[Stoves] Sun Buckets: off topic news, introduction

Wed Jan 4 11:14:41 CST 2017

Ron and all,

I am studying the limited info about the Sun Bucket, and finding enough 
to agree that it could well be compatible with TLUD stoves (and to a 
lesser extent with other biomass stove-types.).   So it is not 
"off-topic" if, as Ron says, it can relate to biomass stoves.

I doubt that it is only $50 if including a 1.5 meter solar dish.

I will report back after I have direct contact with the company.

Paul

Doc  /  Dr TLUD  /  Prof. Paul S. Anderson, PhD
Email:  psanders at ilstu.edu
Skype:   paultlud    Phone: +1-309-452-7072
Website:  www.drtlud.com

On 1/3/2017 7:30 PM, Ronal W. Larson wrote:
> David and list  - and cc some solar cooking friends
>
> Congratulations on this modification of the usual solar cooker.  And 
> on the two awards that Sun Buckets has already won.
>
> It might seem you are on the wrong list - as we get little traffic re 
> solar cookers - and our “biomass” address would suggest this is 
> normally be the wrong place.   But I see three connections (that I 
> have mentioned recently to the ccs), that make this entirely 
> appropriate for out stove list.
>
> a).  There could be reasons to employ the same storage concept at a 
> family (maybe neighborhood) level with any form of biomass stove.  I 
> think it would fit especially well with TLUD stoves - as they could be 
> designed at a large (one full day of cooking) size - and one day’s 
> cooking could be much less time consuming than at present.  No solar 
> involvement at all in approach a).
>
> b).   There could be good reason for option a)  (such as very high 
> fuel costs) to also want to couple a fully biomass approach with (zero 
> fuel cost ) solar.
>
> c).   Every solar option needs a backup - and biomass is the usual 
> choice (except in the USA).
> The backup need not make charcoal - but the solar cookers can never be 
> carbon negative;  TLUDs can make that happen.  Which won’t happen 
> normally with a liquid (LPG) etc.
>
> So I’d like to continue this dialog with anyone interested.  Because 
> of all the option a), b), c) possibilities,  this dialog could remain 
> on this list.  I suggest we stay away from the solar-only topic you 
> brought to us.  And we can leave this list if a few think it is 
> detracting from our biomass stove dialog.
>
> I was employed at what is now NREL in Golden Colorado and have several 
> friends with extensive experience in high temperature thermal storage 
> (even little myself). I’ve been a member of SCI on and off.
>
> My friend Dr. Salih Hamadto (in Khartoum Sudan) has sold many 
> concentrators of the Scheffler variety - which I think might end up 
> being a preferred approach -  instead of paraboloids.  All the ccs 
> know about biochar - which I think has a much more natural fit with 
> your nice idea than our rocket enthusiasts.
>
> Ron
>
>
>
>
>> On Jan 3, 2017, at 12:51 PM, David Stein <ambwat at gmail.com 
>> <mailto:ambwat at gmail.com>> wrote:
>>
>> Dear All,
>>
>>
>> I am a newcomer to the Stoves list but I’ve spent some time in the 
>> household energy sector in developing Vanuatu which is where I met 
>> Nikhil.
>>
>>
>> I am fascinated by solar cooking these days.There are many potential 
>> socio-economic and environmental benefits of solar cooking and they 
>> are all very seductive.Just thinking about fuel-free and 
>> emission-free cooking is intoxicating.
>>
>>
>> However, it seems that it is difficult to achieve the potential 
>> benefits of solar cooking (especially in the developing world) 
>> largely because those that dwell in hot climates (which is where much 
>> of the developing world seems to be located) have developed 
>> lifestyles that minimize exposure to the sun whereas most methods of 
>> solar cooking require the cook to be out in the sun, often at times 
>> of the day that aren’t typical cooking times.These facts make the 
>> difficult task of changing the cooking habits of cooks even more 
>> challenging.
>>
>>
>> But it appears as though the Sun Bucket 
>> http://www.sunbuckets.com/“cracks all of these nuts.”This amazing 
>> innovation is “charged” with the heat of sunshine and the heat is 
>> stored in a “sun bucket” (phase change “”battery”) where it can be 
>> used when (like in the evening or early morning) and where (like 
>> inside a kitchen) it is needed.It cooks as hot as cooking on fire and 
>> existing cooking pots and pans can be used so there is minimal need 
>> for changes in cooking behavior.It also seems very affordable.I guess 
>> it’s what they call transformational.
>>
>>
>> It looks as though a Sun Bucket should be a part of every integrated 
>> coking scheme (solar cooking when it's sunny, using an Improved Cook 
>> Stove when it's not, and maybe using a retained heat cooker with 
>> both) everywhere the sun shines in the developing world.I can hardly 
>> wait for the Sun Bucket to be unleashed to the world-wide market of 
>> cooks that could really use them.
>>
>>
>> Best wishes for the coming year.
>>
>> David Stein
>>
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>
>
>
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