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needs one of these

SatDishA04AL.JPG
 
^ no, you need one of these ones :p

bengurion1-300x225.jpg


Ben-Gurion NSEC, Sde Boker, Israel, 400 square meters of parabolic mirror, concentration factor 10000/1 ..... with one of these mirrors and a sunny day, you don't melt stones, you will VAPORIZE them :p :D
 
^^Cool stuff right there.

So.. it looks like mirrors do a pretty good job, and paint is an untested method, but I don't want to lay down 2,000 mirrors. That's something called "work". Is it worth it? Lol
 
hey, and what about this? :crackup:
death-star-1.jpg


now he has a high power concentrated source of light... I'm thinking about some colimation optics :eg:
 
Reminds me of mythbusters. They have tried twice now and have not gotten this to work. Granted they are trying to get some distance...
 
I like where this thread is going ;)
Question for anyone that knows: Because the sun is so far away the light that reaches us is basically "collimated" right?
So shouldn't it be easy to use some relatively inexpensive optics and throw it down a fiber optic cable to a centralized power plant?
I don't know anything about it so I'm sorry if this is a stupid question ;)
 
I don't see why it wouldn't work. I read something about using natural light in office buildings. It used the basic concept you mentioned, use fiber optics to direct the sunlight into the office areas.

As for generating power, that might work during the day for steam plants. That is if there is enough sunlight. I'm not sure if it would work for solar panels though. I think one of the problems is they can only use a certain amount of energy per square inch from the sun. Concentrating it probably won't help unless they use the solar panels in layers.
 
True enough, yeah, I had meant steam turbines. Even if it was just to supplement the use of natural gas or coal any saving, especially a "clean" energy source would help.
I guess there are problems associated with optics in terms of accumulation of dust and stuff so it might not be worth messing with.
Plus you would have to have a very long fiber optic cable to get a nice night time beam shot eh? :crackup:
 
Well, one of my crazy projects was involving sun and fibers (just for illumination, not for heating / energy), but it ended in nothing ..... i calculated i was needing so much fibers, that i must sell a lung for buy them :p

Anyway, if lightguide fibers become really cheap, you can use them for collect light from, as example, a roof part, and carry it on the ceiling of internal (or few /badly exposed) rooms, saving a lot of energy in time ..... i mean, those rooms or shops where you need to keep lights on also in the day ..... just imagine, instead, to place a collector (a simple glass plate filled with the "in" terminals of the lightguide fibers, as example) on your roof, or any other place well exposed to sun, that is not used for anything other, and pull the fibers til the ceiling of these rooms, placed in a grid, like small lamps ;) ..... for all the time the external light is decent, no more need to turn on the lights :p .....
 
Might work out a touch more expensive than a couple of curly lights though ;)
A few sheets of phylon brighten a shop up pretty quick and not too expensive. One 2'X2' sheet looks about as bright as 3 100W incandescent bulbs. Pretty amazing just how much energy the sun actually puts out.
I have installed a few solar tubes (similar to a skylight) in a house I worked on and they actually do a pretty good job in hallways.
Seemed like the insulation would take a hit with them though. I wrapped 2 layers of fiberglass insulation around each one and taped them up but its a horrible job.
If it hadn't been for a friend I wouldn't have even done the job, stick framed homes are BORING! ^_^
 
@AUTO XX
the light is disperse, but it is so strong that he reaches us. Basically, there is no AIR in the space (there isn't anything there :p) to absorb light/energy, so it reaches us with some strength. If you meant "collimated" and are thinking about "focusing it" in an aixiz module it will not work. :beer:
 
the light is disperse, but it is so strong that he reaches us. Basically, there is no AIR in the space (there isn't anything there ) to absorb light/energy, so it reaches us with some strength. If you meant "collimated" and are thinking about "focusing it" in an aixiz module it will not work.
Click to expand...
I'm not sure I understand what you are saying.
The beams of light that reach us from the sun are all essentially parallel, thus collimated.;

Also, on the topic:
Solar thermal energy - Wikipedia, the free encyclopedia

Two major issues with harnessing the suns energy are:
-inevitably, dirty optics
-tracking the sun precisely over the course of the days and months.

This one is particularly impressive:http://en.wikipedia.org/wiki/Sierra_SunTower


This idea of spreading the suns light around inside the house is very interesting.
 
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I'm just saying what I read on another thread, where someone tried to pump non-linear crystals with sunlight.
 
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