Return-Path: Received: from [65.54.169.53] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.3c1) with ESMTP id 725486 for flyrotary@lancaironline.net; Fri, 11 Feb 2005 16:33:48 -0500 Received-SPF: pass receiver=logan.com; client-ip=65.54.169.53; envelope-from=lors01@msn.com Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 11 Feb 2005 13:33:00 -0800 Message-ID: Received: from 4.174.6.71 by BAY3-DAV23.phx.gbl with DAV; Fri, 11 Feb 2005 21:32:40 +0000 X-Originating-IP: [4.174.6.71] X-Originating-Email: [lors01@msn.com] X-Sender: lors01@msn.com From: "Tracy Crook" To: "Rotary motors in aircraft" , References: Subject: Re: [FlyRotary] Re: Heating the Fuel Date: Fri, 11 Feb 2005 16:32:37 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0056_01C51057.4C30E880" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 9 X-MimeOLE: Produced By MSN MimeOLE V9.10.0009.2900 Seal-Send-Time: Fri, 11 Feb 2005 16:32:37 -0500 X-OriginalArrivalTime: 11 Feb 2005 21:33:00.0669 (UTC) FILETIME=[42C0E2D0:01C51081] This is a multi-part message in MIME format. ------=_NextPart_000_0056_01C51057.4C30E880 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable At some temperature this would be true. But, we still don't know what = that temperature is. It has been noted that some components are = volatile at temps as low as 70 deg F. If this is a real world number, = you could not let the plane sit on a ramp in Florida without = pressurizing your tank. Or it might be that this is a trace component = that does not matter if it boils off. =20 Obviously there is some temperature X that is acceptable. I just want = to know what it is. =20 Also keep in mind that steam (even gasoline steam) INSTANTLY condenses = when its temperature falls below boiling point. This is what keeps it = from being lost from the tank vent. At least that is what I assume = based on my limited gas theory understanding. This idea may be DOA but = I want to know the cause of death : ) Tracy =20 Tracy.. if you want to "boil" your fuel to use as a coolant source, = you need to pressurize the system/plug the vent to prevent the loss of = volatile portions of the gasoline in its vapor state. Your "wet wing" = would become a pressure vessel at that point. > SNIP< Dave ------=_NextPart_000_0056_01C51057.4C30E880 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable

At some temperature this would be true. But, = we still=20 don't know what that temperature is. It has been noted that some=20 components are volatile at temps as low as 70 deg F. = If=20 this is a real world number, you could not let the plane sit on a ramp = in=20 Florida without pressurizing your tank. Or it might be that = this is a=20 trace component that does not matter if it boils off.

Obviously there is some temperature X that is acceptable. I = just want=20 to know what it is.

Also keep in mind that steam (even gasoline steam) INSTANTLY = condenses when=20 its temperature falls below boiling point. This is what keeps it = from=20 being lost from the tank vent. At least that is what I assume = based on my=20 limited gas theory understanding. This idea may be DOA but I want = to know=20 the cause of death : )

Tracy

Tracy.. if you want to "boil" your fuel to use as a coolant = source, you=20 need to pressurize the system/plug the vent to prevent the loss of = volatile=20 portions of the gasoline in its vapor state. Your "wet wing" would = become a=20 pressure vessel at that point. > SNIP<

Dave

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