[Digestion] Digestion Digest, Vol 5, Issue 19

[stan simon]

I am not sure what amount of cooling you need, are you trying to cool the 
milk tank or the whole barn?

An automotive compressor and condensor will give you about 5 tons of 
cooling.  Trane, Carrier or York Absorption chillers start at about 100 
tons.  That smallest size would probably be the least economical.

Yazaki advertised a hot water  absorption chiller, not sure what size range 
they have.  There may be others.
----- Original Message ----- 
From: <digestion-request at listserv.repp.org>
To: <digestion at listserv.repp.org>
Sent: Wednesday, November 22, 2006 12:00 PM
Subject: Digestion Digest, Vol 5, Issue 19


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>   1. AC compressor on engine for chilling (Zietsman, Rex)
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> ----------------------------------------------------------------------
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> Message: 1
> Date: Wed, 22 Nov 2006 15:26:41 +0200
> From: "Zietsman, Rex" <Rex at Process.co.za>
> Subject: [Digestion] AC compressor on engine for chilling
> To: <digestion at listserv.repp.org>
> Message-ID:
> <15158807F724CB4593BF508C151108CC4B304A at scalpel.imsgroup.local>
> Content-Type: text/plain; charset="us-ascii"
>
> Stan,
> Have you tried buying an absorption chiller? We have been quoted $100k
> for a 400kW chiller by York. These machines, while conceptually a good
> idea, are simply off the cost scale. The next best thing is to use a
> fridge design. That is a lot more difficult to install and make to work
> than bolting an AC compressor onto a motor that may already have the
> bracket for it and the pulley to provide a V-belt drive. If you have a
> neat way of going the absorption chiller route, I am all for it - gimme,
> gimme!
>
> Gentlemen,
> Regarding the water based CO2 scrubbing, wouldn't this give you methane
> that was saturated with water vapor?  I'm not sure what this would do in
> an engine.  Maybe cause icing in your carburetor?
> The beauty of absorption cooling is that it is driven primarily by low
> quality (thermal) energy rather than expensive shaft power or
> electricity. Hence you could make electricity with your methane and then
> use the waste engine jacket and exhaust pipe heat to create cooling.
> Have your cake and eat it too.
> Stan L Simon, P.E.
>
>
>
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> End of Digestion Digest, Vol 5, Issue 19
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