Compressed air vs. N2

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  • pyerke01
    Registered User
    • Mar 2008
    • 3

    #1

    Compressed air vs. N2

    Im looking to move away from CO2 and was wondering what works better with an Automag; Compressed Air or N2?
  • quick_spyder
    Registered User
    • Mar 2006
    • 146

    #2
    They're the same thing.

    Comment

    • Hilltop Customs
      Registered User
      • Aug 2007
      • 1260

      #3
      compressed air is composed of:

      Nitrogen: 78.084 %
      Oxygen O2 20.9476 %
      Argon: 0.934 %
      Carbon Dioxide: 0.0314 %
      Neon: 0.001818 %
      Methane: 0.0002 %
      Helium: 0.000524 %
      Krypton: 0.000114 %
      Hydrogen: 0.00005 %
      Xenon: 0.0000087 %
      and more
      just like the air your breathing right now.


      For the automag, they both provide the same benefits over CO2.

      Comment

      • SchoolU101
        The Peacemaker
        • Mar 2003
        • 70

        #4
        To clarify, it's all really just compressed air. Some people call it nitro because it sounds cool and air is mostly nitrogen. But I've never seen a field that fills pure N2. But even if they did, a regular compressed air tank would work.
        All YOUR BASE ARE BELONG TO US

        Comment

        • michbich
          machinist-biochemist
          • Jul 2007
          • 849

          #5
          Originally posted by SchoolU101
          To clarify, it's all really just compressed air. Some people call it nitro because it sounds cool and air is mostly nitrogen. But I've never seen a field that fills pure N2. But even if they did, a regular compressed air tank would work.
          Much more expensive for a feild to fill N2 compared to air.

          Comment

          • MANN
            I am in TN. GO VOLS.
            • Apr 2006
            • 4266

            #6
            Originally posted by michbich
            Much more expensive for a feild to fill N2 compared to air.
            QFT

            Comment

            • LK-13
              Confused on purpose!
              • Dec 2006
              • 584

              #7
              Originally posted by Hilltop Customs
              compressed air is composed of:

              Nitrogen: 78.084 %
              Oxygen O2 20.9476 %
              Argon: 0.934 %
              Carbon Dioxide: 0.0314 %
              Neon: 0.001818 %
              Methane: 0.0002 %
              Helium: 0.000524 %
              Krypton: 0.000114 %
              Hydrogen: 0.00005 %
              Xenon: 0.0000087 %
              and more
              just like the air your breathing right now.


              For the automag, they both provide the same benefits over CO2.
              no point in being that exact.
              the percentages will change with each cc of atmosphere you analize.
              better way to look at it is
              compressed air is composed of
              78% nitrogen
              20% oxygen
              2% mixed gasses with CO2 being the largest component
              on average, but all numbers are subject to change.

              Comment

              • michbich
                machinist-biochemist
                • Jul 2007
                • 849

                #8
                Originally posted by LK-13
                no point in being that exact.
                the percentages will change with each cc of atmosphere you analize.
                better way to look at it is
                compressed air is composed of
                78% nitrogen
                20% oxygen
                2% mixed gasses with CO2 being the largest component
                on average, but all numbers are subject to change.
                Let's not be picky, we understood what he was to saying... That most of the air is N2 to begin with.

                Comment

                • Hilltop Customs
                  Registered User
                  • Aug 2007
                  • 1260

                  #9
                  Originally posted by LK-13
                  no point in being that exact.
                  the percentages will change with each cc of atmosphere you analize.
                  better way to look at it is
                  compressed air is composed of
                  78% nitrogen
                  20% oxygen
                  2% mixed gasses with CO2 being the largest component
                  on average, but all numbers are subject to change.
                  but it was easier for me to search for "air composition" and copy/paste than type what you just said

                  its true that the numbers to vary but at sea level, with many samples, the numbers I posted will be the average. Only reason I even searched for it was because I couldnt remember the lower % gasses.




                  On another note, pure compressed N2 would be much safer to use since there would be no oxygen content in it. Ever hear of the air tank explosions that have happened because of people putting oil in the fill nipple? If we were using N2 instead of compressed air those explosions wouldnt have been possible.

                  Comment

                  • michbich
                    machinist-biochemist
                    • Jul 2007
                    • 849

                    #10
                    Originally posted by Hilltop Customs
                    (...)

                    On another note, pure compressed N2 would be much safer to use since there would be no oxygen content in it. Ever hear of the air tank explosions that have happened because of people putting oil in the fill nipple? If we were using N2 instead of compressed air those explosions wouldnt have been possible.
                    You sir are correct. No O2 = no combustion

                    N2 itself is very stable, it's caused by it's triple bond. For example, it goes through gas and deisel engines and comes out unchanged (only hotter).

                    Comment

                    • questionful
                      LNIB
                      • Dec 2006
                      • 1416

                      #11
                      Which gas is heavier at the same volume, temperature, and pressure?

                      Comment

                      • michbich
                        machinist-biochemist
                        • Jul 2007
                        • 849

                        #12
                        Originally posted by questionful
                        Which gas is heavier at the same volume, temperature, and pressure?
                        If the volume, temp and pressure are the same. You can use PV=NRT to determine that the amount of atoms will be the same concidering they both act as perfect gasses.

                        Concidering you have the same amount of molecules (lets say 1 mol):

                        1 mole = 6,022 x 10@23 molecules
                        N2=28g/mol
                        O2=32g/mol
                        lets neglect the others

                        air:
                        80x28=2240g
                        20x32=640g
                        So 1 mol of air would weight 2880g.

                        pure N2
                        100x28=2800g
                        So 1 mol of N2 would weight 2800g.


                        N2 will be lighter than air with the same amount of moles.
                        Last edited by michbich; 03-27-2008, 04:47 AM.

                        Comment

                        • questionful
                          LNIB
                          • Dec 2006
                          • 1416

                          #13
                          Well after skimming through a quick google (http://www.combro.co.uk/nigelh/diver/vdw.html), I'm going to drop it. It looks kinda complicated. And I think if there was a gas better suited to firing projectiles, someone would have thought of it by now.

                          Comment

                          • Spider-TW
                            U R techno-literate!

                            • Oct 2006
                            • 3554

                            #14
                            Just don't vent a nitrogen tank inside of a closed up car; no O2 is bad for you.

                            Comment

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