User-Agent: Microsoft-Entourage/10.1.4.030702.0
Date: Thu, 08 Jan 2004 17:00:50 -0500
Subject: Re: [FlyRotary] Cooling
From: Bulent Aliev <atlasyts@bellsouth.net>
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Message-ID: <BC233D42.85EE%atlasyts@bellsouth.net>
In-Reply-To: <list-2923277@logan.com>
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On 1/8/04 12:15 PM, "Michael Joyce" <MikeJ@B9Creations.com> wrote:

> Another newbie question.
> After reading Paul Lamar's cooling text:
> http://home.earthlink.net/~rotaryeng/how-to-cool12.txt I was left
> wondering if water coolant could be replaced by a liquid with a higher
> boiling point (such as oil).  That combined with running the coolant at
> a constant higher temp might lead to an increase in cooling efficiency
> since the difference between the external air and the coolant could be
> increased.  Is there a danger letting the temps of the rotor housings
> operate at a higher temp as long as we are below the melting point by a
> safe margin(say 350 vs the water cooled 200-250)?
> Ignorance is bliss!  :-)
> 
> MikeJ
> 
> 
Mike oil has very poor heat carrying properties. Nothing is better than
water. You are not the first one to come up with the idea :)

Bulent Aliev
Ft Lauderdale, FL  
954 557-1019
954 784-5519 Fax
bulent@enginegearonline.com
http://www.enginegearonline.com