Re: [CBQ] NW1/NW2 question

["CenturyLink Customer rksmes@q.com [CBQ]" <CBQ@yahoogroups.com>]

Group-  In industrial plants, we had "refrigerated air dryers" located next to the air compressors to make

sure the compressed air was very dry to keep condensed water out of the piping and air powered tools.

I would expect that there are aftercoolers on all diesel engines.

Bob Sorensen

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From: "Jpslhedgpeth@aol.com [CBQ]" <CBQ@yahoogroups.com>
To: CBQ@yahoogroups.com
Sent: Wednesday, February 10, 2016 11:00:23 AM
Subject: Re: [CBQ] NW1/NW2 question

 

I believe that that "radiator like object"...is exactly what you have named it.  IIRC my long ago engineering school courses that thing is called an "after cooler"..When air is compressed its temperature increases..Remember P1 T1 VI =P2T2V2.  The compressed and heated air is passed through the "after cooler" before it's admitted to the main reservoir.  It's especially to get the condensation out of the compressed air to prevent "freeze ups" in the winter time and excess moisture, hence damage in the summer.

Those with more recent Thermodynamics training and explanatory expertise may want to "weigh in" and/or "shoot down" my idea.

Pete

-----Original Message-----
From: 'Micheal Farley' mfarley@midco.net [CBQ] <CBQ@yahoogroups.com>
To: cbq <cbq@yahoogroups.com>
Sent: Wed, Feb 10, 2016 8:04 am
Subject: [CBQ] NW1/NW2 question

 

Everyone,

 

On the NW1’s and early model NW2’s without door louvers, there is a radiator-like object between the frame and the air tanks on both sides of the locomotive. What exactly is this item? Is there a suitable detail part in HO scale for this item?

 

This photo shows the item about as good as any other: http://www.rrpicturearchives.net/showPicture.aspx?id=4280766

 

Also, is the three-pane all-weather window currently available in HO scale? I have two of the Overland’s from 20-30 years ago but need more…

 

Micheal Farley

Bis marck, ND

www.facebook.com/yellowstonedivision

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Posted by: CenturyLink Customer <rksmes@q.com>

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