[Stoves] Purple flame

[Dean Still]

Hi Tom,

Oh, my gosh!

Maybe I'm entering the 'just passed 60 Purple Phase' and that's why the
world has been seeming a bit lovelier lately?

Best,

Dean

On Mon, Sep 24, 2012 at 8:44 AM, Tom Miles <tmiles at trmiles.com> 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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