Continue to Site

Eng-Tips is the largest engineering community on the Internet

Intelligent Work Forums for Engineering Professionals

  • Congratulations SDETERS on being selected by the Eng-Tips community for having the most helpful posts in the forums last week. Way to Go!

Recent content by R4j4n

  1. R4j4n

    Flow calculation through orifices in series

    What is it though that you're actually trying to do? At current conditions: DP across the second orifice is 2.8 Kg/cm2_g. I am trying to calculate flow in this case.
  2. R4j4n

    Flow calculation through orifices in series

    I am also not sure what 'restriction(choke)' mean. I am only assuming it means that choked flow. Assuming it not choked flow, D/L ration is 0.009. Hence usual orifice formula wouldn't apply. I do not have drawing of the orifice. Data sheets mentions ' It is a restriction(choke) type venturi...
  3. R4j4n

    Flow calculation through orifices in series

    My understanding is that Pcrit is property of service gas at given temperature and pressure. Pcrit is not a function of orifice dimensions. Also, since it is restriction orifice, I am assuming no pressure recovery.
  4. R4j4n

    Flow calculation through orifices in series

    I have two orifices ( Capillary type ) in series in H2 service at 30 kg/cm2_g and 40 Deg C. Line size is 0.75 inch. As per their datasheet 1st Orifice: Do = 0.51 mm & L = 50 mm ; Pressure drop at Max flow : 6.89 kg/cm2_g 2nd orifice: Do = 0.51 mm & L = 50.83 mm ; ; Pressure drop at Max flow ...

Part and Inventory Search