Scott

Steve,

I am not an engineerer.. but..
I can see logic.. in both explainations..

By the flowing along the radius, the Radial scrubber is going either from a larger surface area, to a smaller.. or conversely from a smaller surface area, to a larger.

When passing through the larger surface area, it should have a lower velocity, and while passing through the smaller surface area, should have a higher velocity.. which is shown in theory in Paul's spreadsheet..

As you suggested that his explaination uses static flow, versus more human tidal flow.... I would think, would affect both designs similarly?

On the Axial design, it seems to me, that the dwell time would be Uniform for the entire scrubber, ... where as on the Radial the dwell time would be smallest at the inner diameter, and highest on the outer diameter.

I can see how this could be a negative, resulting in rapidly exhausting the scrubber in the outer diameter volume, and not allowing sufficent dwell time to utilize the inner diameter volume...

Maybe you could explain to me.. in regards to axial scrubbers, why it is more common to have tall, smaller diameter design versus a short, large diameter design.


In my mind, given the same volume, an nearly equivalent amount of gas passing through whether tidal or continual, (difference due possibly due to WOB).. It seems, that the larger diameter cannister would reduce the velocity of the gas such that the dwell time remains the same. In the smaller diameter cannister, the velocity would be higher.

My head hurts =(

Thank you for any education I will soon likely receive =)

-Scott