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Thread: Math question... Anyone can help I would appreciate it?

  1. #1
    WetWillie
    I am trying to do the math on the following problem and I need some help.
    I want to use a 88gram C02 cartridge (Cartridge does not say how much air is in it?) and want to flow 45psi of air out of it with a regulator. How can I figure out how long the cartridge will run for??
    Does this make sense??
    http://www.hesvanzweeden.nl/media/Airsource_tanks.jpg

  2. #2
    Senior Member
    Join Date
    Aug 2009
    Posts
    912
    till it runs out of air..... sorry I had too....

  3. #3
    WetWillie
    I just dont want to waste my time building somthing if it lasts 10 seconds..
    what other info do I need to figure this out?

  4. #4
    Jordy
    You need more information I think, such as volume and perhaps the pressure inside the cartridge. :idea:

  5. #5
    Sleeper CP
    You need more information I think, such as volume and perhaps the pressure inside the cartridge. :idea:
    Yeah, what he said. Volume and pressure would help you answer your question. Think of an air compressor tank, big dif between 40 psi and 110 psi.
    I think you are going to need to just do a dry run, unless you can call the manufacture and ask an engineer there.
    Just my .02
    Sleeper CP

  6. #6
    WetWillie
    What the hell does the 88 gram stand for??

  7. #7
    cruser
    I say it depends on the volumn of the cartride and the discharge rate. It lasts as long as it lasts. Kinda like sex.

  8. #8
    faster
    if you can regulate the flow of air then you can control how long it will take

  9. #9
    YeLLowBoaT
    use this forumla
    pV=nRT That will give you the volume of CO2 at 45 psi at a given temp...
    p= presure, V= volume, n = number of moles( number of moleclues divide by avogadro's number) R = the constant of proportionality(8.314 472 J mol-1 K-1 )
    take the volume you get and divide by the cfm you need and you will get you and approx run time

  10. #10
    ROZ
    continuous or short bursts? and how long each burst? regardlss, the co2 canister mfg will be able to answer that question with ease...

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