[RE-wrenches] Solar cooker plans request

[Ray Walters]

I recall seeing simple cardboard box models being demonstrated by NMSEA  
at Solar Fest.  They would get to about 275 F, while their huge trailer 
mounted mirror device got to about 325F, as I recall. The main flaw in 
all solar cookers is no backup source of heat, so that if it gets 
cloudy, etc.  the temp could drop and allow stuff to possibly spoil.  I 
always wanted to come up with a design that used propane if the temp 
couldn't be maintained with solar.  I think we would see much wider 
adoption of the technology.  Adding thermal mass would help too.  I 
think that is one advantage of the traditional Orno adobe ovens: they 
conserve wood, and heat very evenly.
Solar cooking won't replace a skillet, but it lends itself to crockpot 
type simmering; if the sun is shinning....

R.Ray Walters
CTO, Solarray, Inc
Nabcep Certified PV Installer,
Licensed Master Electrician
Solar Design Engineer
303 505-8760

On 3/12/2015 12:54 AM, Allan Sindelar wrote:
> Wrenches,
> Our closest rural neighbor spends part of each year in Guatemala. She 
> emailed me a request:
>
>     I have a friend who can help me construct a solar oven or cooker
>     if we can find good plans.  Illustrations are the most important. 
>     I have access to pine lumber, glass, but nothing too
>     technologically advanced.
>         I also want to buy panels when I get back to NM to install on
>     my home here.  I have an electrician friend with experience here.
>     Any help is greatly appreciated
>
> This is a bit off of our usual topics, but still consistent with RE. 
> Can anyone send a good web link or other resource that meets this 
> request? I will forward it on.
> Thanks, Allan
> -- 
>
> *Allan Sindelar*
> allan at sindelarsolar.com <mailto:allan at sindelarsolar.com>
> NABCEP Certified PV Installation Professional
> NABCEP Certified Technical Sales Professional
> New Mexico EE98J Journeyman Electrician
> Founder (Retired), Positive Energy, Inc.
> *505 780-2738 cell*
>
> **
>
>
>
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