Mailing List lml@lancaironline.net Message #21795
From: Rene Rey <RJRaviation@msn.com>
Sender: Marvin Kaye <marv@lancaironline.net>
Subject: [LML] Re: De-ice System on IV P, comments about DC Power
Date: Sat, 06 Dec 2003 00:19:22 -0500
To: <lml@lancaironline.net>
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 -----
Sent: Wednesday, November 26, 2003 4:16 PM
Subject: [LML] Re: De-ice System on IV P

Posted for "craig blitzer" <CBLITZER@triad.rr.com>:

There was a recent article in the last AOPA magazine that talked a great deal
about various de-icing systems, (including those for kit planes),  and what is
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
building.  Relatively recently Ice Management Systems de-icing system became
available. It seems to be a good approach, in that it draws a reasonable
amount of DC power, requires no consumable fluids and does not add a
substantial amount of weight to the aircraft.
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