Return-Path: Received: from [24.25.9.102] (HELO ms-smtp-03-eri0.southeast.rr.com) by logan.com (CommuniGate Pro SMTP 4.2.5) with ESMTP id 594941 for flyrotary@lancaironline.net; Fri, 07 Jan 2005 14:20:21 -0500 Received-SPF: none receiver=logan.com; client-ip=24.25.9.102; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-069-132-111-212.carolina.rr.com [69.132.111.212]) by ms-smtp-03-eri0.southeast.rr.com (8.12.10/8.12.7) with SMTP id j07JJokd009436 for ; Fri, 7 Jan 2005 14:19:51 -0500 (EST) Message-ID: <002701c4f4ed$df261d20$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: oi/water Exchanger [FlyRotary] Re: fluidyne oil cooler Date: Fri, 7 Jan 2005 14:19:55 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0024_01C4F4C3.F6205290" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2800.1106 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2800.1106 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0024_01C4F4C3.F6205290 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable [FlyRotary] Re: fluidyne oil coolerThe bottom line as we know is that = ultimately the air flow has to carry all the heat away from the = installation. So oil to water heat exchangers end up needing (as Ken = points out) a larger radiator (possibly 1/3 larger) to handle the = additional heat dumped into the coolant by the oil/water exchanger.. =20 I believe that oil/water heat exchangers might be justified in an = aircraft installation if for some reason the lay-out precluded getting = air to an oil cooler but did permit you to install a larger radiator = capable of handling the heat load for the coolant and oil. Otherwise, I = don't believe they would work very well in most of our installations. = There could be exceptions of course. My $0.02 Ed Anderson ----- Original Message -----=20 From: Ken Welter=20 To: Rotary motors in aircraft=20 Sent: Friday, January 07, 2005 1:24 PM Subject: [FlyRotary] Re: fluidyne oil cooler I tried a 85,000 btu fluidyne oil to water heat exchanger but it = sent my water temp through the roof so I abandoned it as I would have = had to increase the radiator size. If anyone is interested I would sell it for $200 Ken Al, yes C&R makes their own oil-to-water coolers. I have never = talked to them to ask about pressure drop on the oil side. They sure = build good looking stuff though (how's that for scientific!!!(grin)). Ken Powell Bryant, Arkansas ------=_NextPart_000_0024_01C4F4C3.F6205290 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable [FlyRotary] Re: fluidyne oil cooler
The bottom line as we know is = that ultimately=20 the air flow has to carry all the heat away from the installation.  = So oil=20 to water heat exchangers end up needing (as Ken points out) a larger = radiator=20 (possibly 1/3 larger) to handle the additional heat dumped into the = coolant by=20 the oil/water exchanger.. 
 
I believe that oil/water heat = exchangers might be=20 justified in an aircraft installation if for some reason the lay-out = precluded=20 getting air to an oil cooler but did permit you to install a larger = radiator=20 capable of handling the heat load for the coolant and oil.  = Otherwise, I=20 don't believe they would work very well in most of = our installations. =20 There could be exceptions of course.
 
My $0.02
 
Ed Anderson
 
----- Original Message -----
From:=20 Ken=20 Welter
Sent: Friday, January 07, 2005 = 1:24=20 PM
Subject: [FlyRotary] Re: = fluidyne oil=20 cooler

  I tried a 85,000 btu fluidyne oil to = water=20 heat exchanger but it sent my water temp through the roof so I = abandoned it as=20 I would have had to increase the radiator size.
 If anyone is interested I would sell = it for=20 $200
  Ken






Al, yes C&R makes their own = oil-to-water=20 coolers.  I have never talked to them to ask about pressure = drop on the=20 oil side.  They sure build good looking stuff though (how's = that for=20 scientific!!!(grin)).

Ken Powell
Bryant,=20 Arkansas
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