[Stoves] the 150 gasifier in operation in Vietnam

[Paul Olivier]

See comments below.

On Sun, Mar 4, 2012 at 4:29 PM, <ajheggie at gmail.com> wrote:

> On Sun, 4 Mar 2012 05:44:19 +0700, Paul Olivier wrote:
>
> >Someone had left a wire strainer on the floor of the university building
> >where I was working.
> >By chance the wire stainer had the same diameter as my burner housing.
> >When I put it over the burner and burner housing, it fit perfectly and
> >turned red hot.
> >I had never felt such heat before.
> >
> >So I went to the local market and found wire strainers of finer apertures.
> >These worked much better than what I first tried.
>
> It all sounds logical to turn a low emissivity flame to radiant heat
> like this and heat transfer seems the next area for big improvements
> with a clean burning stove.
>
> I imagine as long as the wires are kept above the autoignition point
> of the gases in the flame or the flame has completely burned out
> before touching the strainer there won't be much effect.


I am not sure if I understand what you are saying here.
>From what I observed, the gases have to burn below the wire mesh.
If they go through the wire mesh and then burn, then the wire mesh turns
from red to black.
Most of the gases burn close to the burner holes.
But there are always gases that rise in the dome and hug the underside of
the dome.
There they burn right on the underside of the dome.
The wire mesh dome gives structure to the diffusion tail
 and does not allow it to be so easily influenced by the random movement of
air or wind.



> I wonder how
> this sits compared with the wire gauze in a Davey Safety lamp, which
> is there specifically to remove the source of ignition from the gases
> outside?
>

Again, I do not understand your point.
Please clarify.
So sorry.

Paul Olivier


>
> Have you managed to analyse the offgas before it is burnt to see if
> the blue flame is down to CO or just good premixing?
>
> AJH
>
>
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-- 
Paul A. Olivier PhD
27C Pham Hong Thai Street
Dalat
Vietnam

Louisiana telephone: 1-337-447-4124 (rings Vietnam)
Mobile: 090-694-1573 (in Vietnam)
Skype address: Xpolivier
http://www.esrla.com/
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