[Stoves] Heat-pipes/thermal-diodes

[Ronal W. Larson]

Tom:  cc List, Crispin    (new thread name)

   	The number one new thought I want to emphasize from my brief report is that of the heat pipe/thermal diode - which I have not seen mentioned on this list.  Googling found this (no fee) paper on solar cookers that is relevant:

       http://cfc.kscia.or.kr/new/wwwboard/admin/wwwboard/attach/1087363006/26.pdf

	Several other references to cooking, but this the only no-fee paper in the first ten Google pages for the search I used (with “stove”).


    	This is to ask if anyone has been trying this out with biomass cook stoves.  What working "fluid" is appropriate  (maybe lead)?  A high temperature oil?   Note this could also be very appropriate for ovens, where we mostly want no smoke.

	One cook stove could feed several ovens (or any cooking surface).  Eliminates the soot problem, also.  We could totally insulate the cook pot while cooking.

	This could be relatively low cost - just a closed pipe.  Nothing to wear out.

 	This did not come up at ETHOS.   Anyone needing the 3-pager report noted below can get from the stoves archives or write me.

Ron



On Jan 27, 2014, at 9:30 PM, Tom Miles <tmiles at trmiles.com> wrote:

> Ron,
>  
> Many people who have usually attended ETHOS are familiar with this list and go on and off the list depending on their needs. For some the list is just too demanding to keep up with daily but we can reach them easily. We might invite some in if we are discussing a topic that matches their interest or expertise.
>  
> There is substantial expertise on this list. While the web tools have improved the common element of online communication in the developing world is still email. GACC could mirror this list on their site if they were interested in reaching the active GACC membership.
>  
> Tom   
>  
> From: Ronal W. Larson [mailto:rongretlarson at comcast.net] 
> Sent: Monday, January 27, 2014 7:50 PM
> To: Discussion of biomass; Tom Miles; Crispin Pemberton-Pigott
> Subject: Re: [Stoves] Thoughts from ETHOS meeting ending yesterday
>  
> Tom, Crispin, list;
>  
>     The 5-way organizational credit probably should go to Mark Bryden.  I wished I had taken notes.  I did the write up today only because I knew I would lose it all otherwise.  Hopefully some who were there can correct and amend - before we decide what to do next. We all put our own slant on things that interest us and everyone’s write-up will reflect who we talked to. Out of 100 there, I probably only talked to 20-25.  Many will tomorrow start a few days at Aprovecho.  Maybe they  (Paul Andersion, Alexis Belonio, Christa Roth, Kirk Harris, etc.) can add to what I wrote.  Unfortunately probably fewer that half there are subscribers to “stoves”.
>  
>    I’d like to hear whether others thought the stove world is moving fast enough right now.  A doubling time (of sales) of 1 year (maybe a little less) is damn good.  I think a lot of the credit goes to GACC.  But growth like that also takes time to get started - and Tom Miles gets a lot of credit for funding this list now since late 1995.  No commensurate income!
>  
> Ron
>  
>  
> On Jan 27, 2014, at 6:54 PM, Tom Miles <tmiles at trmiles.com> wrote:
> 
> 
> Crispin,
>  
> We have worked an editorial calendar of topics before and it works pretty well if there is someone to manage the discussion around a particular topic. As usual any topic someone wants to put to the group is welcome. We could start by listing the topics of greatest  interest for discussion over the next 10 weeks and see how it goes.
>  
> Thanks to Ron for bringing us all an excellent snapshot of the conference.   
>  
> Tom
>  
> From: Stoves [mailto:stoves-bounces at lists.bioenergylists.org] On Behalf Of Crispin Pemberton-Pigott
> Sent: Monday, January 27, 2014 4:14 PM
> To: 'Discussion of biomass cooking stoves'
> Subject: Re: [Stoves] Thoughts from ETHOS meeting ending yesterday
>  
> Dear Ron
>  
> My compliments for breaking things into relevant sections. Very understandable. It would be nice to have a new discussion session here per week with a new topic each Monday. There is much to report from around the world one each of these items, both major and minor.
>  
> Thanks
> Crispin
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