[AR] Re: Peltier specifications

  • From: "Anthony Cesaroni" <acesaroni@xxxxxxxxxxx>
  • To: <arocket@xxxxxxxxxxxxx>
  • Date: Mon, 3 Aug 2015 17:15:30 -0400

They are popular on nuclear powered submarines where doing something with
all of the excess power you have available can be challenging at times. :-)

Anthony J. Cesaroni
President/CEO
Cesaroni Technology/Cesaroni Aerospace
http://www.cesaronitech.com/
(941) 360-3100 x101 Sarasota
(905) 887-2370 x222 Toronto

-----Original Message-----
From: arocket-bounce@xxxxxxxxxxxxx [mailto:arocket-bounce@xxxxxxxxxxxxx] On
Behalf Of Edward Wright
Sent: Monday, August 03, 2015 4:56 PM
To: arocket@xxxxxxxxxxxxx
Subject: [AR] Re: Peltier specifications

No one said cryocoolers are $10. The statement said cryocoolers are $300,
which is considerably more than Peltier coolers.

Sent from my iPad

On Aug 3, 2015, at 3:27 PM, Ben Brockert <wikkit@xxxxxxxxx> wrote:

Not all peltiers are cryocoolers. Please post a $10 cryocooler.

On Mon, Aug 3, 2015 at 4:23 PM, Edward Wright <edward.v.wright@xxxxxxxxx>
wrote:
Which has nothing to do with the statement I was responding to -- that
cryocoolers are "available at more down-to-earth prices." $300 is not less
than $10.


On Aug 3, 2015, at 2:49 PM, Norman Yarvin <yarvin@xxxxxxxxxxxx> wrote:

In this case the original question was about "alternative methods to
chill (or heat) oxidizer", which would involve serious amounts of
heat, making efficiency important.

On Mon, Aug 03, 2015 at 01:17:06PM -0600, qbert@xxxxxxxxxxxxxxx wrote:
Actually they are used on several satellites, CanX-2, and others,
for there simplicity and small size. Yes they are inefficient and
can be a power hog but in the right circumstances they have a place.

Robert


At 12:32 PM 8/3/2015, you wrote:
Right, but as Anthony said, they're "a waste of perfectly good
energy". (The efficiency is atrocious.)

On Mon, Aug 03, 2015 at 01:04:36PM -0500, Edward Wright wrote:
Peltier coolers can be found for under $10. They're used to cool
CPUs in some microcomputers.

Sent from my iPad

On Aug 3, 2015, at 9:01 AM, Norman Yarvin <yarvin@xxxxxxxxxxxx>
wrote:

On Mon, Aug 03, 2015 at 08:10:31AM -0400, Anthony Cesaroni wrote:
A waste of perfectly good energy. Google "stirling coolers" or
"stirling cryogenic coolers". About as efficient as you can get
in a small package with insane MTBF. There's a few of them in
orbit.

They're also used in cell phone towers, so can be had at more
down-to-earth prices.

"Such RF filters with their integrated cryocoolers can be
found on eBay for under $300."
-- Ben Krasnow, at
http://benkrasnow.blogspot.com/2008/08/diy-liquid-nitrogen-generat
or.html






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