FRESNEL LENS 2 SUN COLLECTOR Melting steel with solar power
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6:30, hahah why did you touch it
2 years ago 9
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lol @ when you stick your hand under it and scream "OW F**k"
4 years ago 7
All Comments (38)
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have a small'ish graphite (black) crucible. Get the large, light-weight mylar mirror out of a rear-projection T.V. Reflect the high-noon sun into the horizontal. Employ a fresnel lens to heat the face of the crucible. Use two mirrors and two lenses - come in from either side. Wear brazing glasses - get to see what you're doing.
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heat the ceramic substrate (black) till it's cosmically hot .. then move the zinc over it.
A graphite boat might be the best answer .. you're always going to have to contend with the reflectivity issue. I say best to heat the vessel. Be good if you could reflect the light at a 90 somehow .. come in from the side. Employ a plurality of magnifying lenses - Fresnel or otherwise.
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new way of fast cooking? LOL
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melting Zinc and melting Steel- any alloys is about a TWOTHOUSAND degree Fahrenheit difference. this video is not properly named for starters.
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@GREENPOWERSCIENCE Awesome! I would like to see it. Eventualy I want to set something like this up. Keep up the good work you've got a lot of people thinking!
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how about a mirror under the pan
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loool
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Have you ever tried putting it into a mold of some kind? Or made simple items with it?
AManOfHope 1 year ago
I have an art video for a Berlin Wall project I did in 2008. I will post soon. Zinc is a GREAT low temp petal for molding.
GREENPOWERSCIENCE 1 year ago
I make jewlry..would this be an good way to melt small amounts of gold and silver to cast? What would be the smallest lens I would need to do pieces that weigh like say 5 grams?
pvampire 2 years ago 2
You would need a Spot lens, 33" X 44" (CORNER TO CORNER 55" MODEL) for 5 grams, also a small crucible to keep wind off and heat in. The reason you need so much extra power with gold and silver, other than the higher melting temperatures is the shiny quality. Much light is reflected so you have to gain as much as possible above their melting points.
GREENPOWERSCIENCE 2 years ago