Quote: (Originally Posted by
Gill Envy)
My understanding of the theory behind radial scrubbers is that they essentially have a much larger surface area of exposed sorb to exhalled air, increasing the dwell time and therefore allowing the sorb to be used more completely with less chance of breakthrough. My understanding is that there is less chance of the reactant front migrating substantially during increased work loads. My understanding of an axial scrubber is that because dwell time can diminish exponentially with increased respiration that a much more substantial buffer needs to be calculated in terms of the migrating of the reactant front... like 50%, in order to prevent breakthrough co2, so we theoretically are throwing away roughly 50% of our scrubber each time on an axial scrubber.
hello Gill, sorry to put is quite blunt, but this is, hm, hm, complete nonsense...... dwell time, well, we already spent some time about it, is ONLY dependant on the amount of sorb you have in your system, XX kg, and NOTHING else, not the shape, not the form, nor axial or radial, just kilo's..
the more kilo's, the more dwell time...(if kept all the rest equal, RMV, ..)
the difference between radial and axial is mainly the thermal behaviour, how to keep the warmth in your system, how to prevent part of the sorb beiing cooled down, and in that way making a path of less efficient sorb, and faster breaktrough.
IF, and only IF, sorb efficiency, or absorbant capabilities, would be not lineair with gasspeed through the sorb, in that case slow flow would eventually increase efficiency, but the dwell time itself would still be the same...
with best regards
paul