[Stoves] Sterno stove with many advanced features

[Ron Larson]

AD and list:

   To answer your last-sentence question - my guess is that there are at least a hundred companies in the biofuels business using various "bugs" to convert biomass to liquid fuels.  There are probably as many working with algae.
   To my knowledge the most economic are those producing ethanol from bagasse (or sugar) using yeasts (best economics in Brazil).
   But I think you must be asking a different question. Are you asking if anyone is doing this without the "bugs"  - only "emulating these organisms"?   I believe there has been a little success getting hydrogen from light hitting some solid state materials - but still tiny efficiency.  
   The best success I have heard of has nothing like " organisms" - only pyrolysis.  See the web site:  www.coolplanetbiofuels.com.  Instead of days for conversion, they have "drop-in" fuels in much less than an hour - and relatively low capital expense.  The best part from my viewpoint is the co-product Biochar, so they claim they can have N100 fuel (fuel that has as much carbon negativity as carbon neutrality). Very little CO2 production -I guess because of clever use of catalysts.
   They might not agree, but I think a gel might be possible.  In any case, a popular camping fuel in US is gasoline.  Might replace sticks in rural India?
  Does this help?

Ron


On Sep 10, 2012, at 9:09 PM, Anand Karve <adkarve at gmail.com> wrote:

> Dear Crispin,
> you are quite right about the lessons from the past. Some of them are billions of years old. I cite here the example of the methanogenic archaea. They have ability to extract oxygen from their substrate, so that they can convert sulphate into sulphide, nitrate into ammonia etc. One of the fantastic things that they can do is to convert carbohydrates having relatively low calorific value into hydrocarbons, having very high calorific value. Is anybody working on emulating these organisms to produce hydrocarbon fuels from abundently available carbohydrate like cellulose?
> Yours
> A.D.Karve
> 
> On Tue, Sep 11, 2012 at 2:16 AM, Crispin Pemberton-Pigott <crispinpigott at gmail.com> wrote:
> Dear Friends
> 
>  
> 
> There is an interesting design for a stove available from http://www.freepatentsonline.com/2877759.pdf
> 
>  
> 
> It is a stove designed by Albert J Giese of Denver Colorado in 1954 (patented 1955).
> 
>  
> 
> It is remarkably ‘modern’ in that it has a pot skirt, preheated secondary air, a ‘snuffer’, and the ability to burn gel fuels, and it you leave out the fuel container, wood or charcoal or pellets. I understand that is packs into itself to a certain extent. It is probably much smaller than might be expected looking at the drawings. I think the fuel container is about 90mm in diameter.
> 
>  
> 
> There are several design elements common to the ND-TLUD’s, the POCA, the Peko Pe, Paul Olivier’s fan+TLUD and the Envirofit (their charcoal stove).
> 
>  
> 
> As people keep reinventing the same general layout, perhaps there are lessons from the past that we should not forget easily.
> 
>  
> 
> Regards
> 
> Crispin
> 
>  
> 
> 
> _______________________________________________
> Stoves mailing list
> 
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
> 
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
> 
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://www.bioenergylists.org/
> 
> 
> 
> 
> 
> -- 
> ***
> Dr. A.D. Karve
> Trustee & Founder President, Appropriate Rural Technology Institute (ARTI)
> 
> 
> _______________________________________________
> Stoves mailing list
> 
> to Send a Message to the list, use the email address
> stoves at lists.bioenergylists.org
> 
> to UNSUBSCRIBE or Change your List Settings use the web page
> http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org
> 
> for more Biomass Cooking Stoves,  News and Information see our web site:
> http://www.bioenergylists.org/
> 
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.bioenergylists.org/pipermail/stoves_lists.bioenergylists.org/attachments/20120910/8e693632/attachment.html>