Infrared radiation from the sun is focused by a parabolic mirror to heat the brass tubing.
Use plastic sheet and water to make sun parabolic.
And since that water has been heated by the sun s rays and turned to vapor it is distilled.
Cut the abs pipe into two lengths each 20 25 long.
Not reflective the incoming signal.
When cutting lengthwise be sure to cut in a single channel for the whole length.
Use polyester laminating resin fiberglass resin and 1 or 2 layers of fiberglass cloth to cover half of it keep it this for light weight.
The easiest way is to cut and fold a flat sheet into a parabolic dish.
Use the paper reference to set the angle at the apex of the form then measure the wide end.
Use an exacto knife to cut the corrugated plastic sheet to 22 x90.
Get a large smooth beach ball the larger the better because the outer edges of the dish we ll make have to be cut away since they r perpendicular to i e.
Check that when a cap is placed on either end the total length is 22.
So i set about making a mold for the dish.
The finished form for marking the panel template.
Sun sunlight proposed parabolic solar water heater constructed of plywood exterior of which is painted black and then covered by a clear acrylic sheet.
Use a paper towel to flatten the aluminum sheets and use a pair of scissors to trim any extra pieces of the material.
For me a 6 inch ba.
Clamp a piece of cardboard to the form and trace both sides to make a template.
Use the template to mark the cardboard for the panels.
Basically my dish will be made from concentric cones to mimic a parabolic dish and to give the desired concentration of light.
The flat sheet can be as cheap as cardboard.
However water resistant material such as plastic or metal will last longer.
Then glue a layer of aluminum foil on its inner surface for reflectivity.
Carefully cut out the panels all 16 of them.
Make a parabolic solar dish from an 8 by 4 sheet of plastic without too much waste.
My goal was to build a device using 123d make that illustrates the power of the sun and has many practical uses.
I saw that i could make a 3 hour 45 degree compound parabolic dish to shine the light on this pot.
This adds to the overall finish of your now completed parabolic solar concentrator.
What you will need.
Deciding shape and size i chose a pot painted it black and used it in a model to decide on a good compound parabolic dish.
A clean plastic tarp sheet or in a worst case scenario a plastic bag paracord as.
Step 5 finishing up.
Grill campfire or a homemade parabolic dish at the ready this version is very easy to make and can be stored for potential future.
I decided to make my solar water heater by creating a mirrored parabolic dish that focuses sunlight to a point then add copper tubing that runs a thin stream of water through the very hot focal point creating near boiling water on.
I picked this width so it would fit between the roof rafters in.
Side view of solar water heater units for rural use for homes off the grid.
I need to make a half parabolic dish for a solar cooking project and i am trying the cone method.