Learn the latest process risk assessment technique for process control
Layer of protection analysis (LOPA) is a semiquantitative tool for analysing and assessing risk on a process plant. It uses an order of magnitude technique to evaluate the adequacy of existing or proposed layers of protection against known hazards. LOPA typically builds on the information developed during a qualitative hazard evaluation, such as a process hazard analysis (PHA), and can be used to meet the risk assessment requirements of IEC 61508 and 61511.
This course covers the basic methodology of LOPA and the detailed stages of its application. Participants are shown how significant scenarios are identified and how frequencies are estimated for the worst-case events. They are shown how to assign risk categories and therefore determine the number of independent protection layers (IPLs) that should be in place. The specification and requirements for a protection layer to be accepted as an IPL are discussed. All the essential steps in this method are practised in workshops, including the use of software tools in LOPA.
history and methods
LOPA methodology, other methods,matrices and charts
what do the competent authorities expect?
severity estimation and targets
initiating events and frequencies
independent protection layers
other safety-related protection systems
example spreadsheet tools for study
uncertainties and sensitivities
cautions on using LOPA
when LOPA is done – managing/operating a safety instrumented system
Who will benefit
Process design engineers
Process programmers and instrument control designers
You will learn
the basic methodology of LOPA
how to decide if a process needs a safety instrumented system (SIS)
if yes, what safety integrity level (SIL) does it need?
how to define an independent protection layer (IPL)
how to implement a process to manage these systems through the life cycle of an installation
Registration for this course is via the IChemE website.The cost quoted below is in NZD for non-IChemE members. There are special rates available for IChemE members.
This course covers the basic methodology of LOPA and the detailed stages of its application. Participants are shown how to identify significant scenarios, estimate frequencies for the worst-case events and how to assign risk categories. Safety Solutions delivers this course on behalf of IChemE and registration is only possible through IChemE.