Steve Spence wrote:
Just because you can't understand a concept, doesn't mean it's
babble.
Just means you should be comprehending instead of typing.......

Nick has been a foundation of this group longer than your daddy has
been
letting you use his computer .....

I don't want to get involved in anything internecine, but the "concept"
of a "virtual column" of air is ridiculous. The basic concept in
attempting to achieve uniform heating _requires_ mixing of the air
masses. How does modeling a virtual column relate to that? It
doesn't. A bad assumption was made and the resultant calculations,
which I didn't bother reviewing, are meaningless. Good numbers based
on bad assumptions lead to nothing but bad results (ignoring the odd
miracle/coincidence).

R