How do you figure out GPM
How do you figure out GPM
(OP)
How do you figure out the GPM going threw a package unit's condenser water coil. I have differential pressure gauges that read in feet of water colume on one guage and inches of water colume on the other. Can i use this infomation to measure the GPM flowing threw this coil?
Thank you for any help you can offer.
Thorkan
Thank you for any help you can offer.
Thorkan





RE: How do you figure out GPM
Differential pressure across the condenser coil will be equal to = K* (Kinetic energy)
Where KE = (1/2)*density* (velocity)**2
K = pressure drop co.
If you know the pressure drop across the condenser and the pressure drop coeficient of the condenser you can calculate the velocity of flow through the system in any units from the above mentioned equation.
Hope I have clarified your doubt.
RE: How do you figure out GPM
Also, if you can figure out the suction/discharge pressure of the chilled water pump, you could determine flow that way.
RE: How do you figure out GPM
RE: How do you figure out GPM
RE: How do you figure out GPM
Take care,
Thorkan
RE: How do you figure out GPM
RE: How do you figure out GPM
You should start a new post with your question so everybody can see it... otherwise it will be seen only by the people that open this particular posting.
Saludos.
a.
RE: How do you figure out GPM
Crane's booklet "Flow of fluids through valves, fittings and pipe" is an excellent reference and has several examples that I think would clarify it for you. If you drop me an email at testdog2000@yahoo.com, I have some of the key pages scanned (but not the entire booklet) and could send them to you.