Dew Point calcs
Dew Point calcs
(OP)
Hi Everyone
I need to know how can calculate the dewpoint in a tank that was opened. We are going inyect N2 to displace the O2 or Air and the client told me that the purge end when the N2 dewpoint coming in is ~ N2 dewpoint coming out. I was told that -60F or lower (1 atm) is a better temperature.
Any help will be appreciated
I need to know how can calculate the dewpoint in a tank that was opened. We are going inyect N2 to displace the O2 or Air and the client told me that the purge end when the N2 dewpoint coming in is ~ N2 dewpoint coming out. I was told that -60F or lower (1 atm) is a better temperature.
Any help will be appreciated





RE: Dew Point calcs
RE: Dew Point calcs
Thanks for the info. But have you done some cals before to get those numbers?
RE: Dew Point calcs
RE: Dew Point calcs
RE: Dew Point calcs
Goober Dave
RE: Dew Point calcs
If you think there is 100 pounds of water and N2 at 100F can pick up 300 pounds of water for every 1000 cubic feet with perfect mixing, then it would take 3000 cubic feet (assuming 10% efficency) to get all the water.
so how do you know how much water is in there.
You could add 100F N2 and measure the N2 coming out and once the temp is close to 100, you know you have exchanged all the air.
RE: Dew Point calcs
You might find it interesting to read this article in the online Citizendium encyclopedia:
Dew point
Milton Beychok
(Visit me at www.air-dispersion.com)
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