Who should take the course?

1. Process engineers

2. Control room operators

3. Chemical engineers

4. Instrument engineers

5. Mechanical engineers

Part 1: Scenarios and Relief Load Calculation

Chapter 1: Process Description

Chapter 2: Scenarios – EIEPD Equipment-Based Approach

In this chapter/sessions, different scenarios suggested by API-521 are discussed but with a practical approach so that process engineers can easily detect/recognize scenarios for the whole units in a process plant. The common scenarios discussed are fire scenario, control valve failure scenario, heat exchanger tube rupture scenario, hydraulic expansion and reflux failure scenario.

Chapter 3: EIEPD Methodology-Based Relief Load Calculation

Relief load calculation for fire scenario:

Example 1: Relief load calculation for fire unwetted-scenario using Aspen Hysys and sizing excel-sheet.

Example 2: Relief load calculation for fire unwetted-scenario using sizing excel-sheet.

Example 3: Relief load calculation for wetted-scenario using Aspen Hysys and sizing excel-sheet.

Example 4: Relief load calculation for wetted-scenario using Aspen Hysys and sizing excel-sheet.

Relief load calculation for control valve related scenario:

Example 5: Relief load calculation for control valve failure scenario using Aspen Hysys

Example 6: Relief load calculation for closed-outlet for ID fan steam turbine.

Example 7: Relief load calculation for closed-outlet for FD fan steam turbine.

Example 8: Relief load calculation for closed-outlet for steam-drum.

Example 9: Governing scenario example

Example 10: Relief load calculation for inadvertent valve opening scenario.

Relief load calculation for tube rupture scenario:

Example 11: Relief load calculation for heat exchanger tube-rupture using Aspen Hysys and sizing excel-sheet (Category 1)

Example 12: Relief load calculation for heat exchanger tube-rupture using sizing excel-sheet (Category 1)

Example 13: Relief load calculation for heat exchanger tube-rupture using sizing excel-sheet (Category 1)

Example 14: Relief load calculation for reboiler tube-rupture using sizing excel-sheet (category 2)

Example 15: Relief load calculation for reboiler tube-rupture using sizing excel-sheet (category 2)

Relief load calculation for hydraulic expansion:

Example 16: Relief load calculation for first water-cooled heat exchanger

Example 17: Relief load calculation for second water-cooled heat exchanger

Example 18: Relief load calculation for third water-cooled heat exchanger

Relief load calculation for reflux failure:

Example 19: Relief load calculation for first tower reflux failure

Example 20: Relief load calculation for second tower reflux failure

Chapter 4: Individual Overpressure Causes and Their Relieving Rates – Based on API-521 (4.4)

In this chapter the API pages are scrutinized and the followings are discussed in greater depth. While previous chapter is equation-based, this chapter is concept-based.

4.1-Closed outlet

1. Description
2. Consideration for pumps
3. Consideration for reciprocating compressors
4. Relieving rate estimation

4.2-Cooling or reflux failure

1. Description
2. Relieving rate estimation for total condensing
3. Relieving rate estimation for partial condensing
4. Relieving rate estimation for air cooler fan failure
5. Relieving rate estimation for louver closure

4.3- Accumulation of non-condensables

4.4-Overfilling

1. General
2. Mitigation measures
3. Level instruments

4.5-Abnormal process heat or vapor input

1. Inadvertent valve opening
2. Check valve leakage or failure

4.6-Hydraulic expansion

1. Causes
2. Sizing and set pressure
3. Special cases

4.7-Fire

1. General
2. Open pool fire
3. Fire relief loads
4. Air-cooled heat exchangers
5. Jet fire

4.8-Heat transfer equipment failure

1. Shell and tube heat exchangers
2. Double-pipe heat exchangers
3. Plate-and-frame, Spiral-plate, and Welded-block Heat Exchangers

4.9-Utility Failure

1. Electric power failure
2. Loss of heat

Part 2: Pressure Relief Device Types and Orifice Sizing

Chapter 5:

1.Conventional PRVs

2.Balanced PRVs

3.Pilot-operated PRVs

4.Cold Differential Test Pressure (CDTP)

5.Restricted lift pressure-relief valves.

6.Rupture disk device

Chapter 6: Procedure for sizing

1.API Effective Area and Effective Coefficient of Discharge

2.Backpressure

3.Relieving pressure

4.Sizing for critical flow-Example 1

5.Sizing for subcritical flow-Example 2

6.Sizing for steam relief-Example 4

7.Sizing for liquid relief requiring capacity certification-Example 5

8.Sizing for liquid relief requiring capacity certification-Example 6

Chapter 7: Methanol Project Examples-continued

In this chapter orifice sizing for previous examples are performed.

Part 3: Construction, installation and material selection notes

Chapter 8:

1.PRD location

2. Inlet Piping Requirements
3. Discharge Piping
4. PRV Stability
5. PRD Isolation (Stop) Valves

6. Material selection

Part 4: Flare Header Sizing

Chapter 9:

1. Flare header summary development

2. Flare header sizing using Aspen Flarenet

The PFD and P&ID Development using Auto-cad P&ID course will be introduced to engineering community in only one time-set. For each group maximum 25 registrations are allowed, aiming to keep the quality high.

Group A

Tuesdays and Fridays at 20.15-22.45 Tehran Time from 13 February onwards. The course will end on 22 March 2024.

Duration: 30 hr.

Notice: If the selected times are not suitable for you, you can register for offline videos.

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