[Stoves] Purple flame or purple haze (aka jimmi hendrix)

B.C. Romero Orellana bcromero at gmail.com
Mon Sep 24 21:16:44 CDT 2012


interesting,
can it be potassium from any unbalance or kind of plant that you use to
make the briquttes?
To perform  metals identification you may  burn a sample  and to find a
characteristic coloration help to identify it.

2012/9/24 Richard Stanley <rstanley at legacyfound.org>

> Dean,
>  I agree with Tom and by (my own) extension: What did yo have to dink the
> night before ?
> Seriously, its an intersting phenomena eh? We see it in burning different
> kind of briqettes too, usually at near end of burn and ususally down in the
> lower end of the center core. Am all ears here, as I have never tried to
> parse it out to particular blend or stove type …
> Richard
> Legacyfound.org
>
>
> On Sep 24, 2012, at 8:44 AM, Tom Miles wrote:
>
> Dean,****
> ** **
> If you are the only one seeing it, is that a purple “flame” or a “Purple
> Haze”? Maybe it’s a generational thing.****
>
> Tom****
> ** **
> *From:* stoves-bounces at lists.bioenergylists.org [mailto:
> stoves-bounces at lists.bioenergylists.org] *On Behalf Of *Dean Still
> *Sent:* Sunday, September 23, 2012 5:11 PM
> *To:* Discussion of biomass cooking stoves
> *Subject:* [Stoves] Purple flame****
> ** **
> Hi Stovers!****
> ** **
> I've been noticing a shift from blue flames above the burning bio-char in
> a TLUD to purple flames nearer the end of the burn when the bottom of the
> pile is glowing bright orange. I suppose that the blue flame is caused by
> burning CO but I wonder why the purple forms after the blue? The blue self
> sustaining flame doesn't heat the water in the pot as well as the purple
> flame phase although the pile of bio-char is fully ignited at that time and
> may account for the more rapid rise in water temperature.****
> ** **
> Any ideas?****
> ** **
> Best,****
> ** **
> Dean****
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-- 
Carolina Romero
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