Trace-users Digest, Vol 64, Issue 2

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Interesting discussion.

It's easiest if you can get the "whole assembly NFRC value" which is quite
often on the Spec sheet, or even a marketing cutsheet. Sometimes, the fine
print of the spec sheet will even say "NFRC values calculated using the
Window 6 program" (or whatever version of the Window program they happened
to use!)

Of course, this ties into what Mr. Ellison says: i.e. just calculate the
whole assembly NFRC via the Window program. I have seen comments asking for
the specific calculations from the Window 6/7 program . Thus calculating
the NFRC with frame effects via the Windows program would be the next step
if not provided by the mfg.

Regarding the spreadsheet calculations - I'm sure you can do the NFRC
calculations via spreadsheet but I have not tried this myself. The Window
program is pretty easy to use, maybe easier than a spreadsheet, after
you've used it once.

Hopefully manufacturers catch on and start including assembly NFRC values
as standard data

Bob

?

On Wed, Apr 2, 2014 at 5:15 PM,

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