Re: Fuel system WAS: Re: [DMCForum] So

["Andrei Cular" <acular@xxxxxxxxxxxxxxx>]

Yes the TEC uses Peltier junctions to create the temp difference.  The I
have been playing with is rated at 70W or about 170BTU.  I was getting ice
running of a 2.5A 12vdc power supply, but it is rated for 8A @16v.  At 12v
6A and with a good heat sink it will produce a 70deg C temperature
differential.

So I guess to answer your question yes to get the full potential out of
the
system you need lots of current.  However to get a noticeable temp
difference you can hook it up to a AA battery.

If you wanted to get really creative when the engine is running it could
work as a cooler.  But when you turn the engine off it can work in reverse
and act as a battery charger...  One of my senior projects was to build a
robot that ran off burning oak leaves in a gutter, however the EE's were
never able to make an TEG (Thermal Electric Generator) that was the right
size and efficient enough.


Like Jim mentioned you could run a conventional cooler but with the
mechanical injection you need to worry about adding too much back
pressure.

Andrei


----- Original Message ----- 
From: "Walter Coe" <Whalt@xxxxxxx>
To: <DMCForum@xxxxxxxxxxxxxxx>
Sent: Wednesday, December 03, 2003 2:21 PM
Subject: Re: Fuel system WAS: Re: [DMCForum] So


Andrei, when you say "Thermo Electric Cooler" are you
referring to one of those Pilcher(sp?) effect heat sink
doo-hickeys?  I hear those take a lot of current to create a
temperature gradient.

While at the Daytona car show, I saw a nice aluminum
(apparently extruded) tranny fluid cooler.  It looked like
it would be great for fuel, too.

Walt



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