Pump Question CERM Ch 18 Q7
Posted 10 April 2012 - 10:58 PM
For instance in question 1 it is solved by converting the pressure at inlet and outlet(gage pressures) to absolute pressures (Example ; Poutlet= 14.7psi + 20psi = 34.7psi(roughly))
In question 7 they do not do this. They just use to pressure gage and do not convert it to absolute pressure.
I understand everything else. I am just hung up on when and when not to convert the gage pressure to absolute pressure.
Thanks in Advance.
Posted 10 April 2012 - 11:52 PM
Just a possible thought.
Posted 11 April 2012 - 12:23 PM
I attempted to do the problem with the atmospheric pressures to see if I got the same solution and I did not.
The inlet was P=0psi (I forgot that 0psi gage is the same as 14.7psi absolute).
Now it works out correctly. Thank you.
Posted 07 May 2012 - 04:35 PM
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