Problem 2. A pump-pipeline system delivers water between two reservoirs with the lowerand upper water surfaces at 45.5 m and 52.9 m, respectively. When a single pump is used,the flow rate is 0.595 m³/s with a pump head of 66.3 m.a. Determine the system head curve.b. What would be the flow rate if two identical pumps were used in series? Assume thesystem head curve not to change.Single pump characteristic curve:Q (m³/s)H (m)091.40.1589.80.3085.10.4577.20.6065.90.7552.60.9036.31.0515.7

Step 1:The available static head of the system= 52.9-45.5 available static head of the system = 7.4…

Answered: Problem 2. A pump-pipeline system…

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

Two centrifugal pumps, each capable of delivering a flow rate of 100 m³/h at ahead of 50 meters, are used in a water distribution system. If these pumps are operated inparallel, what is the expected combined performance of the system under idealconditions?A. A flow rate of 100 m³/h at a head of 100 meters.B. A flow rate of 200 m³/h at a head of 50 meters.C. A flow rate of 200 m³/h at a head of 100 meters.D. A flow rate of 100 m³/h at a head of 25 meters.
In a hydro-electric power plant, the difference in elevation between the surface of headwater and tail water surface is 182 m. When the flow is 2.25 m 3 /s, the friction loss in the penstock is 18 m and the head utilized by the turbine is 140 m. The mechanical friction in the turbine is 74.6 kW, and the leakage loss is 0.085 m 3 /s. Calculate: A. Brake powerB. Mechanical efficiencyC. Overall turbine efficiency
Problem 2 A pump is needed in a water supply system. The water is being pumped out of a ground-level storage reservoir with water surface elevation of 149.27 ft and needs to pass over a hill 2 miles away, where the pipe centerline is at elevation 200.00 ft. The flowrate is 22 mgd, pipe diameter is 24 inches, Hazen-Williams friction factor is 110, and pressure at the crest of the hill must be at least 20 psi. (a) What head must the pump provide? (b) How much power will be added to the water? (c) What size motor should be purchased if the pump/motor combination has an efficiency of 80 percent?
A centrifugal pump, driven by a DC motor, running at 100 rpm delivers 500 gpm of water against a total pumping head of 75 feet with a pump efficiency of 68%. a. Specify the motor hp required. b. Determine the resulting pump speed and capacity if the pump rpm is increased to product a pumping head of 110 ft assuming the efficiency remains the same. c. Can a 15 hp motor be used under the conditions indicated in item b?
1. Water from a reservoir passes over a dam through a turbine and discharges from a 60-cm ID pipe at a point 40 m below the reservoir surface. The turbine delivers 1 MW. a. Draw the system and write the relevant form of the mechanical energy balance. b. Calculate the required flow rate of water in m3/min if friction is neglected. (Note: The equation you will solve in this problem has multiple roots. Find a solution that is physically relevant.) c. If friction were included, would a higher or lower flow rate be required?
Correct this problem with step-bystep please: A pump moves water horizontally at a rate of 0.02 m^3 /s. Upstream of the pump, where the pipe diameter is 90 mm, the pressure is 120 kPa. Downstream of the pump, where the pipe diameter is 30 mm, the pressure is 400 kPa. If the loss in energy across the pump due to fluid friction effects is 170 N.m/kg. Determine the hydraulic efficiency of the pump.
For the single pump-pipe system below, what will be the changes for the operating point if we increase the pipe size but decrease the shaft speed of the pump? EB H₂ O The operating point will remain the same. O The operating point will occur either at a higher discharge or at a lower discharge, depending on the specific influence of each change. O The operating point will occur at a higher discharge. O The operating point will occur at a lower discharge.
5. A duct of 0.45 m diameter and 90 m long leads from a fan discharge chamber where the pressure is 15 mm of water to a plenum chamber where the pressure is 10 mm of water. In order to increase the flow, two alternatives are considered. One is to lay a duct of 0.3 m diameter and 90 m long in parallel with the duct of 0.45 m diameter. The other is to increase the diameter of 0.45 m diameter duct for the last 60 m length. Calculate the increased diameter so that this method gives the same flow as the 0.45 m and 0.3 m ducts in parallel. Assume that the pressures in the fan chamber and plenum chamber are unaffected by changes in the flow and consider duct friction losses only. The friction factor may be taken as 0.0o55. 6. A 0.3 m diameter circular duct carries standard air at a velocity of 360 m/min. It is replaced by a rectangular duct having the same pressure loss per unit length due to friction. Determine the dimensions of the rectangular duct if the aspect ratio is to be 1.5 for (a)…
Please solve question four
Complete the following tasks: QUESTION 1: A centrifugal pump consists out of an impeller, diffuser and casing and is powered by 300 kW (shaft power) and rotates at 96.3 rad/s. The flow rate generated by the machine is 54.7 Kilo-litres/min. The impeller blade inlet angle and width is 23° and 180 mm respectively. The blades occupy 12% of the impeller area and the water is assumed to enter the impeller radially. Suction and delivery pipes are equal in size. Determine: 1.1. The impeller inlet (i) diameter and inlet blade velocity. (Hint - Substitution: Vn in terms of Di and U, in terms of D; both sub into Tan of Blade inlet angle, only unknown is then solving for D?) ANS: 300 mm; 14.42 m/s If the pump has a mechanical efficiency of 80%, calculate the blade velocity at outlet (Uo) and outlet whirl velocity Vwo. Assume the blade exit angle equal to the guide vane angle. (Hint - Substitution: Write Vwo in terms of U. sub in Euler equation only unknown then is solve for Vwo) ANS: Vwo = 11.54…
Figure Q2 is a schematic of pump connected to the 80 mm diameter hose, if the average velocity of the water at the pump. C Neglect friction losses. is 8.50 m/s. Determine the required power output of the pump
A fully-filled open storage tower of height 32 m and diameter 3.0m supplies water to a house. A horizontal pipe at the base of the tower has a diameter of 2.54cm. To satisfy the needs of the home, the supply pipe must be able to deliver water at a rate of 0.67 gal/s. a. If water were flowing at the maximum rate, what would be the pressure in the horizontal pipe?b. A smaller pipe, of diameter 1.27 cm supplies the second floor of the house, a distance of 7.2 m above the ground level. What are the flow speed and water pressure in this pipe?

SEE MORE QUESTIONS

Recommended textbooks for you

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Elements Of Electromagnetics

Mechanical Engineering

ISBN:

9780190698614

Author:

Sadiku, Matthew N. O.

Publisher:

Oxford University Press

Mechanics of Materials (10th Edition)

Mechanical Engineering

ISBN:

9780134319650

Author:

Russell C. Hibbeler

Publisher:

PEARSON

Thermodynamics: An Engineering Approach

Mechanical Engineering

ISBN:

9781259822674

Author:

Yunus A. Cengel Dr., Michael A. Boles

Publisher:

McGraw-Hill Education

Control Systems Engineering

Mechanical Engineering

ISBN:

9781118170519

Author:

Norman S. Nise

Publisher:

WILEY

Mechanics of Materials (MindTap Course List)

Mechanical Engineering

ISBN:

9781337093347

Author:

Barry J. Goodno, James M. Gere

Publisher:

Cengage Learning

Engineering Mechanics: Statics

Mechanical Engineering

ISBN:

9781118807330

Author:

James L. Meriam, L. G. Kraige, J. N. Bolton

Publisher:

WILEY

SEE MORE TEXTBOOKS