[Amps] Getting rid of blower noise - an alternate cooling schemeusing the...

[TexasRF at aol.com]

Adding One part oxygen to two parts Hydrogen seems to stabilize both and  
makes a wonderful cooling fluid.
 
73,
Gerald K5GW
 
 
In a message dated 2/22/2007 12:39:53 P.M. Central Standard Time,  
rbonner at qro.com writes:

Yes a  lot of things are perfectly SAFE in this world when they are left  by
themselves.  Just add an Oxidizer to the reactant and things go  totally bad.

Stable Entity: Hydrogen - Oxidizer: Air (21% O2)   Hindenberg fire
Stable Entity: Velcro -   Oxidizer: O2   Apollo 1 fire

Kinda funny, ANYTHING including steel will burn in  presence of O2 but oxygen
is a non-flam gas. 

Hydrogen by itself is  safe but get ANY OXIDIZER anywhere near it and you are
sending missiles  into outer space.

Stable Entity: MAN - Oxidizer: Woman   The  world is not safe.

OVER.


-----Original Message-----
From:  amps-bounces at contesting.com [mailto:amps-bounces at contesting.com] On
Behalf  Of David G4FTC
Sent: Thursday, February 22, 2007 12:24 PM
To:  amps at contesting.com
Subject: Re: [Amps] Getting rid of blower noise - an  alternate cooling
schemeusing the phase transition of liquid carbon  dioxide




>"Harold  Mandel" wrote

>David is  entirely correct!
>
>Many of the nuke plants I've worked in use  liquid hydrogen on the
>main dynamo. Often these are turning at around  12,000RPM.
>
>Well, men, get the Lithium Hydride out and start  your condensing pumps.
>A couple of fifty-gallon drums and some tap  water will boil up some
>great volumes of H2. All you need do then is to  liquefy it with a good
>cryostat pump.
>
>Watch out,  Hindenburg, hydrogen-cooled amps coming through!
>
>

I had  a couple of off reflector emails asking me Hydrogen cooling was a 
rather  early Aprils Fool Joke  no its quite serious - for those interested

a  Google search on Hydrogen Cooling will yield many references - its  
benefits as a coolant in a power station environment are really quite  
amazing.

To the uninitiated, the use of hydrogen sounds a little  alarming when you 
consider that the type of alternators that typically use  this cooling 
technique could be producing something like 33 kV at 15,000A.  But remember 
pure Hydrogen is safe, the presence of another gas such as  oxygen is needed 
for ignition.

AFAIK the hydrogen used to cool  alternators is in a gaseous state; Im not 
aware of vapour phase cooling  being used. Ive only seen it supplied as a 
compressed gas from one of the  industrial gas suppliers and never seen it 
generated on-site, although I  suppose theres no reason why it couldnt be.

Lithium Hydride is a new  one on me. Personally I would prefer to use 
something like Dihydrogen  Monoxide http://www.dhmo.org

BTW Im also aware of liquid Sodium being  used as a heat transfer medium!

Take Care

David  G4FTC

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