Chemical/Process Safety Engineering: BOOTCAMP 2021

In the first lecture of Process Safety perspectives in Engineering, you will learn about:

• ISD (Inherently Safer Design) philosophy

• 4 key principles of ISD

Even if you don’t know how to tie a tie, you have to have information about bowtie as an engineer. This lesson teaches you:

• Theory behind Bowtie diagram. Swiss cheese model

• What Bowtie diagram is

• Example related to Bowtie diagram

Haven’t you watched our first 2 lectures yet? In this lecture, we will quickly review them and will talk about:

• Process Control and control hazards

• Common control issues

• Prevent, Control, and Mitigation Systems

Plant Layout is an important and critical aspect of chemical process industries operations, but it is rarely taught as a unit of chemical engineering courses. We covered valuable information in this lesson for you! Click, watch the video and enjoy the lesson covering:

• Optimization of Plant layout using SLP (safety and loss prevention)

• Plant Layout consideration

First lesson of "Process Safety in Operation" course provide information about:

• Process Safety Management and its phases

• 4 “C” approach (Control, Communication, Co-operation, Competence)

Till here, if you aren’t aware of importance of Process Safety, you must not miss the last lecture, because we are going to give information about:

• Texas incident

• Key steps of Process Safety Performance

• Process Safety Performance Indicators and near misses

• Strategies of maintenance

The necessity of Overpressure Protection and utilization of Relief Systems is undeniable that also reveals the need for correct documentation if required. Referring to this, the first lecture will be dedicated to:

• The question of "What is Pressure Relief?";

• A Statistical Analysis on the need for the installation of relief devices;

• Management of change in Risk Management;

• Pressure Relief Life Cycle;

• Why is documentation important? and

• Minimum Documentation Requirements

The second step you need to go for is understanding the codes and standards that should be followed. Because the safer operation is directly related to them and they can be beneficial for carrying out the remarkable means of Relief Device and System Installation. In this lecture, we will go through:

• Codes and Standards;

• Why do we need them?;

• Hierarchy of Regulations and

• Legislation and International Standards

After getting into the details of API standards, you can give a turn to the design philosophies and methods where you will see the essential steps for relief device selection and sizing, as well as, various methods to deliver high quality operation. This session aims to deliver the comprehensive information about:

• Concept of Overpressure Protection;

• The comparison between Relief and Blow-down;

• Typical Philosophy Contents;

• Inherently Safer Design and 2M2S principle;

• Safety Instrumented Systems (SIS) and

• The comparison between SIS and Relief Systems

Everything goes well: You have got the introduction to the documentation, codes and standards and learned about the design philosophy and its contents, now in this session, we will get into the Relief Scenarios by looking through the following topics:

• Relief Design Steps;

• The definition of Pressure System;

• Importance of Boundaries;

• Identifying Relief Scenarios and

• The principle called "Double Jeopardy"

After defining the possible relief scenarios, determining relief loads will become very essential where we have decided to put more information about Low Pressure Storage Tanks and their venting. Here in this lecture, you will learn the valuable information about:

• API620 0-15 PSI Storage Tanks;

• API620 0-2.5 PSI Storage Tanks;

• Types of Roof Construction;

• Steps in Tank Vent Sizing and

• Overfilling and Vacuum Scenarios

Consideration of single or multi-phase flow within the equipment is one of the most important tips for appropriate relief device sizing. So that, this lecture is dedicated to Single and Multi-phase Flow Relief Sizing that comprises the following topics inside:

• Sizing methods for single phase flow;

• Sizing methods for multi-phase flow;

• Flow types to consider and

• Sizing steps

More practical topics are coming for you in this section where we start with the installation of the relief device. This is the first part of the installation as this procedure is quite detailed to describe. Here in this session, you will mainly be informed about Inlet and Outlet Piping and will get into the details of other following topics:

• Piping Installation;

• Excessive Inlet Pressure Losses;

• Complicated Inlet Piping and

• Outlet Piping

Let's turn to the second part for installation as this procedure is quite detailed to describe. Here in this session, you will mainly be informed about the location of PRV and installation problem and will get into the details of other following topics:

• Location of Installed SRV;

• Reaction Forces and Bracing and

• Common Installation Problems

One more necessary steps that should be covered is Segregation in Flare and Venting Systems which takes an action after installation of relief device. In this session, you will go over:

• Part of Segregation;

• Hydrate Prediction Methods;

• Stream Segregation and

• Matrix for mixing

The Flare Header Design as one of the last significant may look like Consequence Modelling comprising almost the same steps in its design principle. In this part for Flare Header Design, you will mainly work with liquid removal and its dispersion that are delivered by the following topics:

• Liquid Removal and General Requirements;

• Liquid Residence Time;

• Dispersion Modelling and

• Thermal Radiation

The Flare Header Design as one of the last significant may look like Consequence Modelling comprising almost the same steps in its design principle. In this part for Flare Header Design, you will mainly work with flare types and the factors influencing them that are delivered by the following topics:

• Types of Flares;

• Factors influencing Flare Design;

• Elevated and Ground Flare Systems;

• Flare Gas Recovery System and

• Smoke Control and Husa Correlation

The last topic you will need to go for understanding the overall concept in detail is depressurisation. This lecture will mainly focus on Relief Devices and Blow-down that is provided by the following topics:

• Relief vs Blow-down Systems;

• Emergency and Operational Depressurisation;

• Depressurisation System Setup;

• Depressurisation Calculations and

• Blow-down Loads