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Advantages of Three Wheel Boot Strap System Airconditioning

  1. Jan 6, 2016 #1
    I want to the advantages of three wheel Bootstrap air-conditioning System over two Wheel system in an air cycle machine used in aircraft environmental control system. Can anyone please help.
  2. jcsd
  3. Jan 6, 2016 #2


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    Staff: Mentor

    I've never heard of any of that - there may be a translation issue. Can you provide a source describing these different systems?
  4. Jan 8, 2016 #3
    These are air conditioning system used in aircrafts mainly. Visit this page http://www.thisisecs.com/blog/
  5. Jan 9, 2016 #4


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    Gold Member

    Just an guess, maybe educated or not.

    But the three wheel provides a more controlled amount of air through the heat exchanger from the fan being connected to the shaft.
    It would work "better" on the ground for the comfort of the passengers I think, when there is no forced air from the movement of the airplane.
    Thermodynamically there doesn't seem to be all that much of a difference if any.
  6. Jan 9, 2016 #5
    Yes may be you are right.Thanks Dude.
  7. Jan 10, 2016 #6


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    Gold Member

    As an after thought, rather than from just a design perspective, there is also the operations perspective.

    The number of system components to check for proper operation, and if a fault detected then mantainance turnaround.
    With the three wheel, if the airconditioning doesn't function, the fault can be pinpointed more directly to the AC unit - replace the unit.
    In the two wheel, is it the fan for forced flow and/or its electrical circuit, or the AC unit. Mechanics have a few more things to check.
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