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Re[2]: thermostat

To: mdporter@rt66.com (Return requested), npenney@erols.com (Return requested)
Subject: Re[2]: thermostat
From: Peter Mchugh <Peter.Mchugh@faa.dot.gov>
Date: 02 Jul 1997 11:25:02 -0400
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     au contrare, mes amie!!! (forgive the spelling, but get the point)!
     
     The whole issue of flow, heat transfer and mechanics is far too fluid 
     for me (forgive the pun)...but the list has already correctly pointed 
     out that there is a point beyond which increasing rate of flow has a 
     negative effect on heat transfer...and therefore cooling...making the 
     comments below (forgive the bluntness) wrong!
     
     PMcQ 


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Subject: Re: thermostat
Author:  npenney@erols.com at Internet
Date:    7/2/97 8:02 AM


>In a word, don't do it. Even when fully open, the thermostat provides 
>some restriction to flow--this is necessary to allow coolant 
>circulating through the radiator enough time to dissipate heat. Without 
>the thermostat, coolant may pass through the radiator too quickly for 
>adequate heat exchange.
     
I shant flagilate you on this, as others already have. <g>
     
Think of this, in the stinking hot summer days, do you put cardboard in 
front of the radiator to prevent the air from flowing through the 
radiator too fast and causing overheating?  No, of course not.  You want 
as much air through the radiator as possible, so that it can transfer as 
much of the heat as possible.
     
Air is a fluid, water is a fluid.  You want them both moving as quickly 
as possible.  In fact, if you can move them rapidly enough, you can 
reduce the size of your radiator.  Get it going fast enough, and you 
theoretically could use a radiator the size of a postage stamp.

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