solar powered cookers or ovens or something?

Question

i am looking for an outline of how to make a solar powered device used to heat water to kill bacteria or to cook with or to heat water and the total size of the devise can only be two foot square.



for the person who can give me the best outline i will pick as best answer, I promise, thanx to anyone who can help me.

Answer 1

solar heating is really pretty simple

Just get a cardboard box. Line it with foil the shinny type, even on the flaps. fix it so you can turn it as the sun moves so you can move it every hour if needed. Put a wire frame in it and paint the frame black. Use black pots and pans in it.

Cover the top of it with a sheet of glass if you want to bake a cake. or use it as an oven.

I have tried it and you can get the inside well over 200 deg F if you need you might get it up to 300 deg.

I build a solar room heater and made prints if that would be useful to you. http://www.oynot.com/solar-heater.html

Answer 2

A two foot square Fresnel lens should do the trick, pump your water through a thin copper pipe that is placed at the focal point of the lens. The hot water could be circulated into a pot and back through the heated pot.
The point is that you can't focus the sun on the water, cause duh, so you need to heat up an object with the sunlight which then heats the water.
Don't even think about using a photovoltaic cell, those things are hugely inefficient

Answer 3

You could cook small bits of food with a magnifying glass.


Just would need to engineer a larger version that focused the sun's rays upon the food with several magnifying glasses.

Or as an oven you could create a solar oven by heating bricks or metal with the food inside the enclosure, using radiant heat to cook the food. In a hot desert or arid place you can cook food on flat rocks.

Answer 4

2 square feet isn't much. current solar panels are making about 1/11.5 W /sq in. so 12x24 means you can get about 25W to work with.
even the original easy bake oven took a 100W light bulb.
with 25W you could run a UV light bulb. UV light is known to kill bacteria. So idea one is have a solar panel lighting a UV tube bulb inside another tube through which contaminated water flows.
Here's a cooker that plugs into the cigarette lighter of the car. It uses 78W. If you beef up the insulation to three times R value, maybe a solar powered version could work the same way.
http://www.roadtrucker.com/12-volt-cooking/12-volt-portable-slow-cooker-crock-pot.htm

Answer 5

Yes, Himin Solar can supply many cookers or ovens and you can contact Himin if you need.

Answer 6

i do no longer see procedures to do it. i anticipate the field is the two produced from cardboard or timber, and because the two are unfavourable conductors of heat, neither will permit an significant volume of the sunlight's warmth in. i do no longer see how using foil in any way will help the situation. even once you talk the warmth trapped in a motor vehicle on a warm day, the temperature in all probability won't exceed 200 ranges F. i do no longer understand of any recipes that require an oven temperature under 325 ranges F.

Answer 7

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