The following exercises have been designed to engage you with the material presented in thismodule. They will further develop your understanding of key concepts, and completing themis a vital part of the learning process.1. A centrifugal pump has the following characteristics:Q (m’h)23466992115h (m)171613.5 10.56.62n (%)49.5 6163.55310The pump is used to pump water from a low reservoir to a high reservoir through a totallength of 800 m of pipe 15 cm diameter. The difference between the water levels in thereservoirs is 8 m. Neglecting all losses except friction and assuming f= 0.004, find the rate offlow between the reservoirs. Also determine the power input to the pump.

Given: Total length of pipe, L = 800 m Diameter of pipe, D = 15 cm = 0.15 m Difference in level…

Answered: 46 69 13.5 10.5 5 61 63.5

Engineering

Mechanical Engineering

46 69 13.5 10.5 5 61 63.5

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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Numerical Calculations

In the mid-20th century, the availability and the growth in power of digital computers led to the increase in the mathematical model in the field of engineering and science. The analysis of these detailed models needs to be increased.

Question

The following exercises have been designed to engage you with the material presented in this
module. They will further develop your understanding of key concepts, and completing them
is a vital part of the learning process.
1. A centrifugal pump has the following characteristics:
Q (m’h)
23
46
69
92
115
h (m)
17
16
13.5 10.5
6.6
2
n (%)
49.5 61
63.5
53
10
The pump is used to pump water from a low reservoir to a high reservoir through a total
length of 800 m of pipe 15 cm diameter. The difference between the water levels in the
reservoirs is 8 m. Neglecting all losses except friction and assuming f= 0.004, find the rate of
flow between the reservoirs. Also determine the power input to the pump.

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Q-) When a centrifugal pump tried at a constant rotation speed of n = 1470 rpm, the following values were found: Q: dm3/s 0 10 20 30 40 50 55 60 70 H: m 460 495 507 500 490 460 449 430 390 Hy= 120 + 0.136Q2(Q→dm3s⁄;H→m) A-) Indicate the operating point of the pump. B-)What would be the operating point if two of this pump are connected in parallel to the same discharge pipe?
A manufacturer of small water pumps lists the performance data for a family of its pumps as a parabolic curve fit, Havailable = H0 − aV.2 , where H0 is the pump’s shutoff head and a is a coefficient. Both H0 and a are listed in a table for the pump family, along with the pump’s free delivery. The pump head is given in units of feet of water column, and capacity is given in units of gallons per minute. (a) What are the units of coefficient a? (b) Generate an expression for the pump’s ree delivery V.max in terms of H0 and a. (c) Suppose one of the manufacturer’s pumps is used to pump water from one large reservoir to another at a igher elevation. The free surfaces of both reservoirs are exposed to atmospheric pressure. The system curve simplifies to Hrequired = (z2 − z1) + bV.2 Calculate the operating point of the pump (V. operating and Hoperating) in terms of H0, a, b, and elevation difference z2 − z1.
1Two water pumps are arranged in series. The performance data for both pumps follow the parabolic curve fit Havailable =H0 =aV ^2. For pump 1, H0 =5.30 m and coefficient a =0.0438 m/Lpm^2; for pump 2, H0 =8.70 m and coefficient a =0.0347 m/Lpm^2. In either case, the units ofnet pump head H are m, and the units of capacity V are Lpm.Calculate the combined shutoff head. Complete Answer, thank you
( computational fluid dynamics question) Question: If the calculations lag behind the flow of fluid, what factor of the simulation gets affected? Circle Final answer or State it clearly
Hydrostatic pressure at any given depth of a liquid depends on the_____ of the container.a)Volumeb)ShapeC)Depthd)All of the above .As the temperature of oil increases, the viscosity of oil willa) increaseb) decreaseC)not change Which of the following units would NOT be used for volume flow rate?a) gal/minb) Ib/sc)m⅗d)ft^3/s 2.Dynamic viscosity is defined as,a) weight per unit volume of a fluidb) volume per unit weight of a fluidc) the velocity gradient divided by the shearing stress of a fluidd)the shearing stress divided by the velocity gradient of a fluid
Explain the basic working principles, main parameters, performance, efficiency, etc., of pumps in your words minimum 200 words, Result Analysis, Discussion & Conclusions From your results, describe the link between flow rate with efficiency, head and power. Discuss the point where the pump is most efficient? https://www.youtube.com/watch?v=Pj7qs2-dvVw
A2: FLUID FLOW, FLOW RATE & PRESSURE DROPProblem:3. Determine the volumetric flow rate, in L/s, for water flowing out of a faucet based on 6 L in 8 s.
The ratio of entry diameter with exit diameter is 0.4 in a control volume of pipe segment. What is the corresponding ratio of entry to exit velocity? Recall Q1=Q2 and v1A1=v2A2 Correct answer has a margin of 0.1 from exact answer.
Find the flow rate, net head, and efficiency of the pumps if they are operating separately. Show on the graph you have drawnas a representative how you have determined by using the graph. Using the graphs, show your selection and calculations onthe graph (you can draw the graphs on excel) ÖN=5