A centrifugal pump delivers 900 of sea water (sp.gr.= 1.03) from a source where hr the water level varies 2 m from high to low tide level. The pump centerline is located 2.6 m above the surface of the water at high tide. The pump discharges into the atmospheric surface condenser, 3 m above the pump centerline. Loss of head due to friction in the suction pipe is 0.8 m and that in the discharge side is 3 m. Pump is directly coupled to a 1750 rpm, 460 volts, 3 phase, 60 Hz. Calculate: a) total dynamic head b) pump theoretical power c) power to drive the pump if pump efficiency is 82%

A centrifugal pump delivers 900 of sea water (sp.gr.= 1.03) from a source where hr the water level varies 2 m from high to low tide level. The pump centerline is located 2.6 m above the surface of the water at high tide. The pump discharges into the atmospheric surface condenser, 3 m above the pump centerline. Loss of head due to friction in the suction pipe is 0.8 m and that in the discharge side is 3 m. Pump is directly coupled to a 1750 rpm, 460 volts, 3 phase, 60 Hz. Calculate: a) total dynamic head b) pump theoretical power c) power to drive the pump if pump efficiency is 82%

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Q: Consider a 1,5m wide rectangular channel carries a discharge Q(m3/s). It is further observed from…

Q: The Reynolds number for a flow in a channel is 9209. What type of flow is it Laminar .a O Turbulent…

A: Given, Reynolds number Re = 9209 The correct option is (b),

Q: 2. Oil is pumped from reservoir A to B by a 15 hp pump having an efficiency of 75%. The pressure of…

Q: Assume that water vaporizes at an absolute pressure of 1.5 m, barometric pressure head is 9.5 m,…

A: To Determine:Safe height of the runner above the tail water level

Q: 2. A centrifugal pump shall be used as the firepump on a ship. It shall deliver a head of 120 m…

A: step 1-

Q: A centrifugal pump lifts water against of 0.08 m, major losses in the suction side h,, = EN m and in…

A: Solution: Given Data: Static head,∆z=24 m=26 md=0.08 mLosshsuction=240.3=2.594…

Q: The water is flowing with a velocity of 1.5 m/s in a pipe of length 2500 m and diameter 500 mm. A…

A: given- velocity V=1.5 m/sLength of pipe L=2500 mdiameter d=500 mmtime of closure t=25 s

Q: 6. Seawater (sg = 1.03) enters a heat exchanger through a reducing bend connecting a 4-inch copper…

A: Calculate the force required to hold the bend in equilibrium.

Q: What is the critical depth in a rectangular channel with 2.3 m width and 0.91 m2/s discharge per…

A: What is the critical depth in a rectangular channel and calculate minimum specific energy?

Q: For constant density flow through this round nozzle, V₁ = 1.7 m/s and V₂ = 20 m/s. The ratio of…

Q: The water is passed through a steel pipe with a diameter of 23 cm (rough height 0.046 mm) out of the…

A: Given, D = 23 cm or 0.23 m L = 200 m

Q: h=8-06 m/s The Velocity in the outlet pipe from this reservoir is 9 m/s and h = m/s. Because of the…

Q: An 8 hp pump is installed near the reservoir container of oil having a s.g. Of 0.82. The rate of…

Q: Find the discharge Q of oil from the setup

A: solution: we know that, p1γ + V122g + z1 = p3γ + V322g + z3 + HL 0 + 0 + 5.00 = 0+ V322 x 9.81 +0 +…

Q: Oil with sp. gr. of 0.88 is being pumped from a lower reservoir to an elevated tank. The pump in the…

A: since lower reservoir is at lower elevation therefore to discharge oil into reservoir 2 we need to…

Q: Problem 3: The pressures at the inlet and exit of a water turbine are 300 and 90kPa, respectively.…

Q: Water flows steadily from polnt 1, where the dlameter is 1 ft., to point 2, where the diameter is 2…

Q: Find the value of pressure at dpeth of 12.5 m from free surface of water Tale density of water 10…

A: To Determine Value of pressure, P Correction in question Value of Density given in question is the…

Q: An open tank contains 5.70 m of water covered with 2.80 m of kerosene (y = 8.0 kN/m³). Find the…

A: Height of water in tank (h1) = 5.70 m Height of Kerosene in tank (h2) = 2.80 m Specific weight of…

Q: A closed vessel 5m high contains 2.9m of oil (SG=0.762). A 90mm diameter orifice is situated 0.3m…

Q: DAM 30 FT FLOW T = 20 FT SAND IMPERVIOUS ROCK B = 240 FT The total length of the dam shown is 800…

Q: The loss of energy head in a hydraulic jump formed in a rectangular channel is (4.25 m). Froude…

A: Given Energy loss 4.25 mFraudes number before jump 7.5Rectangular channelTo find out Discharge per…

Q: A 0.1m-Φ x 0.094m solid cylinder weighs 4 Newton. It is submerged in a liquid (SG = 0.8328) which is…

Q: A liquid of specifi gravity 1.75 flows in a 6cm horizontal pipe. The total energy at a certain point…

Q: A rectangular channel (n=0.011) 18 m wide to carry water at a flow rate of 35 m³/s. The slipe of the…

A: Given data in question Constant value Width Discharge Slope To find out Critical depth Specific…

Q: Home Work P.3.1 Two pipes A andB carrying water are connected by a connecting tube as shown in…

A: The figure is as shown

Q: Open Channels Water flows in a rectangular open channel at a depth of 0.75 m and a velocity of 3.2…

A: above given data d1 = .75m aand V1 =3.2 m/s

Q: 1 Μ Figure 2 2 ↓ Δε

Q: A centrifugal pump delivers 900 m3/hr of sea water of sp.gr.= 1.03 from a source wherethe water…

A: Given:Specific gravity of sea water=1.03Discharge=900 m3hrQ=9003600=0.25 m3s

Q: Compute the capillary rise in mm of pure water at 10 Celsius expected in an 0.8 mm diameter tube.

Q: Upper reservoir elevation = 100m Lower reservoir elevation = 50m %3D The penstock pipe in between…

Concept explainers

Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?

Question

m3
A centrifugal pump delivers 900
of sea water (sp.gr.= 1.03) from a source where
hr
the water level varies 2 m from high to low tide level. The pump centerline is located
2.6 m above the surface of the water at high tide. The pump discharges into the
atmospheric surface condenser, 3 m above the pump centerline. Loss of head due to
friction in the suction pipe is 0.8 m and that in the discharge side is 3 m. Pump is directly
coupled to a 1750 rpm, 460 volts, 3 phase, 60 Hz. Calculate:
a) total dynamic head
b) pump theoretical power
c) power to drive the pump if pump efficiency is 82%

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Step 3

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 3 steps

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, civil-engineering and related others by exploring similar questions and additional content below.

Similar questions

Q(1): A horizontal rectangular stilling basin is used at the outlet of a spillway to dissipate energy. The spillway discharges 13m'/s and has a uniform width of 12m. At the point where the water enters the basin, the velocity is 10m/s, compute: • The sequent depth of the hydraulic jump, The length of the stilling basin, • The energy loss in the jump, • The efficiency of the jump (the ratio of specific energy after to the specific energy before the hydraulic jump, • If the thickness of the basin is 0.75m, and the sieve analysis for the site soil indicate the d50 is 0.05mm, are the requirements of scour design satisfied or not?
A Francis turbine has been manufactured to develop 15000 horse power at the head of 81 m and speed 375 r.p.m. The mean atmospheric pressure at the site is 1.03 kgf/cm² and vapour pressure 0.03 kgf/cm². Calculate the maximum permissible height of the runner above the tail water level to ensure cavitation free operation. The critical cavitation factor for Francis turbine is given by %c = 317 x 108 x N² where N is the specific speed of the turbine in M.K.S. units.
Given: Discharge thru the siphon = 280 lit/sec Siphon diam = 200mm b = 2m Elev. at C = 20m Req'd: a) elev. at A b) pressure at B in kPa mm Ø siphon A C Reservoir C
A pump draws water from a large open sump through a short length of the suction pipe. The water is delivered through a 21.1 m length of 9 cm diameter pipe and via a submerged exit into an open tank. A control valve is installed in the delivery pipe, for which f = 0.0085. Dissipation other than friction and the loss at the valve may be ignored. The bottom of the tank is 10 m above the free surface of the water in the sump. What power will be required in kW if the water will be delivered to 1.5m above the pump?
A tank contains ail sp. gr. 0.80, gasoline sp. gr. 0.90 and seawater sp. gr. 1.03. If the depths of the liquids are 0.5 m, 0.8 m and 1 m for oil, gasoline and seawater respectively. Find the pressure at a depth of 1.2 m. a. 28.124 Kpa b. 21.092 Kpa c. 16.04 Kpa d. 10.104 Kpa The answer for this is letter D which is 10.104 Kpa however I dont know the exact solution.
The allowable Net Positive Sustion Head (NPSH) for a pump provided by the manufacturer for a flow of 0.05 m³/s is 3.3 m. The temperature of water is 30° C (vapour pressure head absolute = 0.44 m), atmosphere pressure is 100 kPa absolute and the head loss from the reservoir to pump is 0.3 N-m/N. Find the maximum height of the pump above the sustion reservoir.
Water is being pumped at a steady rate of 500 gpm from a 12in diameter well. Thewell draws water from an unconfined aquifer. The height of water in the aquifer in the equilibrium statebefore pumping is 100ft, and the drawdown at the well at steady state pumping is 40ft. The hydraulicconductivity of the aquifer determined from a pump test is 0.02ft/min. Determine the radius of influence.
SHOW SOlution Ans. F= 733.16kN 1.844m from the bottom of the tank parallel to the gate
.Calculate the stability of the intake box structure for water treatment plant with dimensions (5m long, 5m wide, 10m height). The flooded chamber is inside the box structure along the perimeter of dimensions (4m long, 4m wide, and 10m height ).
Determine the kinetic energy correction coefficient for the compound channel shown in Figure 2.1 below. Im V,=0.5m/s V,=0.3m/s 20m 22m 3m Figure 2.1 4m V,=1.5m/s
The commercial steel tube is then 100 m long and0.4 m in diameter. Calculate the height of the tower h, if the flow speed for7.95 m / s. Consider that losses are negligible and that losseswater temperature is 4 ° C