An Introduction to Dust Explosions

An Introduction to Dust Explosions

Understanding the Myths and Realities of Dust Explosions for a Safer Workplace

1st Edition - May 14, 2013
This is the Latest Edition
  • Author: Paul Amyotte
  • eBook ISBN: 9780123972637
  • Paperback ISBN: 9780123970077

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Description

Preventable dust explosions continue to occur in industry in spite of significant research and practice efforts worldwide over many years. There is a need for effective understanding of the unique hazards posed by combustible dust. This book describes a number of dust explosion myths – which together cover the main source of dust explosion hazards – the reasons they exist and the corresponding scientific and engineering facts that mitigate these circumstances. An Introduction to Dust Explosions describes the main erroneous beliefs about the origin and propagation of dust explosions. It offers fact-based explanations for their occurrence and the impact of such events and provides a critical guide to managing and mitigating dust explosion risks.

Key Features

  • Designed to prevent accidents, injury, loss of life and capital damage
  • An easy-to-read, scientifically rigorous treatment of the facts and fictions of dust explosions for those who need to – or ought to – understand dust explosions, their occurrence and consequences
  • Enables the management and mitigation of these critical industrial hazards

Readership

Process Engineers, Safety Engineers, Chemical Engineers, Mechanical Engineers in the Process Industries, Managers in the Process Industries, Safety Consultants.

Table of Contents

  • Dedication

    Preface

    Author

    Chapter 1. Introduction: Dust Explosions—Myth or Reality?

    1.1 Explosion Pentagon

    1.2 Dust Explosion Myths

    1.3 Why this Book?

    1.4 What do You Think?

    References

    Chapter 2. Myth No. 1 (Fuel): Dust Does Not Explode

    2.1 Dust Definition

    2.2 Determination of Dust Explosibility

    2.3 An Explosible Non-Explosible Dust

    2.4 Reality

    2.5 What do You Think?

    References

    Chapter 3. Myth No. 2 (Fuel): Dust Explosions Happen Only in Coal Mines and Grain Elevators

    3.1 Cyclical Interest in an Ever-Present Problem

    3.2 Magnitude of the Problem

    3.3 Reality

    3.4 What do You Think?

    References

    Chapter 4. Myth No. 3 (Fuel): A Lot of Dust Is Needed to Have an Explosion

    4.1 Guidance from Physics and Chemistry

    4.2 Practical Guidance

    4.3 Housekeeping

    4.4 Reality

    4.5 What do You Think?

    References

    Chapter 5. Myth No. 4 (Fuel): Gas Explosions Are Much Worse Than Dust Explosions

    5.1 Hazard and Risk

    5.2 Example: Likelihood of Occurrence and Prevention

    5.3 Example: Severity of Consequences and Mitigation

    5.4 Hybrid Mixtures

    5.5 Reality

    5.6 What do you Think?

    References

    Chapter 6. Myth No. 5 (Fuel): It’s Up to the Testing Lab to Specify Which Particle Size to Test

    6.1 Role of Particle Size Distribution

    6.2 Particle Size Effects on Explosibility Parameters

    6.3 A Cooperative Endeavor

    6.4 Reality

    6.5 What do You Think?

    References

    Chapter 7. Myth No. 6 (Fuel/Ignition Source): Any Amount of Suppressant Is Better Than None

    7.1 Inerting and Suppression

    7.2 Minimum Inerting Concentration

    7.3 Suppressant Enhanced Explosion Parameter

    7.4 Thermal Inhibitors

    7.5 Reality

    7.6 What do you Think?

    References

    Chapter 8. Myth No. 7 (Ignition Source): Dusts Ignite Only with a High-Energy Ignition Source

    8.1 Industrial Ignition Sources

    8.2 Standardized Dust Explosibility Testing

    8.3 Dust Cloud Ignition by Low-Energy Sources

    8.4 Reality

    8.5 What do you Think?

    References

    Chapter 9. Myth No. 8 (Ignition Source): Only Dust Clouds—Not Dust Layers—Will Ignite

    9.1 Dust Layer Ignition

    9.2 Dust Layer Fires

    9.3 Reality

    9.4 What do you Think?

    References

    Chapter 10. Myth No. 9 (Oxidant): Oxygen Removal Must Be Complete to Be Effective

    10.1 Limiting Oxygen Concentration

    10.2 Candidate Inert Gases

    10.3 Reality

    10.4 What do you Think?

    References

    Chapter 11. Myth No. 10 (Oxidant): Taking Away the Oxygen Makes Things Safe

    11.1 Nothing is Safe

    11.2 Introduction of New Hazards

    11.3 Management of Change

    11.4 Reality

    11.5 What do you Think?

    References

    Chapter 12. Myth No. 11 (Mixing): There’s No Problem If Dust Is Not Visible in the Air

