[Stoves] Safety of stoves and conflicts of interests

[psanders at ilstu.edu]

Dear Philip,

Your explanation (below) of how you made your faximile of a Lily burner does
explain your unsatisfactory combustion results.  I imagine you were quite
startled by the fierce fire!!!

What are you using as the guidance for making the Lily Burner?  One or both of
the two PowerPoint presentations that are on the Internet?

http://www.vrac.iastate.edu/ethos/files/ethos2007/Sat_AM/Session_1/Anderson%20alcohol%20stoves%202007-01-26.ppt

http://www.pciaonline.org/assets/6-01-PAnderson1_Biomass%20Egy%20Fdn.pdf

The pictures show Lily burners with too many holes.  In a three-inch (7.5 cm)
diameter metal can, as few as 10 holes of 1/32nd inch (0.8 mm) diameter make a
nice fire for simmering.  Space between holes should not be more than 
10 mm nor
less than 5 mm.  I have not had time to write all the things I have learned.

Go for it, and please send me photos and comments.

Paul

Quoting Philip Lloyd of IPC <ipcipc at mweb.co.za>:

> Dear Paul
>
> Many thanks for your comments.  I had not picked up the use of an
> immobilising medium in the Lily - but it is an important feature, and
> perhaps you need to accentuate the need for it a bit more. I tried a simple
> version without any absorbent, and it released about 100ml of alcohol in 15
> seconds, which gave a sufficiently fierce fire that it would have ignited
> anything flammable in the vicinity well before you could put the fire out
> (though the point that you can extinguish an alcohol fire easily with water
> is well taken). I will try holding back the flow with some fibrous absorbent
> as you suggest.  It will, of course, slow down the heating of the fuel, so
> there is a bit of a balance to be struck.
>
> Regards
>
> Philip Lloyd



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