Hello, all.
I'm not an engr (though I had originally planned to become one!), and
my Dad who was a ME has passed away now, so I don't know whom to ask
this question.
Can anyone point me to some SIMPLE charts, or a simple formula, for
figuring out how relative humidity changes with a change in temperature?
I tried looking at Dad's psychometric charts (he was a plant engr for a
bone gelatin factory way back when, and they had some sophisticated
progressive drying systems), but those charts require the use of a
sling psychrometer, and get into all kinds of variables, when all I
want to do is change one variable - temperature ? and see how it
changes RH.
Here's the application:
If I have air at 70°F which is 100% RH (i.e., saturated), and I heat
that air to 130°F without adding any water to the air, and without
changing the air's barometric pressure, how can I figure out the
relative humidity of the resulting air?
Would the change in relative humidity be inversely proportional to the
increase in volume, by any chance? (That seems intuitive to my liberal
arts sensibility...)
Thanks in advance for any clues.
Jones
- posted 15 years ago