Gas Density Calculator App
- Thread starter cathal
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gas density is a function of the content of the gas and the ambient pressure. ergo if you are at the same depth and breathing the same gas, then it will be the same.
CCR has a higher WoB than OC and because of that, gas density is a bit more important to prevent hypercapnia. In OC, it's usually a nonissue.
CCR has a higher WoB than OC and because of that, gas density is a bit more important to prevent hypercapnia. In OC, it's usually a nonissue.
fsardone
Solo Diver
In a rebreather the gas fraction is variable.
What the rebreather does is keeping the ppO2 constant therefore the fraction of gases change continuously.
If you have a TMX 16/50 as diluent and setpoint 1.3 you would be breathing a .87/6.5/4.5 trimix
while with same diluent at 55 meters you would be breathing a 20/40/30 so calculating breathing density depends upon pressure setpoint and diluent in a more complex way than in OC.
Cheers
Fabio
What the rebreather does is keeping the ppO2 constant therefore the fraction of gases change continuously.
If you have a TMX 16/50 as diluent and setpoint 1.3 you would be breathing a .87/6.5/4.5 trimix
while with same diluent at 55 meters you would be breathing a 20/40/30 so calculating breathing density depends upon pressure setpoint and diluent in a more complex way than in OC.
Cheers
Fabio
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