The Process Superintendent at a large specialty chemical manufacturing complex had over 600 open action items that were past due and needed direction on how to close them. The action items were assigned to the unit engineers who were unable to dedicate the necessary time.
Topics: Action Item Resolution, Case Study, Refinery, PSM, PSM Review, PSM Audit, Mitigation
Have you come across a conventional pressure relief valve relieving to a flare header? Did you know that, under certain circumstances, you need to verify if the Cold Differential Test Pressure (CDTP) is properly compensated for the superimposed backpressure from the flare header?
Topics: Did You Know?, Pressure Relief Valves, Flare Header, API 521, PRV, Cold Differential Test Pressure, CDTP, Relief Header, Set Pressure
After reading about flare header failures due to high velocities, an owner of a production platform in the Middle East wanted to ensure that the initial inerting/purging of the platform and pipeline would not result in flare header piping failure. Smith & Burgess was hired to review the flare systems for safe operation under the high flow rates associated with the initial facility start-up.
Topics: Flare Mitigation, Flare Analysis, Flare Study, Detailed Engineering, Case Study, Flare System, Engineering Review, Flare Management, Flare Optimization, Engineering Analysis, Rate Increase, API 521
A major United States refinery was recommended by an EPC to install a new flare worth approximately $60 Million. Unsatisfied with the EPC's recommendations, the refinery asked Smith & Burgess to perform a third-party review to verify their results.
Topics: Flare Mitigation, Flare Analysis, Flare Study, Case Study, Flare System, Refinery, Engineering Review, Flare Management, Flare Revalidation, Third Party Review, Flare Optimization, Overly Conservative Assumptions, Engineering Analysis
Liquid-certified devices are mechanically designed and sized by an engineer to relieve liquid. Per UG-125 of ASME Section VIII, "Vessels that are to operate completely filled with liquid shall be equipped with pressure relief devices designed for liquid service, unless otherwise protected against overpressure."
Topics: Did You Know?, Pressure Relief Valves, API 521, PRV, Liquid Service PSV
