Calculate the net positive suction head, Mechanical Engineering

Assignment Help:

Calculate the Net Positive Suction Head

A pump station has been designed to lift water out of a 6 metre deep pit (vented to atmosphere) via a centrifugal pump mounted at ground level.

                Liquid conditions                          20°C

                Suction pipe work losses             2.0 metres

                NPSH safety factor                       5.0 kPa

                Vapor pressure @ 20°C               0.25 metres

Part (a)

Calculate the Net Positive Suction Head (NPSH) for the system ?

Part (b)

In summer the liquid temperature rises to 60°C, this changes the water vapor pressure to 2.05 metres. What is the revised NPSH for the higher water temperature

Part (c)

Pressure loss in the suction pipe work is directly proportional to water veloicty in the pipe work squared, which is inversely proportional to suction pipe work diameter squared.


Related Discussions:- Calculate the net positive suction head

Seam welding, Seam Welding Seam welding is different from spot welding ...

Seam Welding Seam welding is different from spot welding by the fact that roller type electrodes are used in the former case. The principle and process of welding are the same

Describe the basic procedure for design, (a) Describe the basic procedure f...

(a) Describe the basic procedure for mechanical engg. design. (b) What is the relationship between the functional requirement and appearance of product?

A damped single degree mass-spring system, the spring k2 is attached to a b...

the spring k2 is attached to a base that is moving vertically with displacement y=yo sin(wt).assume x>y.derive the equation of motion .find the natural frequency and derive the ste

MOS, limitations of euler''s theory

limitations of euler''s theory

Explain the height adjustment and extension of augers, Normal 0 ...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4

Airport pavement, Airport Pavement: Airport pavements can be: (a) ...

Airport Pavement: Airport pavements can be: (a)        Flexible, and (b)       Rigid (cement concrete). Since cement concrete pavements have transverse and longitudi

Som, a steel bar is 900 mm long

a steel bar is 900 mm long

Thermodyamics, work is path function not a state function

work is path function not a state function

Evaluate the reactions at hinge and roller support, Evaluate the reactions ...

Evaluate the reactions at hinge and roller support: Q: A Force P = 5000N is applied at centre C of beam AB of length 5m as shown in figure given below. Find the reactio

Circular orbits, The Circular Orbits The bounded motion of a particle i...

The Circular Orbits The bounded motion of a particle in a central force is in general an ellipse given by   where eccentricity e is related to semi-major and minor axes a

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd