Free Energy | searching for free energy and discussing free energy
Solar energy => solar systems homemade and commercial => Topic started by: infringer on August 25, 2008, 06:42:44 AM
-
I was a subscriber of satellite tv for years over the years I have switched back and forth from DTV and Dish currently sticking with dish seeing as I have an old satellite dish I was wodering if I took and sanded one with fine sand paper then painted it solid with black enamel paint then once that layer dried coated the dish with chrome paint if it would work in the same manner as a parabolic dish aka solar death ray type device...
This would be one great way to harness the suns power rather cheaply...
Anyone else attempt this? As I hear this is basically how they make mirrors... Not sure though just thought someone might know...
-infringer-
-
Inf Yes for solar collection at the focal point to a water plenum, this is what they do But you have to track the sun [a pain] Chet
-
Some DIY stores sell sticky backed plastic with a chrome surface, use narrow strips from certre to circumference of dish. DANGER do not look into the dish in sunny conditions . These dishes will set fire to a piece of thick wood in two minutes.
-
Have a look at my Parabol ThermoSolar Prototype.
Building one right now, using Mylar foil as reflective material......see below
Automatic Solar Tracking is also a must for maximum energy output for this parabol almost finished, will keep you informed.
-
Have a look at my Parabol ThermoSolar Prototype.
Building one right now, using Mylar foil as reflective material......see below
Automatic Solar Tracking is also a must for maximum energy output for this parabol almost finished, will keep you informed.
Welcome Kampen
Your Setup looks qite professional.
How many Power you expect?
Are you the same Kampen as Kampen 72 with his Heat Pump?
helmut
-
Balls thats awfuly nice lookin...
Yes tracking was mentioned as an issue indeed which I have also given thought and technically you could have it work off of a clock type device mechanical for prototype purposes. Wind up every morning or something...
Shame is that this one little thing adds too much complexity for the average american to build I have a bit more interesting idea but kinda saving it untill I get a good sterling engine design or something I can build that will be sturdy and generate power.
-
INFO: Parabol ThermoSolar Prototype Construction/Development
Techn. Specs:
Parabol 6 segment
Mylar ALufoil as reflector
Parabol diam. 1500mm
Focus 700mm
Estimated Thermal Power 800-1000 Watt/h
Last news:
At the moment I am working on the thermal heat-exchanger, will keep you informed.
-
Kampen That dish is so beautiful I don't know how you leave it alone at night !! Thankyou for sharing looking foward to your posts
Chet PS and welcome to the Forum
-
A few years ago I was making solar devices out of trash.I was cutting 2 liter bottles in half and rubber gluing foil on them .Foil reflects 60% of the sun's energy.I put three of them together in an old computer case.And had to turn them to face the sun.But after a few minutes of careful aiming Anything out in the center would really get hot.Triffid
-
I agree with ramjet,that dish is beautiful!One time back in the 1980's a friend and I cut a 55 gallon metal drum in half and glued foil into it.It did generate a lot of heat.We didn't do anything else with it.When I was making solar devices out of trash I also cut the round oatmeal boxes in half and lineing them with foil.Triffid
-
Infringer , if you like dish network you should check out the viewsat pro reciever. It has dvr abilities if you add a usb hard drive. They cost ~189.00 us. The viewsat has autoroll encryption. after you buy one you can download the encryption keys and you get all of the dish network and Bell express view channels. Best of all it is perfectly legal, as it is up to the broadcaster to secure thier signal if transmitting on public airwaves in the U.S. dish does ocaisionally knock it offline by changing thier algorythms but the hacker community has new keys within around 12 hours.
food for thought.
-
Below is a link for redrok engineering. This fellow makes some very nice, low cost components for building solar tracking systems.
He even has his schematics on his web page, if one would want to deviate from his design. No need to though, his price is right and the package small. the trackers can be tailored to drive most any motor.
He did some cool things with the small sattellite dish movers hooked up to his tracker, and can swing 16 square ft. with off the shelf components.
Worth checking out.
Zatheros7
tracker
http://www.redrok.com/led3xassm.htm
low cost dish mover
http://www.sadoun.com/Sat/Order/Motors/HH-Motors.htm
-
I made a parabolic reflector from a small 24-inch satellite dish with a number of compact disks as the reflective surfaces, attached to the dish with double-sided carpet tape. Crude but effective. The dish focused distant sources to a softball-sized hot zone. When pointing it at the sun, the temperature at the focus was easily capable of igniting paper instantly.
-
Thanks Zath Ero,I enjoyed the satellite info.I had a setup to get FTA but was told recently I had to update my gear.I think you told me everything I need to update.Triffid
-
While I'm here I want to tell you guys you can reflect up to 10X the light on a solar panel to get electricity(up to 10X the volts and watts).So a 12 volt solar panel becomes 120volts.Etc.You get the picture.Triffid
-
Dear moderator,
I am unabel to access the HOME page of http://www.overunity.com/index.php
Database Error
Please try again. If you come back to this error screen, report the error to an administrator.
ERROR REPORT see below:
free energy will give you free-energy and
free energy and
free energy und Freie Energie for free
Templates: 4: index (azure_11final_tp), TPortalBlocks (default), TPortal (default), Errors (default).
Sub templates: 5: init, main_above, main, fatal_error, main_below.
Language files: 3: index.english (default), Modifications.english (default), TPortal.english (default).
Files included: 13 - 1125KB. (show./index.php, ./page.restrictor.php, ./counter/counter.php, ./Settings.php, ./Sources/QueryString.php, ./Sources/Subs.php, ./Sources/Errors.php, ./Sources/Load.php, ./Sources/LoadAds.php, ./Sources/Security.php, ./Sources/TPortal.php, ./SSI.php, ./Sources/TPmodules.php)
Queries used: 19.
-
Thanks Moderator, DATABASE ERROR is fixed, working now fine.
-
I am still working on my heat-exchanger and auto-tracker.
Hope to finish this month and all parts are within limited budget.
See enclosed picture(s):
Heat-exchanger proto-type specs: diam. 320mm x 30mm, coated with heat-absorbing/resistant paint.
-
See enclosed picture:
Heat-exchanger proto-type specs:
CAD drawing , diam. 320mm x 30mm
-
@ All,
finely here it is, my Solar Heat Exchanger
see picture(s) below:
-
Since there is a BUD (big ugly dish about 4 feet or 1 meter) satellite TV dish in the backyard doing nothing due to burnt out positioning motor and the advent of DTV (which doesn't need to move to access multiple satellites) making it redundant, I've thought about converting it to a solar power device for heating or electrical generation using either solar cell or peizo <sp?> electric (as that could perhaps generate more electricity in winter months due to extreme temperature differential of focused solar on one side and atmospheric cold on the other?).
The first thing to fly into my head about the positioning would be to make electric motor driven coarse screws actuating geared arms shielded from the elements and use that for dish positioning (E/W and up/down) controlled by a clock/calendar/microprocessor with a map of the suns azimuth and position in reference to the longitude and latitude of the dish location.
Using that, sun tracking would be a "set and forget" situation that tracks irregardless of other factors and keep the focus of the sun consistently at optimal positioning 24/7/365.
I'm thinking of using mylar reflective material too, but need to come up with an answer for wind.
A meter diameter circle still makes a pretty good "sail" that could allow strong winds to damage the positioning mechanism.
But I have a few questions I'd like to pose to better help me make a decision on how to implement this.
In the case of using a solar cell:
How much solar IR can a solar cell stand before it burns up?
Are there reflective materials that could pass the IR harmlessly while reflecting the more electrical producing higher wavelengths to the solar cell?
Is there a combination solar/piezo cell being built to anyones knowledge so that all wavelengths could be equally captured and used at the same time by one cell?
Thanks for starting the thread infringer and very nice build kampen!
-
Check out this site for circuits and assemblies to do just what you are wanting to do for solar tracking.
http://www.redrok.com/electron.htm#led3x
EDIT PS. I just seen this was listed in a above post but I can not delete my post.. Sorry for the duplicate information.
-
You may also want to check out this thread about using a Peltier junction array to generate power instead of a solar panel. Possibly cheaper.. I provided links in that thread for mylar film and other things.
http://www.overunity.com/index.php?topic=5536.msg125996#msg125996
-
Kampen Your heat exchanger is beautiful !!! its a shame to cover it up. You have inspired me to build also
@ Hydro Thanks for the links
PS I have read these parabolic dishes can generate 1000 C or more
Chet
-
Peltier junction is an interesting thing should be researched...
As for using solar cells for concentrated solar it is a reqirement to also cool the cell with a coolant of some sort.
Either way it will take little money to make these dishes possible the hardest portion will be keeping the weathering from ruining them and the expense of conversion and energy storage.
Glad to see the dish its really interesting I am interested in seeing the tracking portion when you are finished.
Thank you for taking the time to share with us.
-infringer-
-
Sorry I'm new to solar water heaters... how much hot water can you produce? how long does it last? and how hot does it get? and how much will it cost?
-
I mentioned this earlier but you can focus up to 10x solar on a solar cell without doing much harm to the cell.Just as the cell starts getting hot a gust of wind usually comes along to cool it down.If you must you can always use a 12 volt computer fan and use solar electricity to run it .That could be running as you are generating electricity.Just use air to cool the cells with.So it is with electricity I would think you can double or triple the heat output of a solar hot water heater.Triffid
-
There are solar hot water heaters you can buy for camping(walmart) they hold about 3 gallons and take about 2 hours to heat up for hot water in the sun for a shower somewhere on your camping trip.
