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Recent content by pierreick

  1. pierreick

    Compensating pressure in Cryogenic Storage Tank

    Hi, Using Peng Robinson EOS for CO2 @ 14 bara and -31C, I got Ro gas = 36.35 kg/m3 and RO liquid (saturation) =1113.16kg/m3; Z gas = 0.8420. Waiting for more detail about your tank(s) and volume gas / Volume total at initial condition. Same for your calculation. Pierre
  2. pierreick

    Compensating pressure in Cryogenic Storage Tank

    Data to support your calculations. I've used hot water bath to vaporize CO2. You did not supply enough information to validate your calculation, at least you should share with us your work! Cheers, Pierre
  3. pierreick

    Relieving temperature PSV

    The relieving temperature for a pressure safety valve (PSV) is the temperature of the fluid at the time the valve is expected to open due to an overpressure event. Pierre
  4. pierreick

    seasonal above ground water line for farm use

    An interesting paper about gravity flow system in rural areas. Pierre
  5. pierreick

    Friedel's Model (two-phase) and Noise Attenuation Questions

    Hi, Consider this document from manufacturer (Leser) about sound attenuation. Pierre
  6. pierreick

    Cavitation while running 1 pump but not 2

    Hi, Let you consider this resource. can you share an isometric/ PId of your system? Pierre
  7. pierreick

    pumps with different kw rating

    Hi, Share with us pumps curves and data sheets. I believe this thread is going nowhere. Why these questions? Pierre
  8. pierreick

    PSV Inlet and Outlet Pressure Drop Calculation Question

    Hi, To add to the reply above, you could find on Youtube a set of great lectures on fluid mechanics by Prof Biddle from Caltex : Enjoy the movies. Pierre
  9. pierreick

    seasonal above ground water line for farm use

    Hi, You may want to consider a water tower, similar to what I'm using in my orchard . From the well I transfer the water to the tank (water tower) , the well pump is started by LSL and stopped by LSH . From the water tank I distribute the water to the garden and to the house through a network...
  10. pierreick

    Zone classification for sewage storage and packing system

    HI, Should be : Zone 2 is a place in which an explosive atmosphere is not likely to occur in normal operation but, if it does occur, will persist for a short period only. These areas only become hazardous in case of an accident or some unusual operating condition. For reference...
  11. pierreick

    CEMS Carbon Monoxide Spikes

    Thanks to share with us the composition of the exhaust gas during Normal operation and spikes. Could it be a defect of one piece of equipment (main equipment or analyzer)? Could it be a change of process parameters which affects the combustion? Could it be a stream added for 3 or 4 minutes...
  12. pierreick

    Risk of through hole on live piping

    How come? A plant can be shut down, this is a management issue! What is the fluid? what are the operating conditions? Can you take a picture? What is your role within your organization? Pierre
  13. pierreick

    Zone classification for sewage storage and packing system

    Make sure the sensors are calibrated properly, at the right thresholds. What are the actions in case of concentration high? Hope you did a safety review. Definitely a dangerous area. Operators should have a portable sensor all the time with them. Based on my experience 10 years in soda ash...

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