[Stoves] Fw: Small metal grate makes big impact on environment, health | Iowa Now

Mon Apr 10 01:28:18 CDT 2017

Dear Cecil,

You may be interested in Ben Stoves, which can be made with simple 
means. It is an open source appropriate technology completely documented 
at: http://solarcooking.wikia.com/wiki/Ben_2_and_Ben_3_Firewood_Stoves 
and (spanish) 
http://www.terra.org/categorias/articulos/hornillos-de-lena-ben-2-y-ben-3-de-dieter-seifert.

It contains a simple grate, incorporated in an ash pan.

Kind regards,
Dieter

Am 09.04.2017 um 20:46 schrieb cec1863 at gmail.com:
> Here is my response to Nikhil post about a stove insert costing $1 
> that reduces fuel consumption by +/- 60% and fits inside traditional 
> clay stoves and/or 3 stone fires.
>
> ‎A complete description of the metal insert is provided in the 
> November issue of Solutions from the Un of Iowa.
>
> I am interested to hear about other examples of incrementally improved 
> traditional stoves like the Keren traditional stove which Crispin and 
> GERES have developed in Java which embodies 4 different innovations:
>
>  1. a metal or ceramic grate to insure primary air flow from beneath
>     the burning wood,
>  2. relocation of multiple air holes to one air hole opposite the
>     mouth of the stove,
>  3. much lower and flatter pot rests to reduce excess air flow through
>     the combustion chamber,
>  4. Introduction of an ignition tube, pipe or cone to reduce emissions
>     and accelerate the lighting of fires.
>
> My personal interest is to learn about other examples where 
> traditional stoves have been technically tweaked at very low costs 
> which are affordable by most householders. As a result of the higher 
> performance of a radically improved traditional stove from the 
> perspective of stove users and buyers, the benefit delivered simply 
> over power  the natural of the stove users/buyer's resistance to 
> change and rapidly result in spontaneous dissemination and widespread 
> acceptance by stove users with little or no subsidy from  government 
> programs or inducement by stove promoting and disseminating NGO's.
>
> To some extent that is the story of the Kenyan Ceramic (lined) Jiko 
> (CKJ) and now it seems Crispin is tweaking the traditional stove in 
> villages in impoverished rural ‎communities in Kyrgyzstan to create 
> stoves which are locally produced by metal workers that perform so 
> well according to local standards that these radically higher 
> performance stoves are now demanded by the rural buyers. The cooks and 
> operators are demanding that the stove makers produce these outwardly 
> traditional looking stoves that
>
>  1. save so much coal,
>  2. do not leak smoke into rhe houses, and
>  3. only have to be fueled two times in 24 hours.
>
> ‎I am pretty sure there are similar success stories out there 
> documenting other instances of spontaneous stove technology transfer 
> and almost instant "instituitionalization" of affordable, 
> unsubsidized, radically higher performance locally produced stoves??
>
> Increase my amazement with other stories about the nearly spontaneous 
> acceptance of radically improved traditional stoves that happens 
> inside the context of the traditional stove system and culture.
>
> Cecil the Cook
>
> Sent from my BlackBerry 10 smartphone
>
> Dear Nikhil et al,
> Nikhil, thank you for this connection to a stove aficionado at Iowa 
> State Un.
> Can we see what this insert looks like? Have you seen it? Is his claim 
> of 60% savings possible? I think such savings are possible. What did 
> we and GERES get with the improved Karen stove in Indonesia?
> As a development principle I support the idea of an in situ approach 
> to stove technology innovation that uses the traditional stove as a 
> starting point and then gradually introduces small changes in its 
> design based on real stove science.
> I also agree with a self help approach that sees technology change as 
> an opportunity for indigenous stove makers to learn how to fabricate 
> better performing stoves and also to learn about and internalize the 
> scientific reasons - translated into the ethnoscience of the local 
> culture - which makes sense of why and how these small changes 
> radically improve the performance of culturally and environmentally 
> situated "old faithful" traditional stoves
> I realize that technology mostly changes slowly by making small 
> incremental i‎mprovements. But occasionally it changes drastically 
> because of the arrival of totally new technologies that are so 
> powerfully improved that the new technos rapidly replaces the 
> traditional technos. Many social, economic, political, cultural, and 
> environmental fasctors shape the process by which both big and little 
> changes in technology take place.
> My optimization strategy is to figure out what are the biggest 
> progressive, easily affordable, and sustainable changes in stove 
> technos ‎that a stove-operator-fuel system change program can 
> introduce into a particular stove using community with the smallest 
> investment of scarce resources for the purpose of promoting the 
> greatest amount of change (improvement) in the efficiency and emission 
> performance of an established traditional 
> stove-fuel-cuisine-operator-fabricator-seller system's.
> Therefore, I am interested to see if the combustion enhancing metal 
> grate insert is spontaneously and rapidly adopted by the stove using 
> community for which it was developed and to which it was offered as a 
> stand alone improvement. If the stove technos innovation is right and 
> it manages - for the right price or additional self help labour cost - 
> to optimize enough of t‎he locally important and culturally recognized 
> stove performance parameters the in my experience such a stove 
> innovation should spontaneously spread like wildfire!
> It occurs to me that we can learn a lot if we look around the world of 
> "traditional" stoves ‎to find areas and communities where different 
> types of stove technology innovations - once introduced - have 
> spontaneously and rapidly spread with little or no outside agent 
> promoting or subsidizing their adoption and spread. What are the 
> "necessary and sufficient" conditions required to trigger a rapid 
> pocess of spontaneous adoption of a range of simple to more complex 
> innovstions in stove technos?
> Here is Nikhil's link to an intervention reaching 2000 households in 
> village India with locally fabricated metal grates inserted into 
> otherwise unchanged traditional mud stoves. Perhaps we should 
> encourage more of these types of experiments and search for additional 
> examples of spontaneous and rapid dissemination of stove inovations 
> around the world??
> https://now.uiowa.edu/2015/12/small-metal-grate-makes-big-impact-environment-health
>
> In search and service,
> Cecil
> Sent from my BlackBerry 10 smartphone.
>
>
>
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