Brine (salt water) will freeze at a lower temp than plain water thus the 'cold'
water is colder than 32F and when either piped or exposed to a fan, it's colder
than normal water would be in liquid state. Ice in a brine tank also melts
more slowly. (today we use chemicals to lower freezing points such as glycol
for radiators)Brine tanks common in ice reefers - one Q hwt passenger car still
was using ice for A/C @ BN time; this was covered in an original CB&Q H.S.
publication. Am on the road so cannot reference at this time.
Gerald
To: CBQ@yahoogroups.com
From: ku0a@mchsi.com
Date: Sat, 2 Apr 2011 14:37:50 -0500
Subject: RE: [CBQ] Re: Brine Tank Question
Jerry et al.,
As I understand the function of the brine tanks, they were by the A/C system
during station stops in hot climates (like Arizona) when the cars were
stopped, hence the mechanical drive couldn't be used. Exactly how the brine
solution provided cooling remains obscure to me. Maybe one of our A/C
professionals could enlighten us all.
Nelson
-----Original Message-----
From: CBQ@yahoogroups.com [mailto:CBQ@yahoogroups.com] On Behalf Of
sartherdj@aol.com
Sent: Saturday, April 02, 2011 1:53 PM
To: CBQ@yahoogroups.com
Subject: Re: [CBQ] Re: Brine Tank Question
Jerry,
Thanks for the more detailed analysis of the information found in the
Pullman Car Project spreadsheet. It's amazing all the detail present on
those
sheets when one learns how to use the key to the abbreviations. So, yes
indeed both cars that Nelson is interested in, "New Omaha" and "New
Capitol",
both had Pullman Mechanical AC systems that did not have brine tanks. Now
all I need to learn is the function of a brine tank in an AC system.
Later, Dave S. Tucson, AZ
[Non-text portions of this message have been removed]
------------------------------------
Yahoo! Groups Links
[Non-text portions of this message have been removed]
------------------------------------
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/CBQ/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/CBQ/join
(Yahoo! ID required)
<*> To change settings via email:
CBQ-digest@yahoogroups.com
CBQ-fullfeatured@yahoogroups.com
<*> To unsubscribe from this group, send an email to:
CBQ-unsubscribe@yahoogroups.com
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/
|