X-Mozilla-Keys:                                                                                 
Al Gietzen wrote:

Fred;

Thank you for spending the time and effort to scope out the graph.  I think
the graph very clearly shows one important parameter.  Given the shape of
the curves (and not knowing the psi of the radiator) you want your diffuser
to slow the air by at least a factor of 4 or 5 (w/V of 0.25 - 0.2); and that
the gains from slowing more than factor of 5 (w/V = 0.2) are marginal.

Al Gietzen

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