Return-Path: Received: from [209.228.35.120] (HELO c015.snv.cp.net) by logan.com (CommuniGate Pro SMTP 4.1.8) with SMTP id 2923378 for flyrotary@lancaironline.net; Thu, 08 Jan 2004 13:49:06 -0500 Received: (cpmta 17883 invoked from network); 8 Jan 2004 10:49:02 -0800 Received: from 148.63.203.249 (HELO B9Creations.com) by smtp.b9creations.com (209.228.35.120) with SMTP; 8 Jan 2004 10:49:02 -0800 X-Sent: 8 Jan 2004 18:49:02 GMT Message-ID: <3FFDA616.9050303@B9Creations.com> Date: Thu, 08 Jan 2004 11:48:54 -0700 From: Michael Joyce Reply-To: MikeJ@B9Creations.com Organization: Team B9 User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.4) Gecko/20030624 Netscape/7.1 (ax) X-Accept-Language: en-us, en MIME-Version: 1.0 To: Rotary motors in aircraft Subject: Re: [FlyRotary] Re: Cooling References: In-Reply-To: Content-Type: multipart/alternative; boundary="------------010308020800010002000404" This is a multi-part message in MIME format. --------------010308020800010002000404 Content-Type: text/plain; charset=us-ascii; format=flowed Content-Transfer-Encoding: 7bit Al Gietzen wrote: > The big issues are that the specific heat (heat carrying capacity) of > oil is about half that of water; so you would need very high flow > rate, which is a double problem since the viscosity is much higher, > the pumping power required is very large. Thanks for pointing that out! The old "if it would work, someone would be doing it already" seems to apply here. Thanks, MikeJ --------------010308020800010002000404 Content-Type: text/html; charset=us-ascii Content-Transfer-Encoding: 7bit Al Gietzen wrote:

The big issues are that the specific heat (heat carrying capacity) of oil is about half that of water; so you would need very high flow rate, which is a double problem since the viscosity is much higher, the pumping power required is very large.

Thanks for pointing that out! The old "if it would work, someone would be doing it already" seems to apply here.
Thanks,
MikeJ
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