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Calculation for inflation time of an air bladder?

  1. Apr 25, 2012 #1

    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:

    -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.

  2. jcsd
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