Effective Emergency Relief System (ERS) design helps companies meet risk-management goals, compliance requirements, and sound business practices. ioMosaic provides a total ERS solution with our comprehensive ERS design services, from reactivity testing for design basis determination to calculations for Z-axis deflection from dynamic loads.
Our team has decades of experience performing PRFS analysis and design.
Our risk-based approach helps mitigate near-unventable scenarios to a tolerable level of risk.
Better evaluate hazards in your facility with an accurate process simulation.
Delivering properly designed pressure relief systems that save both money and time.
Reasonable estimates of the expected time to failure (ettf) or expected time to yield (etty) are required and necessary for effective risk management as well as effective emergency and fire protection and response. Read this paper for a demonstration of calculating ettf or etty in fire exposure scenarios with Process Safety Office® SuperChems™.
PRV stability, inlet pressure drop and built-up backpressure, should be evaluated at the rated capacity of the PRV. The rated capacity of the PRV corresponds to a specific overpressure, which is 10% of the set pressure or 3 psi, whichever is greater, for ASME VIII certified relief devices. Evaluating PRV stability at overpressure other than that for which the PRV is certified may lead to missed opportunities for improvement. Whether designing new or evaluating existing pressure relief systems it is important to use the correct basis for PRV stability (inlet and outlet pressure loss) calculations. Using the incorrect basis can raise concerns where there are none and, conversely, overlook potential concerns. A common miscue is using the allowable accumulation as a basis for PRV capacity calculations and subsequent stability analyses.
This PSE module performs efficient tracking of process safety related data and analysis. A customized workflow allows for a specific operating unit or the entire facility to be studied and evaluated for compliance.
A large U.S. company in the oil and gas industry needed to evaluate their protective relief systems in a unit of abnormal operation in which a reactor in a two-stage reactor system was to be bypassed. The client wanted to have the capabilities to safely bypass either of the reactors while not having to shut down the entire unit. Read this case study to find out how we delivered solutions that empowered the client to confidently bypass either reactor without unit shutdown, safeguarding continuous operations.
Jun 1, 2025
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Dec 1, 2024