Return-Path: Sender: (Marvin Kaye) To: lml@lancaironline.net Date: Sat, 06 Dec 2003 00:19:22 -0500 Message-ID: X-Original-Return-Path: Received: from [65.54.169.118] (HELO hotmail.com) by logan.com (CommuniGate Pro SMTP 4.1.8) with ESMTP id 2790502 for lml@lancaironline.net; Fri, 05 Dec 2003 21:38:37 -0500 Received: from mail pickup service by hotmail.com with Microsoft SMTPSVC; Fri, 5 Dec 2003 18:38:37 -0800 Received: from 163.179.138.18 by bay3-dav88.bay3.hotmail.com with DAV; Sat, 06 Dec 2003 02:38:37 +0000 X-Originating-IP: [163.179.138.18] X-Originating-Email: [rjraviation@msn.com] X-Sender: rjraviation@msn.com From: "Rene Rey" X-Original-To: "LML" Subject: [LML] Re: De-ice System on IV P, comments about DC Power X-Original-Date: Fri, 5 Dec 2003 20:35:36 -0600 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_08BE_01C3BB6F.56648CA0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: MSN 8.5 X-MimeOLE: Produced By MSN MimeOLE V8.50.0017.1202 Seal-Send-Time: Fri, 5 Dec 2003 20:35:36 -0600 X-Original-Message-ID: X-OriginalArrivalTime: 06 Dec 2003 02:38:37.0251 (UTC) FILETIME=[0CEDC130:01C3BBA2] This is a multi-part message in MIME format. ------=_NextPart_000_08BE_01C3BB6F.56648CA0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Howdy, All: Don't have a clue how this deice system works but, if it depends on an = electrically powered heater, here are my thoughts. A simple resistive = heater will convert DC power at an unalterable rate of some 3.4 BTUs per = Watt. So, with a 12V system, assuming a budget of 30 Amps (that's a = lot!) that gives us 360 Watts, or 1220 BTUs. Now, I'm sure someone with = far better knowledge of thermodynamics than I (I'm just an Electrical = Eng) can figure out how much anti-ice or de-ice 1200 BTUs can provide. = My guess is that unless this system is not just a simple resistive = heater, 1200 BTUs just won't cut it. Hopefully someone out there has = the answer to the question. My 2 cents' worth, certainly would like to know a good answer to the = original question! Rene Rey LNC4, maybe 80% finished., GPM ----- Original Message -----=20 From: Marvin Kaye=20 Sent: Wednesday, November 26, 2003 4:16 PM Subject: [LML] Re: De-ice System on IV P Posted for "craig blitzer" : There was a recent article in the last AOPA magazine that talked a = great deal=20 about various de-icing systems, (including those for kit planes), and = what is=20 required for flight into known ice. I found it to be very informative Craig Blitzer cblitzer@triad.rr.com >>>> I am pondering whether to install a de-icing system on the IV P = I am=20 building. Relatively recently Ice Management Systems de-icing system = became=20 available. It seems to be a good approach, in that it draws a = reasonable=20 amount of DC power, requires no consumable fluids and does not add a=20 substantial amount of weight to the aircraft. ------=_NextPart_000_08BE_01C3BB6F.56648CA0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Howdy, All:
 
Don't have a clue how this deice system works but, if it depends on = an=20 electrically powered heater, here are my thoughts.  A simple = resistive=20 heater will convert DC power at an unalterable rate of some 3.4 BTUs per = Watt.  So, with a 12V system, assuming a budget of 30 Amps (that's = a lot!)=20 that gives us 360 Watts, or 1220 BTUs.  Now, I'm sure someone with = far=20 better knowledge of thermodynamics than I (I'm just an Electrical Eng) = can=20 figure out how much anti-ice or de-ice 1200 BTUs can provide.  My = guess is=20 that unless this system is not just a simple resistive heater, 1200 BTUs = just=20 won't cut it.  Hopefully someone out there has the answer to the=20 question.
 
My 2 cents' worth, certainly would like to know a good answer to = the=20 original question!
 
Rene Rey
LNC4, maybe 80% finished., GPM
----- Original Message -----
From: Marvin Kaye
Sent: Wednesday, November 26, = 2003 4:16=20 PM
Subject: [LML] Re: De-ice = System on IV=20 P

Posted for "craig blitzer" <CBLITZER@triad.rr.com>:
<= BR>There=20 was a recent article in the last AOPA magazine that talked a great = deal=20
about various de-icing systems, (including those for kit = planes), =20 and what is
required for flight into known ice.  I found it = to be=20 very informative
Craig Blitzer
cblitzer@triad.rr.com

&g= t;>>> =20 I am pondering whether to install a de-icing system on the IV P I am=20
building.  Relatively recently Ice Management Systems = de-icing system=20 became
available. It seems to be a good approach, in that it draws = a=20 reasonable
amount of DC power, requires no consumable fluids and = does not=20 add a
substantial amount of weight to the=20 aircraft.
------=_NextPart_000_08BE_01C3BB6F.56648CA0--