what is npsh and how to calculate it for a centrifugal pump

Answer Posted / pradeepa

NPSH is net positive suction head of a pump. For
centrifugal pumps, it is calculated as follows:

NPSHa = Atm. pr. + static head - vapour pressure - pressure
loss in the suction piping - pressure loss due to the
suction strainer.

Is This Answer Correct ?    134 Yes 20 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

I need the complete syllabus and model Question paper for Written exam of JINDAL STEEL AND POWER LTD.,for MECHNAICAL ENGINEERING branch

2784


why we are using mineral wool as insulation material than glass wool , in india?

1544


Explain the advantages of diesel engines?

705


What phenomenon becomes when air mixed with refrigerant?

1544


In si units, one ton of refrigeration is equal to ?

698






22216 CC bearing

1326


Define ferrite?

679


When mesuring the flow of liquid what are the two things to measure?

847


If 320 grade Gear oil is used in a reduction gear box,what can be themaximum operating temperature of the gear box?

1611


If percentage elongation of a material is more than 200%, it is classed as ?

807


Explain the difference between the flight of a plane and a helicopter?

607


What are the types of pump can be found in the engine room

1436


How to exite natural frequencies in a overhung rotor

1637


Explain the formula of heat loss in a pipe.

647


How much pressure on air reservoir?

1433