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

Condenser capacitor electricity , Condenser ( Capacitor ) : A capacitor i...

Condenser ( Capacitor ) : A capacitor is used to store the electrical energy. The maximum value of stored energy depends on its capacity. It helps to achieve required high voltag

Scrapper -tool and equipment , Scrapper: Scrappers are used to scrap gaske...

Scrapper: Scrappers are used to scrap gasket or other such materials from flat or irregular surface. Scrappers of several sizes are shown in Figure. Figure : Scrapper

Calculate force transmitted by the man on the floor of lift, Calculate forc...

Calculate force transmitted by the man on the floor of lift: A vertical lift having total mass 500Kg acquires an upward velocity of 2m/sec over a distance of 3m of motion w

Battery components , Cell Connectors A cell connector connects the ne...

Cell Connectors A cell connector connects the nearby cell with two terminals of opposite polarity (sign). Post strap connect the plates to the terminal. Electrolyte

Determine the shear force and bending moment equation, Determine the Shear ...

Determine the Shear Force and Bending Moment Equation The 13-ft long beam ABCDE is simply supported with concentrated loads of 2000 lb at points A and D and a distributed

Metal cutting, what is tangential force in metal cutting

what is tangential force in metal cutting

Priority rules-conventional priority rules, Priority Rules A main conce...

Priority Rules A main concern rule is an algorithm that evaluates a priority number PN j for all operation j which enters the queue in front of a station (processing, cell, wo

Construction of lacashire boiler, Construction of Lacashire boiler: C...

Construction of Lacashire boiler: CONSTRUCTION : Consists of boiler shell which contains water and steam. Diameter can vary from 1.75 to 2.75 m and length can be 7.25 - 9 m

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