Understanding Safe and Dangerous Failures in Funcitonal Safety
A safe failure of a Safety Instrumented Function (SIF) results in the system being placed in a safe state, such as an emergency stop, even if the SIF fails to
Health, Safety and Environment
How Process Safety Management Prevents Catastrophe
Process Safety Management (PSM) is a system used to stop major accidents in industries that deal with dangerous materials. It focuses on being prepared, managing risks early and making the
Introduction to Process Safety: What You Must Know!
Imagine a chemical plant, where a single overlooked valve or ignored pressure reading could spark a catastrophic explosion. Process safety is the critical discipline that prevents such disasters in high-risk
Safety Manual of SIS
Each item of hardware for use in the Safety Instrumented System (SIS) must have an accompanying safety manual provided by the manufacturer. This manual contains all the necessary information required
Documenting SIL Assessment Study
Safety Integrity Level (SIL) assessment is a crucial part of ensuring process safety in industrial environments. Typically conducted in a dedicated workshop, this assessment helps determine the required SIL targets
Understanding the Safe State of SIF
What is the Safe State? In process safety, achieving a safe state is a fundamental objective of any Safety Instrumented Function (SIF). The safe state is the condition in which
Redundant Sensors in Safety Instrumented Functions (SIF)
Understanding Redundant Sensors in SIF In a single Safety Instrumented Function (SIF), multiple sensors may be deployed, each capable of independently detecting a dangerous situation. The most common configuration is
Pressure Relief Devices as an Independent Protection Layer
Pressure relief devices (PRDs) play a crucial role in maintaining process safety by preventing overpressure conditions that could lead to catastrophic equipment failures. PRDs include pressure relief valves (PRVs), vacuum
Alarms with Operator Response as an Independent Protection Layer
Alarms with operator response can serve as an Independent Protection Layer (IPL) with a Probability of Failure on Demand (PFD) of 0.1, provided that independence requirements are met. However, if
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Designing of Fired Heater
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What is the difference between reliability and integrity?
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Meaning of Reliability Term
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Hardware Safety Integrity Architectural Contraints
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Black-box functionality testing
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Fixed program language FPL
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Fixed program language FPL
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Limited variability language LVL
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Full Variability Language (FVL)
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List of Abbreviations Used in IEC 61511
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Relationship of Fault Tree and Event Tree with Bow Tie
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Hydrogen Purity during Sulfiding of Hydrotreating Catalyst
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Risk Receptor Meaning
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Risk Receptor Meaning
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Designing of Fired Heater
