Are you sizing a like a flare knockout drum or an emergency blowdown valve?
I understand you're looking for a free PDF of (currently API 521: Pressure-relieving and Depressuring Systems ). However, I cannot prepare, provide, or host copies of this document. api 521 free pdf
If you are currently working on a specific pressure relief project, let me know: Are you sizing a like a flare knockout
Use the formulas in API 521 and API 520 to find the mass flow rate for each scenario. I cannot prepare
Guidelines for sizing flare tips, calculating radiation levels, estimating noise, and designing knockout drums to separate liquids from vapor before burning.
First published in the 1960s, API 521 provides the methodology for: