[Stoves] [biochar-production] Continuous TLUD for cooking

[Ronal W. Larson]

Nolbert and ccs

  	Thanks for adding this list of four selling points for TLUDs.  A few questions:

a.  Are they in priority order?  Might the order change for different types of customers?  (say by income?)
b.  Any way of saying how much of each selling point is needed to move away from a traditional stove?
c.  Does the batch aspect of TLUDs turn some/many of your customers off?
d.  Guessing the TLUDs won’t handle all cooking, can you say for what tasks they are using them (water boiling, etc)?
e.  At the recent Ethos meeting,  Michael Johnson of Berkeley Air Monitoring talked about a new approach for encouraging, for health reasons looking at daily maximum exposures, displacement of the dirtiest stoves with the cleanest.  Any information you can pass on to GACC along those lines?
f.  Do you need and have subsidies to get greater adoption rates?
g.  Anything big I’ve missed?

To others - see https://www.facebook.com/awamubiomass.  Nolbert is working with Paul Anderson.

Ron


On Feb 3, 2014, at 7:00 AM, Nolbert Muhumuza <muhumuza at gmail.com> wrote:

> Hello Ronal,
> 
> Just to add; from experience the four selling points for TLUD stoves are;
> 1. Time and fuel saving (cook faster, with much less biomass)
> 2. Use a wide variety of biomass (this has issues with chopping wood
> especially for rural Uganda)
> 3. Makes Charcoal that can be re-used in another charcoal stove or as biochar
> 4. Clean (less smoke aka toxins - but they dont really understand emissions)
> 
> These are clear for potential users when we do a demo in villages.
> 
> Nolbert.
> 
> 
> 2014-01-29, Ronal W. Larson <rongretlarson at comcast.net>:
>> Antony  - with eleven ccs
>> 
>> 	1.  First note nice help offered by Alan Cave in several messages
>> yesterday.   They did not include your original request below.
>> 
>> 	I agree with his remark that the continuous Belonio stoves that you found
>> at Paul Anderson's sites are down draft (BLDD) - and that may be the best
>> way to go.  At the recent ETHOS conference I do not recall this topic coming
>> up.  (I wrote 3-pager on that conference - available at the stoves site.)
>> The reason is the strong emphasis on stoves that cost $10-$20 - and I doubt
>> we can ever see continuous feed stoves in that price range.  I talked to Dr.
>> Belonio a good bit over the last weekend, but this topic did not come up.  I
>> include Alexis as a cc, as he is probably the best expert on this topic we
>> have.
>> 
>> 	2.   I include the stoves list, because there is apt to be more expertise
>> there on your stove question than on the Biochar-production list.  Tom Miles
>> added because he manages both lists and will have valuable thoughts.
>> 
>> 	3.   I Include Jerry Whitfield, Jock Gill, Alex English, and Marc Pare as
>> they have all written on continuous feed char-makers; but none I think for
>> stoves.  These are probably all horizontal feed (augers, moving grates,
>> etc.).   See http://www.whitfieldbiochar.com   (that is apparently in a
>> "hold" mode).  Apologies to anyone I inadvertently left out who has been
>> thinking of continuous-feed stoves.
>> 
>> 	4.  I include Dean Still and Ranyee Chiang as the best way to get this
>> topic into GACC discussions.
>> 
>> 	5.  Can you explain more on why you are interested in this topic for
>> stoves?  Do you have an upper price limit or particular stove application in
>> mind?  Would several low cost batch TLUDs operating sequentially in parallel
>> meet your needs?
>> 
>> 	I consider the non-continuous aspect of TLUDs as their biggest drawback -
>> so think we should all take this topic very seriously.  I thank you for
>> bringing it up.  In my mind, the other advantages of TLUDs (primarily time
>> savings and money-making) outweigh this disadvantage.  But it would be very
>> nice to remove this disadvantage whenever an application allows the extra
>> expense that seems sure to accompany continuous operation.
>> 
>> Ron
>> 
>> 
>> 
>> 
>> 
>> On Jan 28, 2014, at 4:43 PM, Anthill <ahilliard at gmail.com> wrote:
>> 
>>> 
>>> Hi biochar-production people. Google has failed me. Do you know if anyone
>>> developed a biochar-generating stove that can run continuously?  Something
>>> that:
>>> 
>>> - Produces water-quenched biochar
>>> - Runs continuously on pellets/chips
>>> - Unlikely to set fire to feed hopper
>>> - Flame can be used for cooking
>>> 
>>> What I'm thinking of is something like:
>>> 
>>> http://imgur.com/a/BGADk
>>> 
>>> Google has showed me:
>>> 
>>> The BEK biochar generator
>>> http://bekbiochar.pbworks.com/w/page/6465132/FrontPage
>>> - Not for cooking
>>> 
>>> Wallace's biochar generator
>>> http://terrapreta.bioenergylists.org/wallaceACpatent
>>> - Not woodgas-running
>>> 
>>> Belonio's continuous rice husk generator
>>> http://www.drtlud.com/2012/04/04/rice-husk-gasifier-new-papers/
>>> - No quenchable biochar?
>>> 
>>> 
>>> 
>>> Any thoughts?
>>> 
>>> -Antony
>>> 
>>> 
>>> 
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>> 
> 
> 
> -- 
> Nolbert Muhumuza
> 
> President & Chief Operations Officer
> Awamu Biomass Energy Ltd.
> P.O. Box 40127, Nakawa
> Kampala - Uganda.
> 
> Mobile: +256-776-346724
> Skype: nolbertm
> www.awamu.ug
> 
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