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  1. pierreick

    Real or ideal cp/cv for orifice sizing

    Consider the document attached in particular slide 7. Your statement about safety valve and use of ideal values of Cp,Cv is incorrect. Pierre
  2. pierreick

    Real or ideal cp/cv for orifice sizing

    Hi, Yes, must be real exponent k=Cp/Cv. You may want to use an EOS like Peng Robinson to calculate them. Pierre
  3. pierreick

    Dew point for RNG

    Another good reference: Gas conditioning and processing. Volume 1_ The Basic Principles by J.M Campbell
  4. pierreick

    U-bend before pump suction inlet.

    Hi, I don't think the diameter of the pipe is big enough to be a priming pot! http://www.rhodekpumps.com/priming-pot.html Pierre
  5. pierreick

    U-bend before pump suction inlet.

    Hi, weird design, troubles for sure. Pierre
  6. pierreick

    Process Chill Water Loop for Multiple Machines with varying requirement.

    Hi, nice bow ties on your drawing, kidding! You need to perform a full hydraulic study, 2 inches pipe for header is too small. Pressure on the return line should me manage (PCV) to ensure all users get sufficient enough water. My 2 cents Pierre
  7. pierreick

    Wet scrubber - what happens if you continue to re-circulate a scrubbing liquid?

    Hi George, It was also one of my questions (last post), should be hPa m3/mol. https://www.henrys-law.org/henry/ I believe the OP is a student ...... Pierre
  8. pierreick

    Two Pumps of Different Product and Ratings Pumping into a Common Header

    Hi, Agree with Snickster. Start from scratch! Why does this job not handle by the process engineer? Share with us a relevant sketch and process data, the way works engineers. This will save words and mitigate errors. Good luck Pierre
  9. pierreick

    Is there a comprehensive chemical odor threshold database?

    Hi, Some data about acrylic esters. Those materials, in particular EA, have a strong odor at very low concentration. Try this link: https://aiha-assets.sfo2.digitaloceanspaces.com/AIHA/aihaconnect/Educational-Books-Preview/Odor-Thresholds-for-Chemicals-43-PREVIEW.pdf another reference : Odor...
  10. pierreick

    Wet scrubber - what happens if you continue to re-circulate a scrubbing liquid?

    Hi, Did you hear about Google? https://www.kianresin.com/userfiles/files/eastman_Dimethylformamide%20(DMF).pdf many more data are available! Do you know that Henry's coefficient has a unit? Did you check the MSDS of your product and acceptable threshold for releasing this material to atmosphere...
  11. pierreick

    Compensating pressure in Cryogenic Storage Tank

    Hi, To add to my previous reply: https://www.pijttersen.nl/downloads/CO2%20Design%20Guide%202-9-2012.pdf. Take also a look at air Product paper, they mentioned coil pressure built up. You may want to contact them. Pierre
  12. pierreick

    Wet scrubber - what happens if you continue to re-circulate a scrubbing liquid?

    Hi, Probably good for you to review this document. If you don't add make up water, the level of water in the sump will decrease because the gas leaving the tower is saturated. You will damage the pump soon or later. Other consequences, viscosity, charge of pollutant, superficial tension will...
  13. pierreick

    Multiple cooling Tower equalization issue

    How are basins interconnected? weird to me. https://www.evapco.com/sites/evapco.com/files/2017-08/Cooling-tower-equalization-3-2016.pdf Pierre
  14. 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
  15. 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
  16. 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
  17. pierreick

    Subject: Dyke Wall Capacity Criteria as per NFPA/OGRA – Class-wise Tank Scenarios in General Plot Plan

    for your consideration. Pierre
  18. pierreick

    seasonal above ground water line for farm use

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

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

    Hi, Consider this document from manufacturer (Leser) about sound attenuation. Pierre
  20. 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

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