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Room Pressure from Ventilation & Exhaust Rates

  1. Jun 5, 2014 #1
    If I am trying to estimate a room pressure (not having any measurement devices), could I estimate it as follows:

    Vo = Volumetric Air flow rate supplied into Room
    Ve = Volumetric Air flow rate exhausted from Room out to atmosphere
    Pf = Static Pressure Capability of fan
    Pr= Pressure of Room

    Pr = ((Vo-Ve)/Vo)*Pf

    This is for a positive air pressure room that has a greater Vo than Ve. Also I am considering exfiltration to be negligible.

    I am hoping to use this pressure to estimate maximum air flow rates through an exterior door (which I am treating as an orifice once the system/room is fully pressurized).
     
  2. jcsd
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