HAZOP-Study-Training • A guide-word-supported qualitative technique to motivate thinking about how deviations from intended operating conditions might become hazardous or operability problems.

HAZOP

1. HAZOP Study Training This presentation provides an in-depth understanding of Hazard and Operability (HAZOP) studies, a crucial technique for ensuring process safety and enhancing operational efficiency in industrial facilities. by Bishnu Prasad Jena

2. Introduction to HAZOP 1 What is HAZOP? A structured and thorough technique for identifying potential hazards and operability issues in industrial processes. 2 Why HAZOP? To ensure regulatory compliance, prevent accidents, and improve process design and modifications.

3. Objectives of HAZOP 1 Key Objectives Identify potential hazards, examine operability issues, assess the impact of deviations, and recommend mitigation solutions.

4. When to Conduct a HAZOP Study 1 New Facility Design Conduct HAZOP studies during the design phase to ensure inherent safety. 2 Process Modifications Perform HAZOP reviews prior to major changes in an existing process. 3 Continuous Monitoring Regularly review operations to maintain safety and optimal performance.

5. HAZOP Team Composition Core Members Process Engineer, Operations Personnel, Safety Engineer, Maintenance Staff, Instrumentation and Control Engineer, HAZOP Facilitator Importance of Diversity Bringing together various perspectives ensures a comprehensive analysis and identification of potential issues.

6. Key Concepts in HAZOP 1 Nodes Sections of the process being studied during the HAZOP analysis. 2 Parameters Variables like flow, temperature, pressure, and other critical process characteristics. 3 Guidewords Standard words used to identify potential deviations from normal operating conditions. 4 Deviations Changes from design intent that can lead to hazards or operational issues.

7. Guidewords and Parameters Guidewords Meaning Example Parameters No Absence of a parameter No Flow More Increase in parameter High Pressure Less Decrease in parameter Low Temperature Reverse Opposite direction Reverse Flow As well as Additional elements Contaminants

8. HAZOP Methodology Step 1 Select the process and divide into nodes. Step 2 Identify key parameters for each node. Step 3 Apply guidewords to each parameter. Step 4 Identify potential deviations. Step 5 Analyze causes and consequences of deviations. Step 6 Recommend actions to mitigate risks.

9. HAZOP Example Process Node Reactor Parameter Flow rate Guideword "No" (No flow) Deviation No feed to the reactor Cause Pump failure Consequence Reactor pressure rise, risk of explosion Action Install redundant pump and pressure relief system

10. Tools for Conducting HAZOP P&ID Piping & Instrumentation Diagrams Process Flow Diagrams Visualize the process and its components Operational Data Utilize historical information and trends HAZOP Worksheets Record findings in a structured format