Below are several videos of solar
ovens you can make. The first one is the Archimedes by
GreenPowerScience. This is way too cumbersome for the average household
but I included it because they started with an old deli case with
double tempered glass for insulation. I would use this glass in a steel
or aluminum frame so that it could be opened from the front or side.
High temperature silicone rubber oven gaskets from an appliance store
would stand up to heat of 300º to 350ºF and could be used to cushion
the glass in the frame. Fresnel lenses could be directed on a vertical
steel or cast iron plate at the back of the oven for heat.
For the Eagle Solar Cooker I
would make a wire frame out of steel brazing rod or a coat hanger to
support the oven bag.
ARCHIMEDES SOLAR OVEN
SOLAR POWERED FURNACE
This is a 75 cu
ft Solar oven that took about 5 days to build. Every connection is
sealed with silicone. The maximum air temp measured with all the
mirrors in place reaches 221 F with 70 F outdoor temperature.
We have a bit more work to do as 2 collection panels are wood and
cannot handle the heat of the mirrors. The floor is plywood an is not
affected. Without the mirrors the maximum temp achieved is 201 F.
Raising 75 cu ft is a task. This oven gains about 3 F every minute up
to 150 F when exposed to sunlight with no mirrors. After that it
increases 1F every minute. Woods ignition temperature is higher than
what we will be needing so the frame works well and is an excellent
insulator.
Solar
Cookers: How To Make An Eagle Solar Cooker
This kind of cooker requires one heat-resistant plastic oven bag
("turkey roasting bag") and a pot (preferably black) with a lid.
It can be made out of a single piece of cardboard or it can be
constructed out of 11 smaller pieces duct-taped together. The easiest
way to make one is to make a set of paper pieces first, then trace them
onto the cardboard.
Four kinds of pieces are used to making an Eagle. Four plain sheets
complete the pattern.
Once the pieces are cut out, they are assembled with duct tape. Then,
ordinary foil is glued on, using gluestick or white all-purpose glue.
To make any exposed cardboard surfaces more water-resistant coat with a
50/50 mix of white glue and water.
Slant
Faced Solar Oven
Here is the full view of the slantfaced
oven. The cost to build this oven, including buying the oven
thermometer cost me approximately 9 dollars. The tiles were given to me
for free. The large metal plate in the bottom, is 1/4 or so thick, and
very heavy. I can put approximately 3-4 pans of food in to cook. It
made it handy to be able to cook several meals and cakes ahead of time
to eat on for several days with this oven. It was well worth the effort
to build. Been using it for a year now. Not bad for 9 bucks.
Greg's Solar Oven [Best Pot Roast Ever]
I've had a couple machine shops so I have a fairly good idea of what makes things tick. But I'm also
a pastry chef who can make the best Carrot Cake, German Chocolate Cake,
Italian Coconut Cake, and Double Chocolate Brownies you've ever tasted.
For anyone who wants to try my recipes (which I normally don't give
out), just sign up for my newsletter, Green Way Today, on the Home page
and send me an email at dave@solarwindpower4u.com and I will pass them on to you. Dave Wheaton
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