REFLECTOR: Cabin Heat

Ruben Creus ruben at vainneg.com
Sat Jan 14 21:39:46 CST 2012


John, 

 

Could you send pictures of the damper install? What type of blower did you
use?

 

Thanks.

 

Ruben

 

  _____  

From: John Dibble [mailto:aminetech at bluefrog.com] 
Sent: Friday, January 13, 2012 9:21 PM
To: Velocity Aircraft Owners and Builders list
Subject: Re: REFLECTOR: Cabin Heat

 

  

Don Johnston wrote: 

Ruben, 

Here's my theory: The temperature of the air is only going to increase so
much by passing through the oil cooler.  On a cold day in the north with the
OAT at -10F, I'm guessing an increase of 50F from passing through the oil
cooler. This means 40 degree air blowing in.


If the diverter flap completely closes the exit duct, the amount of cooling
air is reduced causing the oil temp to increase and the air heats up more. 

  

So I installed a damper between the front/side NACA and the oil cooler.
Moving the damper to block the outside air uncovers a duct from the cabin
which is fed by a blower. This way I am recirculating cabin air through the
oil cooler at a lower speed.


I installed something very similar.  I use it for cooling while taxiing.
The flap operates automatically when the blower is turned on.  It works
well.  I had plans to run a duct from the cabin to the blower to recirculate
air, but so far haven't needed that. 

John 

  

In a couple years when I'm flying I'll let you know if it works. :-) 

-Don 

  
From: ruben at vainneg.com 
To: reflector at tvbf.org 
Date: Thu, 12 Jan 2012 21:35:34 -0500 
Subject: REFLECTOR: Cabin Heat 

Hi all, 

When I am flying below 0 Celsius outside temperature, the oil cooler seems
to not heat enough the air coming into the cabin. The other day at -12C
outside it was very chill in the cabin. I heard some of you partially cover
the cooler, but not sure if the can be risky if covered too much. Has any
one had any experience trying to get more cabin heat? 

Ruben

 





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