Problem 2: Control volume and BernoulliWater drains from a tank through two r = 0.01 m diameter orifices: one located directly at thebottom of the tank, and the other at H/2. The tank has a diameter of R = 1m and the height ofthe 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* and t> t*.RVH/2h(t)→ |HFigure 2: Draining tank with two orifices.

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Answered: Problem 2: Control volume and Bernoulli…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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QUESTION 5 5.1 A pipe of diameter 300 mm and length 3 000 m is used for the transmission of power by water. The total head at the inlet of the pipe is 400 m. Find the maximum power available at the outlet of the pipe. Take f =0.005. 5.2 The head of water at the inlet of a pipe of length 1500 m and diameter 400 mm is 50 m. A nozzle of diameter 80 mm at the outlet, is fitted to the pipe. Find the velocity of water at the outlet of the nozzle if f = 0.01 for the pipe.
3. Water is pumped through three pipes in series. Compute the discharge if the power delivered to the pump is W₂ = 1920 kW and the pump efficiency is n = 82%. The pipe resistance coefficients are R₁ = 13.2 s²/m³, R₂ = 204.1 s²/m³, R₂ = 25.8 s²/m³, and the head difference between the downstream and upstream reservoirs is 50 m. Ans: Q = 0.792 m³/s
Q4: Answer A or B A-Ethyl alcohol flows in the pipe as shown in Figure below of specific weight 49 lb/ft3. What is the mass flow rate? If viscous effects are neglected. Take the specific weight for the mercury equal to 846 and for water equal to 62.4 at 68 0F.
In the pumping system shown below, determine the following. a. Head loss at suction in m b. Head loss at discharge in meters c. Total head losses in meters d. Total dynamic head developed by the pump in meters e. Water Power in KW f. Brake Power in KW g. Energy consumption for 15 hours operation in KW-hr h. Line current drawn by the 3-Phase motor drive in amperes i. Pumping cost in Pesos/Day if electricity costs P7.00/KW-hr Figure: Other Data Water Temperature: 20∘C Suction Line 5−20 m 1−90∘ Elbow 1− Check Valve (Fully Open) Pipe Material: Galvanized Iron ND=100 mm Discharge Line L=50 m 12−90∘ Elbow 1− Gate Valve (Fully Open) 1− Check Valve Pipe Material: Galvanized Iron ND =80 mm Pump Efficiency: 75% Motor Efficiency: 82% Volts: 220 V Power Factor: 92%
answer fast
Figure 5 shows a pump connected to a large tank of water. Water flows out of the tank through the pump into a galvanized iron pipe of diameter D = 80 mm at a length, L = 40 m. At the end of the pipe, water exits through a nozzle of diameter D2 = 50 mm. With the height of water h, the pump adds 30 kW of power to the water resulting in a volumetric flowrate of Q=0.05 m³/s. Ignore the length of the nozzle and assume that the velocities are uniform. By using the same height of water and pipe, explain and justify with your calculation, which parameter(s) will be affected if the pump is to be removed from the system. ♡ (1) D2 = 50 mm h (2) Ритp L= 40 m D= 80 mm Figure 5
Water flows inside a solid cylindrical pipe, which narrows as it goes up to a height h (see diagram below). The lower horizontal section has circular cross-sectional diameter d, whereas the upper horizontal section has diameter d/2. Let us denote A to be a point at the lower horizontal section and B to be a point at the upper horizontal section. The flow speed at A and B is uд and u, respectively. The pressure at A and B is PA and PB, respectively. РА UA Oom Ja d d/21 1 UB h (a) Assuming water to be incompressible, show that the flow speed at B is four times the flow speed at A. (b) Use Bernoulli's equation to find the drop in the water pressure from A to B. Express the result in terms of h, uд, the density of water p, and the acceleration of gravity g. (c) Above certain critical height h, vapour bubbles start to appear at the top horizontal section, which hinders water flow through the pipe. Explain why this happens.
Give detailed solution,Only Handwritten.
A pump at an elevation of 300m is pumping 0.05 m³/s of water through 2.4 km of 150-mm pipe to a reservoir whose level is at an elevation of 380m. What pressure will be found in the pipe at a point where the elevation is 335m above the datum and the distance (measured along the pipe) from the pipe is 970m? Compute the capacity of the pump. Use E/D= 1.5384x10-³
VII. Suppose water is leaking from a tank through a circular hole of area A, at it's bottom. When water leaks through a hole, friction and contraction of the stream near the hole reduce the volume of the water leaving the tank per second to cAp 2gh where c(0
Water at 20 Celcius degrees is pumped from a large reservoir through a pipe system which has a diameter of 79 mm and length of 13 m. The installation of pipe system is as shown in the figure below. Considering the mass flow of the water supplied to the pipe is 5,1 kg/s and the surface roughness of the pipe is equal to the 5 micron, please compute the total pressure loss of the system in Pascal.
(7) The mass flow rate from a converging-diverging nozzle (Ae= 0.02 m2, po= 200 kPa, To= 345 K, pb= 160 kPa), * 7.1 kgs-1 7.1x10-3 kgs-1 8.7 kgs-1 8.7x10-3 kgs-1

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