REFLECTOR: cooling requirements

[Wayne]

Has anyone experimented  with a variable inlet cooling system for a water cooled engine?
Wayne
  ----- Original Message ----- 
  From: Al Gietzen 
  To: 'Velocity Aircraft Owners and Builders list' 
  Sent: Saturday, October 22, 2005 12:44 AM
  Subject: RE: REFLECTOR: cooling requirements


  Subject: RE: REFLECTOR: cooling requirements



  Al, when I was studying cooling to design a Naca fed system for my 0320 Long EZ in 1980, I got a cooling engineering study from Lycoming and all of their calculation for cooling air requirements  was in pounds of air. The cooling potential of a cu ft of air varies considerably with density (temp and alt). Just a thought. 

  Herb Sanders



  You're right, Herb.  It varies inversely with temp and directly with pressure; so I guess we could just say directly proportional to DA.  The cooling ability of the air decreases with altitude in direct proportion to the decrease in the engines output power - unless you have a turbo, of course.



  In my calcs I used air at sea level 90F.



  Al



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