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evdbroek
07-01-2014, 05:55 PM
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azeezy
07-02-2014, 08:55 AM
Use the flow of nitrogen entering the room and assume no volume ventilating in or out. The number of moles of Nitrogen will increase in the room.
1) Assume "a" moles of O2 in room (@ ~21% of room volume) from total moles of air as "n" moles.
2) Let "b" be the moles of N2 entering the room at a release time t.
3) O2 Dilution = a/(b+n) x 100%
Indoor dispersion can be done using Graham's law of diffusion/effusion.
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