Process safety - 2014

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Class date(s): 10 November
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Readings and resources

  • The CBS video we watched in class can be downloaded and found on the CBS website.
  • These notes from Chapter 5 from a book that Dr. Marlin is writing, and he has kindly allowed us to use it in 4N4.

Class slides, videos, and other resources

Scroll down, if necessary, to see the materials.

Date Class number Topic Slides for class Video and audio files References and Notes
10 November 11A

In this class we start with an overview of the Safety topic.

Slides

Video Audio

The publisher of the [famous safety text by Crowl and Louvar] has posted the first chapter for free. Take a look at page 8 and 9 for the FAR values of various industries, showing dates and the improvements made in safety over the past few decades.

12 November 11B

This next class we consider the layers of safety protection in a plant.

Slides

The video sound was corrupted; I might be able to rescue the video later, but there are other priorities at the moment. Audio
14 November 11C

We finished the BPCS layer (valve failure) and then considered the Alarms and SIS sections in the safety hierarchy.

Slides

Video Audio
  • This P&ID shows a fail closed valve with the usual bypass that you know well. However, there is an interesting addition and the last picture on the page shows a 3D rendering of what it would look like in practice.
17 November 12A

We consider the SIS and relief layers.

Slides

Video No audio recording.
  • This P&ID shows a fail closed valve with the usual bypass that you know well. However, there is an interesting addition and the last picture on the page shows a 3D rendering of what it would look like in practice.
  • The solution to the SIS design presented in the prior class:

CSTR-with-SIS-coloured.png

Click on image for larger version

21 November 12C

We looked at HAZOP analysis.

Slides - we will look at slides 13 onwards; slides 1 to 12 are for self-study.

Video Audio
  • A full HAZOP for the fired heater is presented in the notes for Chapter 5 from a book that Dr. Marlin is writing, and he has allowed us to use it in 4N4.