[Stoves] Comments about T-LUDs

[AJH]

On Mon, 02 Oct 2006 11:37:53 -0500, Paul S. Anderson wrote:

>Test question:  Among the different types of gasifiers, in which type(s) does
>the incoming primary air FIRST create the pyroylis gases and then move to the
>zone where char-gasification can take place?

in a kiln or stove I think you are bound always to burn some char
before you create pyrolysis gases, I think there is a slight
difference in the way the tlud works compared with the down draught
and that is to do with how the heat is transferred  because the
convection currents work differently. So I say that char will always
burn preferentially to off gas in the pyrolysis zone and that its the
combustion of a very small amount of char that drives the pyrolysis in
the tlud.

AJH