4 replies to this topic

[PENGG]

I have several querries w.r.t. NPSH Available.
1. For NPSH Available calculation should we consider velocity head in suction line?
2. If yes, when to consider and Why to consider velocity head? What it means?
3. We calculate NPAH A by taking service fluid properties (Vapour pressure, Density, Viscosity etc.) While vendor give us NPSH Required value obtained for test fluid i.e. water. Doesnt it inconsistant ?

[breizh]

Hi ,
you need to find textbook to support your queries (too many questions ) .

This site will help you :

http://centrifugal-p...rg/sitemap.html

Breizh

[breizh]

Pengg

additional information and good tutorial .

Hope this helps you

Breizh

[PENGG]

Thanks. Mr Breizh.

[sheiko]

PENGG,
1/ and 2/ Learn the definition of NPSHA to clear your doubts
3/ NPSH is independant on liquid density

Edited by sheiko, 04 January 2013 - 03:18 PM.