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Calculation for inflation time of an air bladder?

  1. Apr 25, 2012 #1
    Hi,

    I was curious if you could help me. I am currently working on a project where we are using 12g CO2 cylinders to fill an expanable air bladder to absorb impacts like an air bag. I am having trouble though calculating how long it would take to inflate the bladder with known variables:

    -Given-
    -CO2 canister pressure = 858psi
    -Orfice diamerter = 0.028"
    -Expanded bladder volume = 1317 in^3
    -Final bladder pressure = 2psi

    We are using three cylinders to inflate the bladder along with each having their own puncture pin with orfice size given.

    Any help would be greatly appriciated.

    Regards,
    Chris
     
  2. jcsd
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