net positive suction head, Mechanical Engineering

Assignment Help:
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:- net positive suction head

Explain screw conveyor, Screw conveyor Screw conveyor during mixing an...

Screw conveyor Screw conveyor during mixing and flow directing paddles are selectively adjustable for use on a wide variety of materials having dissimilar flow characteristics

Constituents of seam welding, Constituents of seam welding The essentia...

Constituents of seam welding The essential elements of a seam welding machine are: Main frame containing welding transformer and tap switch. Welding head consisting o

Load, What is load? Sol. : A load can be defined as the combined eff...

What is load? Sol. : A load can be defined as the combined effect of external forces acting on the body. The load is applied on body whereas stress is induced in material of

Kinetics of Rectilinear motion, Advantages of work energy principle over D'...

Advantages of work energy principle over D''alambert''s principal.Explain in detail

Maintenance of bridges - culverts and shoulders, Maintenance of Bridges and...

Maintenance of Bridges and Culverts: Careful inspection of bridges and culverts at periodic intervals can detect cracks, foundation settlement, scour, malfunction of bearings

Sketch merchants force diagram, Merchants force diagram. State the assumpti...

Merchants force diagram. State the assumptions made in development of such diagram.

Thermal engineering, Air enters the compressor of an ideal air standard Bra...

Air enters the compressor of an ideal air standard Brayton cycle at 100kPa, 250C with a volumetric flow rate of 8m3/s and is compressed to 1000kPa. The temperature at the inlet to

Determine the origin of step, Determine the Origin of STEP Considerable...

Determine the Origin of STEP Considerable progress has been made in vector data exchange over the recent past. Initially, some CAD/CAM vendors offered direct translator softwar

Extrusion, Difference between hot extrusion and cold extrusion

Difference between hot extrusion and cold extrusion

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