Q3. A pipe line of diameter 0.75 m is 2 km long. To increase the discharge, another line of the same diameter is introduced in the second half of the main line in parallel. If minor losses are neglected, find the increase in discharge because of addition of another pipe, f = 0.04.The head loss at inlet = 0.40 m

Q3. A pipe line of diameter 0.75 m is 2 km long. To increase the discharge, another line of the same diameter is introduced in the second half of the main line in parallel. If minor losses are neglected, find the increase in discharge because of addition of another pipe, f = 0.04.The head loss at inlet = 0.40 m

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

The waterwheel in Fig. is being driven at 200 r/minby a 150-ft/s jet of water at 20 ° C. The jet diameter is 2.5 in.Assuming no losses, what is the horsepower developed bythe wheel? For what speed Ω r/min will the horsepowerdeveloped be a maximum? Assume that there are manybuckets on the waterwheel.
Water flows upward in a vertical 300-mm pipe at the rate of 0.222 m /s. At point A in the pipe, the pressure is 210 kPa. At B, 4.57 m above A, the diameter is 600 mm, and the lost head A to B equals 1.83 m. Determine the pressure at B.
The pump in Fig. draws gasoline at 20 ° C from areservoir. Pumps are in big trouble if the liquid vaporizes(cavitates) before it enters the pump. ( a ) Neglecting lossesand assuming a fl ow rate of 65 gal/min, fi nd the limitationson ( x , y , z ) for avoiding cavitation. ( b ) If pipe frictionlosses are included, what additional limitations might beimportant?
replyy At a point in a 15 cm diameter pipe, 2.5m above its discharge end, the pressure is 250 kPa, If the flow is 35 liters/second of oil (SG-0.762), find the head loss between the point and the discharge end
Q3: Find the diameter of a circular orifice to discharge (0.015m '/ sec) under a head of (2.4m). If the orifice is in a vertical plane and the jet falls (0.25m) in a horizontal distance of (1.3m) from the vena-contracta. Find the head loss through the orifice
Water at 20 ° C is pumped at 1500 gal/min from the lower tothe upper reservoir, as in Fig. P3.180. Pipe friction lossesare approximated by h f ≈27 V 2 /(2 g ), where V is the averagevelocity in the pipe. If the pump is 75 percent effi cient,what horsepower is needed to drive it?
The horizontal tube is 1 m long and 10 cm in diameter and is filled with a sample material. During a test, the upstream head h, falls from 200 to 180 cm in 4 hr, while h₂ is held constant at 15 cm. The diameter of vertical tube in which h, is measured is 40 cm. What is the indicated average hydraulic conductivity?
An 11.5-in-diameter centrifugal pump, running at1750 r/min, delivers 850 gal/min and a head of 105 ftat best efficiency (82 percent). (a) Can this pump operateefficiently when delivering water at 20°C through200 m of 10- cm-diameter smooth pipe? Neglect minorlosses. (b) If your answer to (a) is negative, can thespeed n be changed to operate efficiently? (c) If youranswer to (b) is also negative, can the impeller diameterbe changed to operate efficiently and still run at1750 rev/min?
A 50 mm diameter siphon discharges oil (SG=0.88) from a reservoir (elev. 20m) into open air (elev. 15m). The head loss from the reservoir (point 1) to the summit (point 2, elev. 22m) is 2.5 times the velocity head in the siphon and head loss from the summit to the discharge end is 4 times the velocity head in the siphon. What is the absolutepressure at the summit (point 2) assuming the atmospheric pressure to be 101.3 kPa? Do not write the unit. You will only input the numerical answer in the space provided. Unit of the Correct Answer: kPa (indicate the sign if negative) Decimal Places required in the final answer: 3
A fi reboat draws seawater (SG = 1.025) from a submergedpipe and discharges it through a nozzle, as in Fig. P3.176.The total head loss is 6.5 ft. If the pump efficiency is75 percent, what horsepower motor is required to drive it?
The pipe fl ow in Fig. is driven by pressurized air inthe tank. What gage pressure p1 is needed to provide a 208Cwater flow rate Q = 60 m3/h?
The 35°C water flow of the Figure below discharges to sea-level standard atmosphere. Neglecting losses, for what nozzle diameter D will cavitation begin to occur?