h a l f b a k e r y
The leaning tower of Piezo
idea:
add, search, annotate, link, view, overview, recent, by name, best, random
meta:
news, help, about, links, report a problem
account:
Browse anonymously,
or get an account
and write.
or Create a new account.
|
|
| Please log in.
If you're not logged in,
you can see what this page
looks like, but you will
not be able to add anything.
| |
Well, thanks for the interesting link. The AVTO effect is something new to me. I do hope they are successful, as this would certainly revolutionise many systems. However, I couldn't see any actual experimental results anywhere, which is a pity. |
|
| |
er, are you saying that you are the originator of "powerchips"'s technology, and that their product is your IP and is halfbaked? |
|
| |
btw, I would prefer not to have heat "extracted" from my head. It loses enough already. |
|
| |
those powerchip guys have been around forever. i remember getting all worked up over that technolgy last century, and am still waiting to see it. |
|
| |
they claim 70-80% of carnot efficiency, which when applied to the temperature differential between your head and the air would yield about 27 milliwatts according to their 'calculator'. |
|
| |
this would barely run an LED, assuming the voltage didn't have to be stepped up/down, and the heat exchangers were perfect. |
|
| |
this may not be the perfect solution, but i'm sure we'll see an innovation one day that could remove 20 watts of thermal energy from our heads and covert it directly into electricity. |
|
| |
20W seems a bit much. I don't think we give off that much energy. Can anyone do a calculation in the back of his or her head? We'll supply the heat sink. |
|
| |
20W is not far off, as a consumption figure. The entire human body runs on about 80-120W. Recall that a horsepower is about 746W. (Not that actual horses can deliver this power, but it's the right order of magnitude.) |
|
| |
One can work backwards from a typical caloric intake (say 2500 kcal/day.) 1 kcal = 4000J, so in a day one consumes about 10MJ. Given (3600sec/hr x 24hrs = 8.64x 10^4 sec/day), 10MJ/8.64x 10^4sec = approx. 116 W. |
|
| |
But as [TIB] says, capturing any significant portion of this power is another matter, and depends on surface area and temperature differential. |
|
| |
should have called it: "20 Whatts?"
featuring 20 simultaneous questions -
the
more you think about them, the more
energy you create. |
|
| |
The Powerchips site looks like another batch of hopeful delusionals. But even if they are the bee's knees, cat's meow and next big thing, there is no invention in this post. [-] |
|
| |
After meeting with the CTD of PowerChips, I can say this is real! |
|
| |
//I can say this is real// So, as [Lurch]
pointed out, your idea is a technology to
extract electrical energy from human body
heat, by extrapolating from a known
technology which extracts electrical energy
from human body heat? Surely that is
polation rather extrapolation? |
|
| |