very good comments, for me at least
the LMTD relies on assumptions, agreed
would prefer a datum to a derived value, but not all is possible
have to wait 'till I have some data to sort through
note that no rad air temps have (ever ?) been described, the ones I took and never published convinced me of the difficulty of accurately describing/averaging the air dT
so the wait may be a bit
we're not just sticking something into the airstream, though for the consumer estimator perhaps such would be better than nothing (or even sufficient ?)
I would not use my testing time that way however
Last edited by BillA; 10-23-2005 at 12:52 PM.
Reason: missing word
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