Mailing List flyrotary@lancaironline.net Message #32617
From: Ed Anderson <eanderson@carolina.rr.com>
Subject: Re: [FlyRotary] Re: Temperature control
Date: Mon, 10 Jul 2006 17:48:54 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
Jesse, I once tried Red Line water wetter - I was really impressed with reports of 10F temp drops in coolant temps - however, there was no detectable difference when I used it in my system.  HOWEVER, that was back in the early days, before I understood what was really happening.  I suspect that the major problem I had back then was with adequate air flow through the core - so water wetter probably would not have any success in fixing that problem {:>).
 
I probably should try Redline again just to see if it would make a difference now.
 
Ed
 
 
----- Original Message -----
From: jesse farr
Sent: Monday, July 10, 2006 4:30 PM
Subject: [FlyRotary] Re: Temperature control

What's wrong with redline water wetter? In racie cars, seems that it will increase heat absorption and disbursement pretty well.
jofarr, soddy tn
 
----- Original Message -----
----- Original Message -----
Welcome to the club, cooling appears to always be the first item of business.   I can not quantify the differences those changes you propose would make.
 
However, a 50/50 coolant mixture has a 40% lower specific heat than pure water alone.  Meaning it will not carry as much heat away at the same coolant temperature.  Would pure water give you 40% more cooling - I personally doubt it, would it help, I believe it certainly would.
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