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Apple to use power-generating heatsinks?

updated 05:25 pm EST, Tue November 21, 2006

Power-generating heatsinks


Apple is currently in talks with Eneco -- an engineering firm -- to use a new Thermal Chip which is said to convert heat into electricity, bouncing the free electrons of hot metal against cold metal to capture the resulting energy. The chip is alternately able to dramatically cool hardware by receiving direct electricity, and produces as much as five times the energy density of a lithium-ion battery, according to Eneco. Both companies have yet to settle on a contract and are not expected to ship products in the immediate future, according to ITWeek. Apple has often struggled in the past with thermal issues in its systems, and the new technology could effectively solve the company's cooling difficulties by absorbing most of the heat generated by processors and converting it into a source that would reduce or even eliminate the need for a high-capacity battery in laptops, according to Electronista.


by MacNN Staff

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Comments

  1. bobolicious

    Fresh-Faced Recruit

    Joined: Aug 2002

    0

    Finally!

    The G5 PowerBook! ;-)

  1. darkelf

    Fresh-Faced Recruit

    Joined: Nov 2003

    0

    Re: entropy

    yes, thank you, but we're not currently accepting applications for the position of "law of thermodynamics". but we'll keep your resume on file for 90 days, just in case.

  1. Gordio

    Junior Member

    Joined: Mar 2006

    0

    2nd law thermo

    yes. How come this doesn't defy the second law of thermodynamics? Heat is entropic garbage. It's the ultimate fate of all energy, and the only way you can revert heat into useful energy is if you produce even more heat in the process.

  1. f.duane

    Fresh-Faced Recruit

    Joined: Nov 2006

    0

    whoa?

    whoa? "he only way you can revert heat into useful energy is if you produce even more heat in the process" ??? that doesn't make sense, my dear. of course you can convert heat into energy without generating more heat. the point of confusion here is to what degree of efficiency this can happen. apple will still need a battery to power the laptop, but this system (the hybrid of computers) would be far more energy efficient overall. looking forward to this baby...

  1. moldyapples

    Fresh-Faced Recruit

    Joined: Jul 2006

    0

    like on a hybrid car's...

    ...regenerative braking where energy that would otherwise be lost is recaptured to charge the battery. Can't power the whole thng, just makes it a bit more efficient.

  1. alittle158

    Fresh-Faced Recruit

    Joined: Apr 2000

    0

    re: like on a hybrid...

    Except in Hybrid cars, that energy being converted is momentum, not heat...notebooks don't move nearly that fast.

    If they can get this to be efficient, I'd be all over it...though I'd miss the heated keyboard and lap warming features of my MBP :-)

  1. MacScientist

    Junior Member

    Joined: Feb 2000

    0

    re: entropy

    Other reports make it clear that Apple and Eneco are not in talks to use this new technology. Rather Eneco is trying to convince Apple and Dell that its "new technology" does not violate the Second Law of Thermodynamics.

    Assuming that this process is limited by the Carnot efficiency, its best use would be to recover the heat generated by the processor with with heat recovery unit replacing the fan. The maximum theoretical efficiency would be given by eff= (Th -Tc)/Th where Th and Tc are the absolute temperatures of the hot processor and cool room, respectively. With the temperatures involved, I don't see an efficiency large enough to payoff the added cost of the unit.

  1. nickbirch

    Fresh-Faced Recruit

    Joined: Oct 2005

    0

    Peltier device?

    Isn't this just a Pletier device? http://en.wikipedia.org/wiki/Peltier-Seebeck_effect. "observed in 1834" so hard luck on the patents.

  1. JEB

    Junior Member

    Joined: May 2001

    0

    poorly worded?

    "...Apple has often struggled in the past with thermal issues in its systems..."

    Makes it sound as if Macs are total c*** when you throw out a statement like this; don't all laptop makers . . . all struggle--?

  1. jpellino

    Fresh-Faced Recruit

    Joined: Oct 1999

    0

    thermocouple?

    seems like with one junction (or manifold smaller ones) at the heat sink (or maybe making the sink a junction or collection of them) and the other on (or as) the outside of the case - you could generate something.

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