RBI Components

About RBI Components

In Risk Based Inspection, you can divide equipment into components whose risk you want to analyze using an RBI Criticality Analysis. You can divide a piece of equipment into components based on shared degradation mechanisms. Each sub-part of the asset that shares the same degradation mechanisms will belong to the same RBI Component.

In GE Digital APM, the information related to an RBI component is stored in the following Criticality Calculator RBI Component records:

Criticality RBI Component - Cylindrical Shell
Criticality RBI Component - Exchanger Bundle
Criticality RBI Component - Exchanger Header
Criticality RBI Component - Exchanger Tube
Criticality RBI Component - Piping
Criticality RBI Component - Pump Compressor Casing
Criticality RBI Component - Tank Bottom
Criticality RBI Pipeline Segment (only if the Pipeline Management license is active)

The information related to a PRD component is stored in the following Criticality Calculator PRD Components:

Criticality PRD Component - Relief Valve
Criticality PRD Component - Rupture Disk

Heat Exchanger

Consider a Heat Exchanger, which is a piece of equipment that contains the following components:

A Cylindrical Shell that makes up the Heat Exchanger Shell section.
A Cylindrical Shell that makes up the Heat Exchanger Channel section.
Any number of small tubes that make up the Heat Exchanger Bundle section.

Each of the components can contain items such as Nozzles, Flanges, or Piping.

In RBI, to analyze the ways in which the exchanger can fail, you must divide the components into logical groups that represent common failure characteristics. Each group of components is a separate component and is represented by a single RBI Component record. Keep in mind that some of these groups are involved in the overhead system, and others are involved in the cooling water system.

For example, you might group the equipment's components as follows:

Heat Exchanger Shell: Includes a cylindrical shell, an inlet nozzle, an outlet nozzle, and a head, often referred to as a shell cover. The Shell is part of the Cooling Water System (blue) because the purpose of the shell is to allow water to flow over the tubes and cool the process fluid running through the channel and bundle section of the exchanger.
Heat Exchanger Channel: Includes a cylindrical shell, an inlet nozzle an outlet nozzle and a flat head, often referred to as a dollar plate. The Channel is part of the OVHD System (yellow) because the purpose of the Channel is to funnel the process fluid in to the tubes and allow cooling of the process fluid running through the channel and bundle section of the exchanger.
Heat Exchanger Bundle: Includes tubes, baffles, and a tubesheet. The Bundle is part of the OVHD System (yellow) because the purpose of the bundle is to provide as much surface area as possible for the process fluid in to the tubes and allow cooling of the process fluid running through the bundle section of the exchanger.

If you create an RBI Criticality Analysis using this example, your database contains the following records:

Unit / Area (Functional Location record)
Overhead System (Corrosion Loop record)
Cooling Water System (Corrosion Loop record)
Heat Exchanger (Equipment record)
Heat Exchanger Shell (Criticality Calculator RBI Components record)
Heat Exchanger Channel (Criticality Calculator RBI Components record)
Heat Exchanger Bundle (Criticality Calculator RBI Components record)

Note: If you have already created Functional Location records to represent the OVHD System and Cooling Water System using the recommended asset hierarchy, you must create additional Corrosion Loop records to represent these same systems. The existing Functional Location records need not be linked to the Corrosion Loop records.

About Integration with Thickness Monitoring (TM)

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

About Using TM Analysis Values at the Asset Level

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

About Using TM Analysis Values at the Thickness Monitoring Location (TML) Group Level

This topic has been intentionally excluded from the GE Digital APM product documentation website. This topic is available to you via the product documentation that is provided within the GE Digital APM system.

Access an RBI Component

Procedure

Access the Asset Summary workspace for the asset that contains the RBI Component that you want to access.

-or-

Access the Corrosion Loop that contains the RBI Component that you want to access.
Below the graph, select the link corresponding to the component that you want to access.

-or-

In the left pane, select the component that you want to access.

The workspace for the selected component appears, displaying the Component Overview section.
Select the Component Details tab.

The Component Details section appears, displaying the datasheet of the Component.

Note: If needed, modify values in the available fields, and then select to save your changes.

Create an RBI Component

About This Task

This topic describes how to create a new RBI Component and link it to an Asset or a Corrosion Loop. You can also link an existing RBI Component to an Asset or a Corrosion Loop.

Procedure

Access the Asset Summary workspace of the asset in which you want to create an RBI Component.

-or-

Access the Corrosion Loop in which you want to create an RBI Component.
In the left pane, select , and then select Create New Component.

The Create New RBI Component window appears.
Enter values in the following fields:
- Asset: This field is automatically populated with the asset for which you are creating an RBI Component.
- Component Family: Select the component family for the Component that you want to create.
- Component Type: Select the component type for the RBI Component that you want to create.
Select Create.

A new RBI Component is created, and is automatically linked to the selected Asset and the Corrosion Loop. The Component Details section appears, displaying the component datasheet.
Enter values in the available fields.
In the upper-right corner of the datasheet, select .

