Return to the archive index

Re: Commercial wearable cooling

One note,  peltier junction cooling systems work great. but the down side..
it draws alot of power to run the thing.
Anyone expieriment with these things in a Personal computing environment?

-----Original Message-----
From: R. Paul McCarty <>
To: Roland Orre <>
Cc:  <>
Date: Monday, April 27, 1998 10:01 AM
Subject: Re: Commercial wearable

>Roland Orre wrote:
>>
>> "R. Paul McCarty" <> wrote:
>> ...
>> >> http://www.dwave.net/~fwpc/
>> > This looks strikingly like the via wearable, I wonder if this is the
form
>> > factor all commercial wearables are going to take.  Not a bad form
factor,
>> > but its a difficult package to try to create with a homebuilt wearable.
>>
>> I guess that it is not the best package for serious permanent usage
either.
>> To be able to wear the computer at least 15-20 hours per day it should
fit
>> comfortable and not be an obstacle. A belt like the VIA computer and some
>> other may be that. For a reasonable long time, however, there will be a
lot
>> of people that will only use their wearable in their job, but not as
their
>> ubiquitous sensory and brain extension, in the same way as there are a
lot
>> of people today that have chosen to only use computers at their job and
not
>> use them at home. For those people I guess that the belt-version, like
VIA
>> will be much used.
>>
>> For us others, were the wearable will be/is a more or less integrated
part
>> of us, like glasses, watch, socks etc, we need something more
comfortable.
>> For my own I will make a westcoat version were the weight and size of
>> batteries and and all the hardware will be rather well distributed on
>> all sides of the body.
>>
>> I have one problem though. Cooling! I intend to go for the P54-133 CardPC
>> but that little thing dissipates some heat and is specified to use a fan,
>> but I don't like fans. All my computers except my lap make a lot of noise

>> due to the fans, which may be silent in the beginning but soon start to
>> rise their noise, often after just a couple of days usage.
>> I don't want any noise from my wearable!
>>
>> Has anyone any experience with some passive soft cooling material that
>> could, e.g. be spread out over the westcoat?
>
>I think that's the real trick.  With cleaver heat sinking you can just
>cool off your wearable by convection.  One advantage of a wearable over
>desktop PCs is that it is moving around and can cool off without a fan,
>but obviously there are limits to how many aluminum fans and plates you
>can wear.
>
>> Has anyone any experience with liquid cooling for wearables?
>
>I don't think liquid cooling would work, here.  Alternatively, perhaps
>an air pocket in a piece of clothing could be used to pump air in and
>out of a wearable computer by moving around.  Don't laugh, but remember
>the suits used in Dune to filter water from perspiration? something
>similar could easilly convert mechanical movement into air flow over
>your wearable. Of course this introduces the problem that if you sit
>still too long you may overheat your wearable if no air movement is
>occuring.. unless the air movement was generated from breathing.. say a
>surgical rubber tube wrapped around your chest that as your breathed
>pumped air around your wearable.
>
>okay, enough thinking out loud for one message. :)
>
>-Paul
>
>
>--
>R. Paul McCarty / DARS Coordinator /  / x52059
>317 Lattimore Hall, University of Rochester, Rochester, NY 14627
>Computers don't make mistakes;what they do,they do on purpose.-Dale/KOTH
>

From Wear-Hard Mailing list Archive (WH)
Maintained by R. Paul McCarty

Archive created with babymail