bar (relative pressure). If we ignore the difference in height between the water level in the tank and pump, there is no change in diameter of pipe and nozzle, pump efficiency is 70%. Ask how much work (hp) is required to the pump to achieve the desired pressure and flow would like?
Water at 15°C is transported from a large open tank to the bottom of another open tank above. The surfaces of the two tanks are kept at 160 ft apart vertically. The pipes used have an ID of 3.5 inches, and a total length of the pipe used is 150 ft. In the system, there are two fully open gate valves, 6 90° elbows, and 2 standard tees. The pump used has a mechanical efficiency of 60%, and the volumetric flow rate of water is at 35 (ft^3)/s. Frictional losses due to sudden contraction and expansion are negligible. Determine the Reynolds number of the flow
5. 10 lt / s of water is requested to be transported from A depot to city B. The water level of the A depot is 50 m and the B point is 30 m. The length of the EU pipe in the project has been calculated as 1000m and taken as f = 0.02. The pipe diameter has been chosen as φ90 mm. Since the minimum operating pressure (pressure head) required at point B is 20m, can water be delivered to point B with this system? (Velocity height is negligible)
A system pumps water from a lower reservoir to a higher reservoir. The pipe diameter is 0.245 m and the pipe lengths are L1= 5 m, L2= 3 m, L3= 3 m, and L4= 0.3 m. The impeller of the centrifugal pump has a diameter of 0.5 m and operates at 900 rpm. The uniform blade height is 56 mm. The water enters the pump parallel to the pump shaft with a flow rate of 0.19 m3/s. Take viscosity as 0.00112 N s/m2. What would be the shaft power required to turn the impeller if the exit blade angle is 50 degrees. Work to 4 significant digits. Enter all values using base units or their combinations, i.e. m, m/s, Pa, N. Do not use multiples as e.g. mm, kPa. You can use values with exponents, such as 0.12e3.
Q.4) Differentiate between major and minor losses in pipes.