    12.1 Primary and Secondary Dust Explosions

    12.2 Domino Effects

    12.3 Reality

    12.4 What do you Think?

    References

    Chapter 13. Myth No. 12 (Mixing): Once Airborne, a Dust Will Quickly Settle out of Suspension

    13.1 Dustiness

    13.2 Preferential Lifting

    13.3 Nano-Materials

    13.4 Flocculent Materials

    13.5 Reality

    13.6 What do you Think?

    References

    Chapter 14. Myth No. 13 (Mixing): Mixing Is Mixing; There Are No Degrees

    14.1 Turbulence

    14.2 Influence of Turbulence

    14.3 Concentration Gradients

    14.4 Reality

    14.5 What do you Think?

    References

    Chapter 15. Myth No. 14 (Confinement): Venting Is the Only/Best Solution to the Dust Explosion Problem

    15.1 Inherently Safer Design

    15.2 Hierarchy of Controls

    15.3 Dust Explosion Prevention and Mitigation Measures

    15.4 Reality

    15.5 What do you Think?

    References

    Chapter 16. Myth No. 15 (Confinement): Total Confinement Is Required to Have an Explosion

    16.1 Degree of Confinement

    16.2 Explosion Relief Venting

    16.3 Reality

    16.4 What do you Think?

    References

    Chapter 17. Myth No. 16 (Confinement): Confinement Means Four Walls, a Roof, and a Floor

    17.1 Congestion and Obstacle-Generated Turbulence

    17.2 Temporary Enclosures

    17.3 Reality

    17.4 What do you Think?

    References

    Chapter 18. Myth No. 17 (Pentagon): The Vocabulary of Dust Explosions Is Difficult to Understand

    18.1 Dust Explosion Terminology

    18.2 Gas Explosion Analogies

    18.3 Right to Know

    18.4 Reality

    18.5 What do you Think?

    References

    Chapter 19. Myth No. 18 (Pentagon): Dust Explosion Parameters Are Fundamental Material Properties

    19.1 A Quiescent Dust Cloud—The (Nearly) Impossible Dream

    19.2 The Mystical KSt Parameter

    19.3 Standardized Dust Explosibility Testing (Revisited)

    19.4 Reality

    19.5 What do you Think?

    References

    Chapter 20. Myth No. 19 (Pentagon): It Makes Sense to Combine Explosion Parameters in a Single Index

    20.1 USBM Indices

    20.2 Assessment and Management of Dust Explosion Risks

    20.3 Material Safety Data Sheets

    20.4 Reality

    20.5 What do you Think?

    References

    Chapter 21. Myth No. 20 (Pentagon): It Won’t Happen to Me

    21.1 Safety Culture

    21.2 Safety Management Systems

    21.3 Westray Coal Mine Explosion

    21.4 Reality

    21.5 What do you Think?

    References

    Chapter 22. Conclusion: Dust Explosion Realities

    22.1 Myths and Corresponding Realities

    22.2 What do you Think?

    References

    Index

Product details

  • No. of pages: 280
  • Language: English
  • Copyright: © Butterworth-Heinemann 2013
  • Published: May 14, 2013
  • Imprint: Butterworth-Heinemann
  • eBook ISBN: 9780123972637
  • Paperback ISBN: 9780123970077

About the Author

Paul Amyotte

Paul Amyotte
Since 2011 Dr. Paul Amyotte, P.Eng. has held the C.D. Howe Chair in Process Safety at Dalhousie University, where he is also a Professor of Chemical Engineering. Dr. Amyotte’s research and practice interests are in industrial safety and loss management, particularly in the areas of process safety and inherently safer design (ISD). He is an expert in the prevention and mitigation of dust explosions. He has written a book with us entitled An Introduction to Dust Explosions, and wrote the second edition of Process Plants: A Handbook for Inherently Safer Design in conjunction with Trevor Kletz. He has published or presented approximately 300 research papers, and is the editor of the Journal of Loss Prevention in the Process Industries. He is also a Past-President of the Canadian Society for Chemical Engineering, Engineers Nova Scotia, and Engineers Canada. Dr. Amyotte leads a comprehensive research team of undergraduate and graduate students as well as postdoctoral fellows working to advance process safety practice worldwide.

Affiliations and Expertise

Professor of Chemical Engineering and C.D. Howe Chair in Engineering, Department of Chemical Engineering, Process Engineering and Applied Science, Dalhousie University, Canada