3 replies to this topic

[Krishna Mohan]

i need rotary and reciprocating pump equations to calculate discharge temperature 

can you please suggest what kind of methods available to calculate discharge stream  properties of the pump

 

[breizh]

http://www.pumped101.com/

 

Consider this resource , you may find answers to your query . You should also consider the search engine in this forum to support your work.

 

Good luck

Breizh

Edited by breizh, 13 August 2015 - 07:02 AM.

[Art Montemayor]

Why do you claim that a positive displacement pump will discharge its liquid at a temperature different than its suction temperature?

 

Pumps pump liquids; compressors compress gas.  Positive displacement compressors adiabatically compress the gas handled and raise its temperature according to the adiabatic process involved.  Discharge temperature due to pumping liquids in a pump is something strange to me.  Are you confusing liquid pumping with gas compression?  And even if there is a temperature increase, it is so slight that it never has come into question in my experience.

 

I am assuming we are dealing with a steady state pumping operation.  If the pump's discharge is closed, or excessively throttled, that is another question - and you haven't defined it.

[Krishna Mohan]

Thank you