Overpressure Protection

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

Things are getting more and more interesting! You have defined the relief scenarios and determined the relief loads, now it is time to see the various types of Relief Devices and decide that with which one you will continue your job. This lecture will let you discover:

• Three common types of Relief Valves;

• Utilization of Ruptured Disk and

• The comparison between Relief Valve and Ruptured Disk and their combination

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