[Cob] Joe Kennedy comments on biochar in earth ovens

[Shawn King]

Biochar volume production, good issue to raise!  Ray, how was the
biochar implemented in the stove?  I am very curious about your
design.  I've seen the videos of the dragon (wow!!) but I would like
to know more about your char design in particular. My experience with
the canister is that my biochar volume winds up at about 50% of what I
put in the can as twigs/wood debris.  The process only took about 10
minutes or so, so I could have run multiple canister-loads on the one
burn of the oven if I had multiple canisters ready.  The oven cooked
as it normally does, so I'm sure I did not loose heating efficiency to
any practical degree. All this on only one run, so I need to repeat to
learn more.

Biochar and cob converging, yahoo!!

On Mon, Apr 25, 2011 at 12:47 PM, Ray Cirino <cobanation at yahoo.com> wrote:
> Dear Joe,
> We just launched the Dragon Pizza Oven and it was a smash hit. We ran it for five straight houts and collected at the end only a half cup of biochar.
>
> Regards,
> Ray
>
>
> The Great Challenges we now face as a species present the very opportunities that are giving birth to Ecological, Psychological, and Spiritual Sustainability.
>
>
> --- On Mon, 4/25/11, Joseph Kennedy <livingearth62 at hotmail.com> wrote:
>
>> From: Joseph Kennedy <livingearth62 at hotmail.com>
>> Subject: [Cob] Joe Kennedy comments on biochar in earth ovens
>> To: sbkingster at gmail.com, coblist at deatech.com
>> Date: Monday, April 25, 2011, 12:03 PM
>>
>> Dear Shawn,
>>
>> I have been inspired by your low-tech stuff, and am going
>> to integrate the door design into my new oven under
>> construction with high school students.
>>
>> However, it seems a waste to make biochar unless you are
>> using that heat to heat up the oven for other purposes.
>>
>> To me the ideal would be to make a biochar chamber below
>> the oven (like in Ray Cirino's example) to create efficient
>> heat and biochar at the same time.  Any ideas on this
>> option?  I can play around with this idea, since my
>> oven is still under construction.
>>
>> I love the mad science going on!
>>
>> All the best,
>>
>> Joe Kennedy
>>
>> PS.  I just published an article of my earth oven
>> odessey at Kiko Denzer's site.  It has the plans of my
>> latest oven.
>> http://www.handprintpress.com/ovens/an-earthen-oven-odyssey-by-joe-kennedy/
>>
>>
>>
>>
>>
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>