Subsurface mobile general question

[Paul-Erik Törrönen]

On 11/15/21 13:53, Robert Helling wrote:
> So my guess would be that during the ascent you dropped f times the 
> amount of diluent used during the dive of O2 that was coming from the O2 
> cylinder. So, to find the metabolic O2 consumption, that should be 
> subtracted from the gas use from the O2 cylinder.
> Does that make sense?

Well ugh, you went to log so I can't tell anymore (my math-skill is crap 
nowadays), but since you essentially have a model here, then one way to 
test this would be to run it with input data of depth and measured pO2 
(instead of the sp), as well as the actual fO2 of diluent for a number 
of simple descend-ascend profiled CCR-dives, and see how closely the 
observed O2-cylinder pressure matches the one from the model.

The volume of the loop would not be a factor if all the dives are done 
with the same rebreather model.

Poltsi