Good Morning Tone,
I have studied much your charging regulation system.
Three phase AC.
I can follow this as I was an automotive electrical specialists for many years. ALL, I ever worked with (except one old obscure) were at their hearts 3 phase AC also. With a DC made variable field.
Here; US and Canada, we use at the personal consumer level only single phase AC.
Sigh. It is weird. An relatively poor to weld with versus three phase.
Now onto your gasifier “Properties” topic.
I am now realizing doing trial simulations just how important in a downdraft wood gasifier the above jets ACTUAL VOLUME is to the; below the jets EFFECTIVE VOMUME.
“Effective” below the jets is the actual working volume AFTER the char-ash cone and coating ash crust have formed.
Joni last pictured this the best on his GJ 9.0 beginnings topic pictures set. Viewing down only removing the loose center materials.
In all of the publications these volumes proportions are inferred by the nozzle ring dimensions; the base recommended diameters and height settings.
And taking wood gasifier systems with known good performances; assuming they must be within a range of best-use; then a mathematical chart of volume ratios could be made up.
For woodgasifers I can now state why I see this volumes concept works.
As the wood burns down to wood charcoal it shrinks in volume.
And to keep a tight bed of hot wood charcoal that ALL gases must pass through formed . . . then the effective materials holding volume must shrink proportionally also.
Most systems are making the below the jets effective after ash-crust build up TOO SMALL.
And the straight tube walls systems this below the jets is TOO LARGE versus the raw wood volume possible above.
Regards
Steve unruh