Initiating events and independent protection layers |
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| Authors: | John F Murphy Wayne Chastain William |
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| Institution: | 1. Process Safety Services, Punta Gorda, FL 33983, and CCPS Staff Consultant;2. Engineering Associate, Plant Protection Technical Services, Eastman Chemical Company, Kingsport, TN 37660;3. Process Improvement Institute, Inc., 1938 Riversound Drive, Knoxville, TN 37922 |
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| Abstract: | Layer of protection analysis (LOPA) is a semiquantitative tool for analyzing and assessing process risk. The tool has grown greatly in popularity and usefulness since the publication of the first CCPS/AIChE guidebook on the subject, Layer of Protection Analysis, Simplified Process Risk Assessment (LOPA). This article is a summary of a new CCPS guideline book that includes the following: - Initiating events (IEs).
- Independent protection layers (IPLs).
- Criteria for identifying the value of each prospective IE and prospective IPL.
- Example IE and IPL data.
This book is a necessary reference for those applying the LOPA methodology. © 2009 American Institute of Chemical Engineers Process Saf Prog, 2009 |
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| Keywords: | layers of protection LOPA risk risk assessment initiating events independent protection layers |
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