A circular tank of diameter 1.25 m contains water up to a height of Sm. An orifice of 50mm diameter is providedat its bottom. If Cd is 0.62, Solve for the height of water above the orifice after 1.25 minutes and 17 minutes. Y

The orifices is the small opening through which the fluid pass through. The orifice is majorly…

Answered: A circular tank of diameter 1.25 m…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A pump system is used to move water at a flow rate of 30 L/s from a lower to a higher reservoir in a city with an elevation of 1000 m above sea level. The system is shown schematically in the figure below, with ∆?=30 m. Both the suction and delivery pipes have a diameter of 150 mm and an absolute roughness of 0.3 mm. The lengths of the suction and delivery pipes are 6 and 500 m respectively. Ignore local losses and assume a temperature of 15 °C. a)Develop a mathematical expression for the system curve (i.e. the pumping head required as a function of the system flow rate) from basic principles. Name all mechanics principles implemented. b)Calculate the required pump working point. What is the flow regime of the pipe flow. c)What power does the pump add to the water in the system?
A rectangular tank 3 m x 4 m is 5 m high with 2 orifices placed at a vertical distances of 0.5 m and 1m from the bottom respectively. Both orifices are 100 mm diameter with C=0.607. Determine the: show complete solution a. How long will it take to lower the water at tank by 2 m in seconds?b. How long will it take for the water surface to be at the same level as the upper orifice in seconds?
4. A cylindrical tank is having a hemispherical base. The height of cylindrical portion is 5 m and diameter is 4 m. At the bottom of this tank an orifice of diameter 200 mm is fitted. Find the time (in minutes) required to completely emptying the tank. Take C=0.6 (20 pts) 5 m II 4.0 m 2.0 m ORIFICE
A piezometer and a Pitot tube are tapped into a 4-cm diameter horizontal water pipe, and the height of the water columns are measured to be 26 cm in the piezometer and 35 cm in the Pitot tube (both measured from the top surface of the pipe). Determine the velocity at the center of the pipe, in m/s.
Water flows into a conical vessel at a constant rate of Q cm³/s. The vessel has a height of 18 cm and a diameter of 10 cm at the top. When the water is 12 cm deep, the water level is rising at the rate of 0.115 cm/s. Find the value of Q.
The suction side of a pipe system is as shown in the figure. The pump discharges 495 gpm of water under a total head of 100 ft at 40°F. Atmospheric pressure = 32.7 ft of water. If the required NPSH is 9 ft, will there be a cavitation problem? Please note that 1 cfs equals 449 gpm. 12 ft 6 ft Diameter L = 300 ft Steel = 10 in 5
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A vertical cylindrical tank, 2 m diameter has, at the bottom, a 5 cm diameter, sharp-edged orifice, for which C_{d} = 0.6 Water enters the tank at a constant rate of 9 l/sec. At what depth above the orifice will the level in the tank become steady?
An orifice meter with a 5 cm diameter is used to measure the flow rate of liquid. Under a head of 4 m, the velocity of the liquid at vena contracta is 7.5 m/s. If the actual discharge through the pipe is 8 l/s, calculate the coefficients of velocity, discharge, and contraction. Answers should be : Cv= 0.85 Cd= 0.46 Cc= 0.54
A duct of diameter 0.8 m carries gas (p = 1.3 kg/m³). At one point, the duct diameter reduces to 0.74 m. Starting from Bernoulli's equation, estimate the velocity of flow in the reduced section, and the mass flow rate (=pQ) through the duct if the pressure difference between a point upstream of the reduction and another point at the reduction is equivalent to 30 mm of water.
The water flow rate in the pipe will be measured using the pitot tube system given in the figure. At point 1, the velocity is zero and represents the stationary point. Since there is mercury with a density of 13600 kg/m3 in the manometer and the height of the manometer is read 0.06, calculate the volumetric flow rate of the water flowing in the pipe with a diameter of 0.2 m. (ρwater = 1000 kg/m3)

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A circular tank of diameter 1.25 m contains water up to a height of Sm. An orifice of 50mm diameter is provided at its bottom. If Cd is 0.62, Solve for the height of water above the orifice after 1.25 minutes and 17 minutes. Y