X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from qmta03.emeryville.ca.mail.comcast.net ([76.96.30.32] verified) by logan.com (CommuniGate Pro SMTP 5.4.1) with ESMTP id 5111459 for flyrotary@lancaironline.net; Fri, 02 Sep 2011 07:00:56 -0400 Received-SPF: pass receiver=logan.com; client-ip=76.96.30.32; envelope-from=wschertz@comcast.net Received: from omta17.emeryville.ca.mail.comcast.net ([76.96.30.73]) by qmta03.emeryville.ca.mail.comcast.net with comcast id Tn0B1h0011afHeLA3n0G7E; Fri, 02 Sep 2011 11:00:16 +0000 Received: from WschertzPC ([72.101.0.12]) by omta17.emeryville.ca.mail.comcast.net with comcast id TmzG1h00G0FYBFL8dmzKQU; Fri, 02 Sep 2011 10:59:24 +0000 Message-ID: From: "Bill Schertz" To: "Rotary motors in aircraft" References: In-Reply-To: Subject: Re: [FlyRotary] Re: vapor lock Date: Fri, 2 Sep 2011 06:00:12 -0500 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0026_01CC6935.93EABF00" X-Priority: 3 X-MSMail-Priority: Normal Importance: Normal X-Mailer: Microsoft Windows Live Mail 15.4.3538.513 X-MimeOLE: Produced By Microsoft MimeOLE V15.4.3538.513 This is a multi-part message in MIME format. ------=_NextPart_000_0026_01CC6935.93EABF00 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Actually, if you just mix ethanol with gasoline, the vapor pressure will = go up (not like salt in water). To compensate, the refiners formulate = the gasoline that is going to be mixed with ethanol to have a = =E2=80=98lower=E2=80=99 vapor pressure (volatility) so that when the = ethanol is added the vapor pressure is then in the right range. Bill Schertz KIS Cruiser #4045 N343BS Phase one testing Completed From: Dave=20 Sent: Friday, September 02, 2011 3:06 AM To: Rotary motors in aircraft=20 Subject: [FlyRotary] Re: vapor lock It raises the boiling point in the same way salt does to water... and is = proportional to the mixture ratios.. Dave On 9/2/2011 2:04 AM, Steven W. Boese wrote:=20 The higher temperature tolerance of the auto fuel with ethanol = compared to the auto fuel without ethanol was surprising to me. But I only collect data --- it is up to an engineer to make sense of = it ;>) Steve Boese RV6A, 1986 13B NA, RD1A, EC2 =20 -- Homepage: http://www.flyrotary.com/ Archive and UnSub: = http://mail.lancaironline.net:81/lists/flyrotary/List.html ------=_NextPart_000_0026_01CC6935.93EABF00 Content-Type: text/html; charset="utf-8" Content-Transfer-Encoding: quoted-printable
Actually, if you just mix ethanol with gasoline, the vapor pressure = will go=20 up (not like salt in water). To compensate, the refiners formulate the = gasoline=20 that is going to be mixed with ethanol to have a =E2=80=98lower=E2=80=99 = vapor pressure=20 (volatility) so that when the ethanol is added the vapor pressure is = then in the=20 right range.
 
Bill=20 Schertz
KIS Cruiser #4045
N343BS
Phase one testing = Completed
 
From: Dave
Sent: Friday, September 02, 2011 3:06 AM
Subject: [FlyRotary] Re: vapor lock
 
It=20 raises the boiling point in the same way salt does to water... and is=20 proportional to the mixture ratios..

Dave

On 9/2/2011 2:04 = AM,=20 Steven W. Boese wrote:=20

 

The higher temperature tolerance of the auto fuel = with ethanol=20 compared to the auto fuel without ethanol was surprising to = me.

 

But I only collect data --- it is up to an engineer = to make=20 sense of it ;>)

 

Steve Boese
RV6A, 1986 13B NA, RD1A,=20 EC2


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