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Sep/0910
Sep/0910
Diy Solar Tubes Evacuated Vacuum Tube Solar Hot Water Boil Water With The Power Of The Sun
Boil water just by placing it in the sun.
http://www.greenpowerscienc…
This is a simple process to make your owns solar evacuated vacuum tubes from any bottle and a $2 vase from Walmart.
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8:28 pm on September 8th, 2009
You gave me some super ideas. thanx!
8:56 pm on September 8th, 2009
6:09 Nice catch, lol.Great videos by the way. You have inspired me to try out a few of your ideas on my own home. Keep them up! Hope to see more.
8:57 pm on September 8th, 2009
Hi Dan, thanks so much for your great videos, I can’t get enough of them. I have seen other videos how solar evacuted tubes work. Could you put a vacuum sealed copper tube into the inner bottle and will it heat up. If so could you use it in cold weather to heat your vehicle while your indoors or have a long enough copper tube, you could attach it to your home like a solar heater. The heated tube would be exposed indoors, the ceiling fans would distribute the heat?? Thanks again, great videos!!!!
9:36 pm on September 8th, 2009
Thank you for the cool comments:-)I think you would need a much larger surface area. I think large sheets of double glass could do it. Consider the coroplast heater with a glass coverwatch?v=SF_mEoFRSAQ
9:40 pm on September 8th, 2009
All of your you tube videos are great, have you ever thought about sending any of these to mother earth news ?
10:02 pm on September 8th, 2009
Also, there has been comment on using hydrogen as this wouldn’t require a serious vacuum. As I understand it, hydrogen, in terms of thermodynamic characteristics, is the substance of choice for use in stirling engines (practical characteristics aside – leakage, reactivity etc). If hydrogen was a heat insulator then I don’t believe a stirling engine could operate using hydrogen.
10:28 pm on September 8th, 2009
This guy is right.  Without a serious vacuum, heat will convect from the core to the exterior. Also, all that epoxy and its surface contact with the core will again provide a great method for heat conduction away from the core. Read the Thermos article on wikipedia for a real understanding of this project.
10:33 pm on September 8th, 2009
sorry, this was supposed to be a comment to purplesan on the next page. He stated that this is unlikely to work any better than the non-half-vacuumed version.
10:34 pm on September 8th, 2009
So old school computers used somthing like this back then?
11:32 pm on September 8th, 2009
Lastly, please don’t use the glass vases at Hobby Lobby. They look very thick, but it’s super thin in the center. Give the vases a pinch to check the thickness. I’d recommend beer bottle thickness which feels like 1/10 inch or 2.5mm. thanks