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MIke, remember you are under pressure - not at one ATA. And , as I said,
I am not sure if it makes any diffrence, and for my purpoases I assume
it does not make enough of a difference. I can say that I would always
like to get rid of CO2, but then we are not making a whole lot at deco
anyway.

Mike Rodriguez wrote:
> 
> At 06:50 PM 1/11/00 -0500, kirvine@sa*.ne* wrote:
> 
> >"breathing rate" is basicly insignificant, but you could get effects if
> >you breathed too little relative to normal breahting. The problem is
> >that you get relaxed and do not produce much CO2, and obviously have
> >very hig O2, so your reflex drops away. This could make for less gas
> >exchange, maybe.
> 
> Hmmm... I don't think this effect is significant.  I assume you mean
> that if the breath in your lungs takes on enough inert gas to reduce
> the gas tension significantly, it would reduce the rate of off-gassing;
> but if this were the case, decomression would occure far more quickly
> than it does.  Each lungfull takes away only a tiny portion of the
> accumulated inert gas which is one of the reasons it takes a while
> to decompress.
> 
> The ZH-L16 equations and constants could be used to calculate the
> actual mass of inert gas taken on during a dive and then used to
> calculate the mass off-gassed during deco.  Knowing this, the total
> deco time, and the average diver's breathing rate we can determine
> the percent saturation with inert gas of each breath and extrapolate
> the number to a non-average diver breathing only once per minute.
> I'll see if I can come up with some numbers and post what I find.
> 
> -Mike Rodriguez
> <mikey@ma*.co*>
> Pn(x) = (1/(2^n)n!)[d/dx]^n(x^2 - 1)^n


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