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  1. chemengbr

    API 520 D.2.2 (Sub-cooled liquid)

    While creating an automated spreadsheet to perform sub-cooled PSV sizing,I noticed that per API 520, equation D.9 can be used for all cases highlighted in section D.2.2 (multi-component systems with nominal boiling range less than 150°F or single-component systems far from the critical point...
  2. chemengbr

    Gas Critical Flow Across Orifice

    I have been working on finding steam flow across an orifice, as this flow will dictate the relief requirements for a relief valve down stream of the orifice. Therefore, I decided to create my own excel calculator to be very detailed, so that future engineers can see how I arrived at my numbers...

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