h a l f b a k e r y
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Phones of today are going to be increasingly more powerful in the
future as their powers increase. Tomorrow's phones, even today,
pretty hot when they're doing something intensive and
This idea is to use a heat exchange arrangement to wick heat
overheating phone, and dump some of that energy back
into the battery, and the rest of the side-effect is to make the
of the phone feel cooler.
Even a tiny bit of energy leeching to forward to the battery under
hot conditions is better than not doing so, which makes it an
advantage. The disadvantage is that it will make an otherwise hot
and toasting phone feel cooler to the hand or in the pocket.
is one of those days in that week of the year that has somewhat
I think the obvious thing to jump to is peltier heat pumps.
But perhaps it might be possible to design a heat flow waveguide
that can naturally wick away heat energy to concentrate it onto a
peltier device to use in the seebeck effect mode. In such cases,
peltier device would generate energy from the thermal difference
rather than actively cooling, but if the waveguide could wick the
heat away to the seebeck arrangement, supplying power to the
battery, there may well be enough of a heat reduction overall to
make a difference.
||Surely a better solution would be for the phone to
siphon out liquid from (one of) your (mugs of)
coffee, circulate it through conduits within the
phone and pump it back into your coffee mug. This
would cool the phone circuitry to the temperature of
your coffee or, conversely, maintain the temperature
of your coffee to that of your phone's circuitry.
||Well, I was hoping not to actually require the expenditure
of energy outside of the system to propel it, and hoping to
use thermal waveguide technology as if it is some kind of
microfluidic acoustic magic that defies gravity and other
||I can definitely see this one not working.
||A Peltier element is a dreadful conductor unless energized.
Even then, they're not great at moving heat, and they use
energy to do it. That energy will create more heat. A quick
glance at the data sheets suggests that Peltier elements
can't even dissipate the heat they generate without hefty
heatsinks. The power drawn also creates more heat than
they can effectively move.
||Also, heat is what kills LiPo batteries. People who use really
pricey ones, keep them in the freezer.
||What's obviously needed is a kind of battery that actually
not only likes a lot of heat, but relishes it. One that could
convert heat from a graphics multiprocessor array into
some more stored power. I know it sounds a bit like
perpetual motion, but if we don't call it that, then it isn't.
||Hmmm. I favor lighter weight, more convenient phones. That said, for a while phones had holsters. So just imagine a gigantic brushed aluminum heat sink holster that looks kind of like _\V/_, larger that an impressive belt buckle that the bare metal of Ian's phone slides into for between call cooling.
||[marked-for-deletion] for bad science. I thought you
knew basic thermodynamics.