Effects of a large bypass with a small turbine?
11-21-2006 | 04:59 PM
#26
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From: Zoolie, WI
RE: Effects of a large bypass with a small turbine?
Experience suggests that wrapping a pipe with ceramic blanket will turn the blanket brittle and useless. If you're going to make your own pipe, there is .008 sheet metal widely available at mcmaster.com (stainless) and you can make about 4 pipes for 80 bucks or so and do your own testing.
You can use safety wire to attach just about anything to the outside of a pipe.
6/32 screws will hold the pipe together, but you will need a punch to start a hole to drill through.
You can use safety wire to attach just about anything to the outside of a pipe.
6/32 screws will hold the pipe together, but you will need a punch to start a hole to drill through.
11-21-2006 | 05:16 PM
#27
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From: Baton Rouge,
LA
RE: Effects of a large bypass with a small turbine?
ORIGINAL: Kevin Greene
My idea to reduce thrust losses is to come up with a pipe that is cone shaped and retains most of the turbine efflux heat without transferring excessive heat to the airframe.....
How about this....A cone shaped pipe like Wren Turbines has developed wrapped in a ceramic blanket instead of being of dual wall construction. The ceramic blanket would actually help retain heat in the pipe but provide enough of an insulating value to not transfer excessive heat to the airframe----
Kevin
My idea to reduce thrust losses is to come up with a pipe that is cone shaped and retains most of the turbine efflux heat without transferring excessive heat to the airframe.....
How about this....A cone shaped pipe like Wren Turbines has developed wrapped in a ceramic blanket instead of being of dual wall construction. The ceramic blanket would actually help retain heat in the pipe but provide enough of an insulating value to not transfer excessive heat to the airframe----
Kevin
I would think double wall pipe with the second wall of even thinner aluminum would work well..
I have allways used aluminum foil... Does not work very well... The inside of my plane gets very hot..
but its lightest of any.
