Apr
29
SOLAR PANEL WITH a FRESNEL LENS CPV CONCENTRATED PHOTOVOLTAIC PV SOLAR CONCENTRATOR FREE ENERGY
By
www.greenpowerscience.com Boosting the power of a solar panel by using a Fresnel Lens and doubling the sunlight reaching the panel.
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26 Comments
April 29th, 2010 at 6:05 pm
@rainbowsalads that comment was meant for the latest video were the cable was heated up and melting due to the added mirrors.
April 29th, 2010 at 6:32 pm
mains cable = lower resistance .thin cable is great for making a nice filament , but will completely rob/convert your energy to heat, maybe even light…As we see here, smoke, at least 50 percent of the energy was wasted! Probably fortunate, in that the internal circuitry was protected due to this naf cable.
April 29th, 2010 at 7:10 pm
What would be the potential for combining such a panel with e.g. solar pool system to solve all problems?
By that I mean run water through capillary pipes behind the fresnel focused solar panel as a heat sink to dissipate the heat and at the same time create hot water for your pool/shower. The idea being to combine both panels into a single unit.
I’ve not seen any vids on making your own solar water/pool heating panels… do any exist, is that even feasible?
April 29th, 2010 at 7:35 pm
five stars
uh, wait, there are no more stars
April 29th, 2010 at 8:10 pm
Great stuff dude. Thanks!!
April 29th, 2010 at 8:20 pm
array of computer heat sinks?
April 29th, 2010 at 9:15 pm
Yeah. You do have a good Channel.
April 29th, 2010 at 9:21 pm
@rainbowsalads
Thank You!+++++++
April 29th, 2010 at 9:24 pm
Greenpower science is awesome!! My favourite channel. : P
April 29th, 2010 at 9:38 pm
@brianwesley28
I know that some are wondering how to couple the two? I know how.
April 29th, 2010 at 10:27 pm
@brianwesley28
With the funding, I could put something like that into production in short order. I design a lot of things in my head because I don’t have the money to design them elsewhere, at present.
April 29th, 2010 at 11:27 pm
@brianwesley28
The Peltier cells are generally used for heating and cooling, but when they are exposed to a temperature differential, they will produce electricity. That is a form of cooling if one is converting heat into electricity, with the added benefit of producing additional electricity. I’ve also thought about fresnel lenses directly on Peltier cells, but the ones designed to withstand that much heat are rather expensive.
April 30th, 2010 at 12:10 am
I’ve thought about doing something like using a fresnel lens to do what you’ve done, while coupling Peltier TEC’s into the process to help bleed the excess heat of the enclosure, while producing additional electricity using the Seebeck Efffect.
April 30th, 2010 at 12:49 am
@gymsim most Fresnel lenses will bend like that. Not sure what the point would be in bending it. That makes the optics useless. I have seen patents for the bending? Some think it offers and endless tracking to a perfect point.
I have some Fresnel lenses that are made out of lexan, fresnel Rubberized but lens is bullet proof. will cut but not puncture.
April 30th, 2010 at 12:50 am
Hey Dan. Nice idea with using the lens! There are some applications on the web for a ‘stretched’ Fresnel lens solar concentrator for satellites. The lense material is not suppose to be as fragile, but I’ve found no evidence of it actually being used. Are you familiar with any of those experiments or the results?
April 30th, 2010 at 1:46 am
put a solar water heater rig to cool the panel and heat or preheat the water too.
April 30th, 2010 at 2:22 am
Another great video Dan, but, one question regarding the use of either the mirror or fresnel lens. Wouldn’t either require some sort of tracking system to keep the panels pointed at the sun or would this method still give the same results as the sun moved across the sky.
ThankX again
April 30th, 2010 at 2:45 am
Get a Heavy Duty PV plate!
There MUST be some manufacturer that had an idea to produce a specific PV plate to that purpose…
Any way, in these day, PV aren’t the better solution for energy. The efficiency still too poor.
April 30th, 2010 at 3:15 am
cool. i wanted to do this kind of test myself.
for cooling i would use a natural circulation copper piping that would also heat up some hot water for your house at summer. and at winter ofcourse you have to drain system because ice could damage your system. I think its worth to try since you shown >30 % more output
April 30th, 2010 at 3:54 am
true, but still pretty bad ass. lol
April 30th, 2010 at 4:04 am
They have an elaborate cooling heat sink system.
April 30th, 2010 at 4:35 am
isreal has focused ALOT more light that you have there on a spot roughly one square foot…it didnt melt. its on youtube . search isreal solar farm
April 30th, 2010 at 4:50 am
3. There was talk of a film of water running over the cell increasing the amount of light energy hitting the cell. It would seem to me that unless a larger surface area of water was used to form a lens, no real gains could be had. Am I wrong?
I basically am going with the majority here. I believe running water over the components to cool them and use the water for household hot water. I would say experiment with running it over/under/both and combining that with the use of heat sinks.
April 30th, 2010 at 4:54 am
Hello Dan,
First, great videos! I love what you are doing. I came across a video of yours today and have been watching them basically non-stop since. I have read all the comments here and I have a few questions that I do not believe have been answered. I hope I can start a discussion about some of these here.
1. Is there an optimal temp for the PV Cells?
2. Accounting for the cost of the lens vs. cost of pv cells, and the % output increase; is it efficient to use the lens to increase power?…
April 30th, 2010 at 5:36 am
There is a high efficiency solar panel made to this use, to concentrated a lot of solar light into a small panel. It have a cooling system that removes heat from the panel and warms water.
October 2nd, 2010 at 7:54 am
The electricity generated by the solar panels is converted from DC to 240 v. AC by an inverter and connected to
your consumer unit.The electricity flows to wherever it is needed in your household. When there is more
electricity being generated than is needed,