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Informationen zum Autor Since 1985, the Center for Chemical Process Safety (CCPS) has been the world leader in developing and disseminating information on process safety management and technology. CCPS, an industry technology alliance of the American Institute of Chemical Engineers (AIChE), has published over 80 books in its process safety guidelines and process safety concepts series, and over 100 training modules through its Safety in Chemical Engineering Education (SACHE) series. Klappentext The book is a guide for Layers of Protection Analysis (LOPA) practitioners. It explains the onion skin model and in particular, how it relates to the use of LOPA and the need for non-safety instrumented independent protection layers. It provides specific guidance on Independent Protection Layers (IPLs) that are not Safety Instrumented Systems (SIS). Using the LOPA methodology, companies typically take credit for risk reductions accomplished through non-SIS alternatives; i.e. administrative procedures, equipment design, etc. It addresses issues such as how to ensure the effectiveness and maintain reliability for administrative controls or "inherently safer, passive" concepts. This book will address how the fields of Human Reliability Analysis, Fault Tree Analysis, Inherent Safety, Audits and Assessments, Maintenance, and Emergency Response relate to LOPA and SIS. The book will separate IPL's into categories such as the following: Inherent Safety eliminates a scenario or fundamentally reduces a hazard Preventive/Proactive prevents initiating event from occurring such as enhanced maintenance Preventive/Active stops chain of events after initiating event occurs but before an incident has occurred such as high level in a tank shutting off the pump. Mitigation (active or passive) minimizes impact once an incident has occurred such as closing block valves once LEL is detected in the dike (active) or the dike preventing contamination of groundwater (passive). Zusammenfassung The publication provides process automation engineers! process engineers! facility operators! and safety professionals with the appropriate treatment and requirements applicable to equipment design! administrative procedures! or other credits that are treated as an independent protection layer from a Layer of Protection Analysis (LOPA) perspective. Inhaltsverzeichnis List of Data Tables xi Acronyms and Abbreviations xv Glossary xix Acknowledgments xxv Preface xxix Introduction 1 1.1 Audience 2 1.2 Scope 3 1.3 Key Changes Since the Initial LOPA Concept Book 4 1.4 Recap of LOPA 6 1.5 Disclaimer 10 1.6 Linkage to Other CCPS Publications 11 1.7 Annotated Description of Chapters 13 Overview: Initiating Events and Independent Protection Layers 16 2.1 LOPA Elements: An Overview 16 2.2 Management Systems to Support LOPA 16 2.3 Scenario Selection 18 2.4 Overview of Scenario Frequency 20 2.5 Overview of Consequences 28 2.6 Risk Considerations 29 2.7 Conclusions 31 Core Attributes 34 3.1 Introduction to Core Attributes 34 3.2 Independence 35 3.3 Functionality 40 3.4 Integrity 47 3.5 Reliability 49 3.6 Auditability 52 3.7 Access Security 53 3.8 Management of Change 54 3.9 Use of Data Tables 55 Example Initiating Events and IE Frequencies 58 4.1 Overview of Initiating Events 58 4.2 Inherently Safer Design and Initiating Event Frequency 59 4.3 Specific Initiating Events for Use in LOPA 60 4.4 External Events 113 4.5 What if Your Candidate Initiating Event is Not Shown in ...