If you want one for your roof there are all kinds of books out there.Mother earth has always been good for that kind of stuff.If you don't want to buy any books,check out the local library.Usually the more simple the design the better .Triffid
-
I know glass windows allow ir radiation to pass through (at shorter wavelengths).The ir radiation (once passed through)becomes a longer wavelength and cannot escape again.So the room becomes hotter.I think quartz windows block the ir radiation altogether.But they cost a lot!Triffid
-
@ All,
See below, this is the flow-sheet diagram:
-
I goofed here.I should have said that glass blocks uv radiation and quartz does not.So quartz allows more light energy through it than glass(ie,more wavelengths).Although what I said about ir radiation going through glass was correct.I may not be right about about quartz blocking it(ir radiation).Triffid
-
For those of you wanting pirate satellite TV doing a web search on "satellite rookie" is a good place to start.Some one in this thread earlier mentioned satellite recievers.It is up to the broadcasters to secure their signals.If you happen to have a receiver that can pick them up.You are pretty much ok
unless you sell copies of broadcasts or rebroadcast the programs.Triffid
-
Kampen, if you could make a mirror diffuser(a half coned cylinder lined with mirrors on the inside) at the focal point it would bounce the solar energy to narrower part of the cone. At this point you add a mirrored tube containing magnifying lenses. This would shape the rays into a beam-solar laser. The only real complicated part would be directing it-would need a mirrored sphere with an apeture eye that could open/close and rotate the ball to direct it. Then you could heat or not heat stuff from distances away from the dish. I designed something like this my last time in afghanistan. The system consisted of a 300m aluminum polished dish with all those listed components that operated in a system of 12. This way there would never be a lack of solar power to any one. They could beam energy from one dish to another, from the day side to the dark side from one to one or from all to one for max power. We could grow crops at night by opening the eye all the way or focus it into a narrow beam for either heating up water or blasting stuff into ashes. I'm sure the atmosphere would react in a bad way not to mention burning away cloud cover and messing up weather patterns. But then again it was just an idea of 24 hour solar power.
-
@ All,
Looking/searching for a small circulating pump, mustbe heat-resistant because I intend to circulate oil in my Parabolic Solar Heat Absorber. Any advise/help is welcome.
Thanks in advance.
-
The parabolic dish is so simple. Such an eloquent way to make power.
This guy has some experiences with making parabolic dishes to use as power sources:
http://www.youtube.com/user/GREENPOWERSCIENCE
A parabolic dish power source can be compact too. A 24" dish is capable of making a few thousand watts of electricity on the fly.
The problem, of course, is converting that energy into electricity efficiently.
I love the idea of the solid state Peltier device converting power/sunlight from the parabolic dish. But most Peltier devices are inefficient at the moment.
However, this company claims to have an answer to higher efficiencies, 70-80% of Carnot efficiency. Very useful to the parabolic dish setup.
http://www.powerchips.gi/technology/pcalc.shtml
There must be a way to make these "solid state thermal electric generators" cheap and plentyful.
I envision a 36" parabolic dish on the roof of my RV, tracking the sun as I camp. Providing 3500 Watts of power on the fly, and charging my 8 deep cycle batteries.
Any inputs? Any homebrew ideas?
Here are more extremely interesting links:
http://keelynet.wordpress.com/2008/02/12/new-highly-efficient-thermoelectric-generator-invention/
http://www.navysbir.com/n07_1/n071-086.htm
http://www.advanceddiamond.com/products.html
http://www.johnsonems.com/?q=node/2
http://www.azooptics.com/Details.asp?NewsID=41
http://www.peltier-info.com/generators.html
http://www.sitechina.com/thermoelectric/Pspec.html
-
test
-
@ All,
Looking/searching for a small circulating pump, mustbe heat-resistant because I intend to circulate oil in my Parabolic Solar Heat Absorber. Any advise/help is welcome.
Thanks in advance.
Hi Kampen.
You'll get your greatest efficiency by building an efficient wave guide, one that traps the heat and radiation the longest within the wave guide it self, Aerogel has a 99.98 efficiency at trapping heat and bouncing it around so you may want to look into that for making a wave guide block, one side of the Aerogel can be mirrored to help trap other frequencies of radiation as well.
If you need some engineering advice on building a Radiation Wave Guide Trap just ask and I will see about looking into parts for you to assemble.
I see that you are using a oil based medium to conduct heat? there are better Heat Moderators that could increase the efficiency even higher.
I could show you how to make a Ultra high efficient Heat trap but the only draw back is the very expensive materials needed, they are not cheap at today's rates of scientific instruments.
Jerry ;)
-
The perfect energy production system
1. uses no moving parts.
2. converts all band gap energies to usable energy.
3. made of ultra light material.
4. made ultra transparent for optimal radiation transmission.
5. utilizes Radiation traps or internal mirror wave guiding to reuse trapped radiation within the confines of the solar photovoltaic optical cell. (recycles its own radiation near 100%).
these are just 5 of the attributes to a ultra efficient power production system. no motors or engines could keep up with such a system.
on a secondary thought besides the one above, it may be possible to use a magnetically confined ultra positive ion plasma to attract negative Electrons to a capacitive surface trap that conducts the Electrons away from the +++ Plasma attractive source, this is just a thought and nothing more.
Jerry ;)
-
Solar parabolic dish / Heating diagram:
-
Installation Description:
-
Components:
-
Solar Parabolic Parts/Components:
-
nice dish. where did you get the actuation system from
-
It's a Dual-Axis SatDish Motor (36VDC) from JAEGER.