European Master and Certification Program
in Risk Engineering and Management

IIIB-R09 ExP
Explosion Protection

Course code: 136479 (SEM)
Language of instruction: English
Duration of the course: 5 days (45h)
Lecturers: Prof. Dr. Aleksandar S. Jovanovic (Steinbeis Advanced Risk Technologies GmbH)
Assessment: Written Exam Transfer Paper [optional topic for Project Study Paper]

Short description

The EU directive ATEX is presented in details, along with the principles of explosion prevention and protection. Its practical application in the industrial plants is explained on a series of real life examples.

Objectives

The course aims at increasing the knowledge in the field of explosion protection and modeling, especially gas and vapor explosion, as well as gas dispersion modeling, using examples for applied methods

EU directive ATEX is presented in details, along with the principles of explosion prevention and protection adopted in this directive. Its practical application in the industrial plants is explained on a series of real life examples.

In the end of the course a student will know:

  • explosion characteristics and standardized methods to determine them
  • basic principles of explosion prevention and protection
  • details about ATEX directive requirements and application

Target Attendees / Participants

  • Engineers from the Private and the Public sector
  • Law makers
  • Health, Safety and Environmental practitioners
  • Academics and Researchers from Industry
  • Design/Operations/Maintenance staff from all sectors
  • Project Management
  • HSE/Risk assessment/Safety consultant  

Course Content by Units

Unit1: ATEX-Directives and explosion characteristics

  • ATEX Directive 94/9/EC
    • Hazardous area classification - principles
    • Risk analysis- principle
    • Explosion protection document
  • Explosion characteristics
    • Explosion mechanisms and consequences
    • Explosion properties of flammable gases, liquids and dusts
    • Standardized methods to determine explosion properties
    • Safety characteristics of flammable gases, liquids and dusts
Unit 2: Explosion prevention
  • Preventive measures - Principles
  • Protection measures - Principles
  • Sources of ignition, hot surfaces, mechanical sparks, temperature classes, ignition energy, smouldering combustion
  • Hazardous area classification for gas and dust
  • Electric equipment: Functional principles and particularities of the types of protection – gas (Ex-d, e, q, m, o, p, i, n) – dust (tD, mD, pD, iD)
  • Requirements non-electrical equipment
  • Marking of ATEX-products acc. to directive and standards
  • Risk analysis with example
  • Explosion protection document, proposal of contents
Unit 3: Explosion protection
  • Explosion venting
  • Explosion suppression
  • Containment
  • Explosion isolation
Unit 4: Modeling of Gas Explosions
  • Explosion mechanisms
  • Modeling explosion venting:
    • Simple models;
    • Phenomenological models;
    • CFD models;
    • Probabilistic analysis
  • Modeling of blast generated by vapor cloud explosions
    • TNT
    • ME-method/Baker-Strehlow
    • CFD models
    • Probabilistic analysis
Unit 5: Modeling of Gas Dispersion
  • Emission
    • Two-phase flow,
    • Vessel blowdown,
    • Vessel rupture, Vaporization
  • Dispersion
    • Jets and plumes,
    • Dense gas dispersion,
    • CFD models
Unit 6: Case Studies of Accidents caused by Gas and Dust Explosions
  • Electrostatic hazards basics and prevention,
  • Live Dust Explosion Demo
Unit 7: Review of main course issues and preparation for the final exam

Unit 8: Final exam
  • Teaching Methods

    The course includes:

    • introductory note explaining aim and structure of the course, and used methodology as well
    • ex cathedra lecturing illustrated by number of examples
    • case studies allowing students to understand problems and solutions
    • several collective exercise
    • preparation for final exam by repetition of all course units and main issues
    • final exam

    Literature

    1. Textbook:
      Explosion Protection and Modeling
      Version 2, January 2010
    2. Transparencies:
      Unit1: ATEX-Directives and explosion characteristics
      Introduction – Dust Explosion
      Introduction – Gas Explosion
      Production Directive
      User Directive
      Dust Explosion – Test Methods
      Unit 2: Explosion prevention
      Preventive Methods
      Hazardous Area Classification
      Hazardous Area Classification for Dust
      Ignition Sources
      Unit 3: Explosion protection
      ATEX – Electrical Standards
      ATEX – Requirements for Mechanical Equipment
      ATEX – Constructional Explosion Protection
      ATEX – Risk Analysis
      ATEX – Explosion Protection Documents
      ATEX – Examples, Gas Explosion
      ATEX – Examples, Dust Explosion
      Unit 4: Modeling of Gas Explosions
      Gas Exlosion Basics
      Gas Explosion Venting
      Vapor Cloud Explosion, Prediction and Analysis
      Examples of Vapor Cloud Explosion Accidents
      Gas Explosion Mitigation
      Gas Explosion Effects
      Emission
      Flacs
      Gas detonation
      Gas dispersion
      Unit 5: Modeling of Gas Dispersion
      Gas detonation
      Gas dispersion
      Modeling – Dispersion
    3. Certification material, ver. 1, January 2010
    4. Additional material:
      • Directive 94/9/EC, ATEX directive Equipment and protective systems intended for use in potentially explosive atmospheres
      • Atex Guidelines, European Commission, Guidelines on the application of Directive 94/9/EC of the European Parliament and the Council of 23 March 1994 on the approximation of the laws of the member states concerning equipment and protective systems intended for use in potentially explosive atmospheres
      • Gas Explosion Handbook, D. Bjerketverdt, J. R. Bakke, Kess vDirecan Wingerden
      • Explosion Protection, Manual, Pepperl + Fuchs
      • Vapor Clouds Dispersion, Methods for the calculation of Physical Effects, VROM, Yellow Book


    For more information about the European Master and Certification Program in Risk Engineering and Management in general, go the Homepage.
    For more information about the European Master Program in Risk Engineering and Management in general, go the Master Study page.
    To see more courses in the curriculum, go to The curriculum page, or by date and topic go to the Calendar of Courses page.
    Contact: via email sti889@risk-technologies.com or phone +49 711 1839 781 or +49 711 1839 647
    (Course profile ID: IIIB-R09, generated on November 19, 2018)