The changes made to the RBI Component are saved.

Results

The RBI Component inherits linked Potential Degradation Mechanisms from the RBI Corrosion Loop.

What To Do Next

Link Potential Degradation Mechanisms (PDMs) to an RBI Component.

Link RBI Components to an RBI Corrosion Loop

About This Task

This topic describes how to link existing RBI Components to an Asset or Corrosion Loop. You can also create a new RBI Component.

Procedure

Access the Corrosion Loop that you want to link to an RBI Component.
In the left pane, select , and then select Link Existing Component.

The Select RBI Components window appears, displaying a list of components in the same site that are not linked to a Corrosion Loop.
Select the check boxes that correspond to the components that you want to link, and then select Done.

The selected RBI Components are linked to the Corrosion Loop.

Results

The PDMs that are linked to the Corrosion Loop are linked to the RBI Components, in addition to the ones that are directly linked to the component.

What To Do Next

Link Potential Degradation Mechanisms (PDMs) to an RBI Component.

Unlink an RBI Component from an RBI Corrosion Loop

Procedure

Access the Corrosion Loop from which you want to unlink the RBI Component.
In the left pane, select the RBI Component that you want to unlink from the Corrosion Loop, and then select .

-or-

Below the graph, next to the RBI Component that you want to unlink from the Corrosion Loop, select the check box, and then select .

A message appears, asking you to confirm that you want to unlink the selected RBI Component.
Select Yes.

The RBI Component is unlinked from the selected Corrosion Loop.

Link Potential Degradation Mechanisms (PDMs) to an RBI Component

About This Task

If the RBI Component is linked to a Corrosion Loop, then all the PDMs linked to the Corrosion Loop are also linked to the Component. You can, however, link additional PDMs to the Component.

This topic describes how to link one or more PDMs to an RBI Component. You cannot create PDMs; you can only link them. Therefore, a PDM must already exist to be linked to an RBI Component.

Procedure

Access the RBI Component to which you want to link PDMs.
Select the Potential Degradation Mechanisms tab.

The Potential Degradation Mechanisms section appears, displaying a list of PDMs linked to the RBI Component.
Select Add PDM.

A list of PDMs appears, displaying the methodology type of each PDM.

Tip: If you select the link that corresponds to a PDM, the PDM record appears in Record Explorer on a new page.
Next to each PDM that you want to link to the RBI Component, select the check box, and then select OK.

Note: PDMs that can be used with an RBI 581 Risk Analysis contain a 581 prefix (e.g., 581-Amine Cracking).

The selected PDMs are linked to the RBI Component.

What To Do Next

Create an RBI Criticality Analysis.

Unlink a Potential Degradation Mechanism (PDM) from an RBI Component

Procedure

Access the RBI Component from which you want to unlink a PDM.
Select the Potential Degradation Mechanisms tab.

The Potential Degradation Mechanisms section appears, displaying a list of PDMs linked to the RBI Component.
In the row that contains the PDM you want to unlink from the RBI Component, select .

A message appears, asking you to confirm that you want to unlink the selected PDM.
Select Yes.

The PDM is unlinked from the RBI Component.

Link an RBI Component to a TML Group

Before You Begin

The value in the Source of Calculated Corrosion Rates field in the RBI Component must be Component.

Procedure

Access the RBI Component to which you want to link a TML Group.
Select .

The Manage TML Groups window appears.
Next to each TML Group that you want to link to the RBI Component, select the check box, and then select OK.

The selected TML Groups are linked to the RBI Component.

Results

An RBI Component linked to a TML Group inherits the TM corrosion rate values from the TML Group. If the component contains a Criticality Calculator Internal Corrosion Damage Mechanism Evaluation, the resulting damage factor value will be based on the corrosion rate determined by the value in the Selected Corrosion Rate field .

Apply an RBI Component

About This Task

When you apply an RBI Component, you make a copy of the original record. The applied RBI Component is not automatically linked to the original RBI Component's Corrosion Loop. Instead, the applied RBI Component can be linked to the same or a different asset and then to a Corrosion Loop.

Procedure

Access the RBI Component that you want to apply.
In the upper-right corner of the page, select .

The Hierarchy Finder window appears.
Navigate through the Hierarchy Finder to select the asset to which you want to apply the RBI Component.
Select OK.

The RBI Component is applied to the selected asset.

What To Do Next

Link RBI Components to an RBI Corrosion Loop

Delete an RBI Component

Before You Begin

Procedure

Access the Asset Summary workspace of the asset that is linked to the RBI Component that you want to delete.

-or-

Access the Corrosion Loop that is linked to the RBI Component that you want to delete.
Next to the Component what you want to delete, select the check box next, and then select .

A message appears, asking you to confirm that you want to delete the selected RBI Component.
Select Yes.

The RBI Component is deleted, and all links to existing related entities are removed.