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Posted for "Ed Anderson" <eanderson@carolina.rr.com>:
Chad, those are calculated numbers. I think I found the problem with my use
of the model.
and yes, the basic formular I use for heat transfer is the one you cite in
your message. What I was trying to find out was if I knew the mass flow and
the BTU requiring rejection into that mass flow, could I determine the
expected delta T.
As you say this is a complex phenomona and my simple model may just be too
simple
I am working on trying to factor in such things as the "thickenss" effect
both on delta T and air flow, etc.
Ed Anderson
RV-6A N494BW Rotary Powered
Matthews, NC
eanderson@carolina.rr.com
Ed, are these calculated or measured numbers? If calculated, what's the
formula being used?
Here is what the temp rise model gives (all temps in farenheit):
OAT Delta T Exit Radiator
0 34.9 34.9
30 35.59 65.59
60 36.15 96.15
90 36.02 126.02
120 37.48 157.48
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