Photo of Nijs Jan Duijm
1994 …2020

Research activity per year

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Personal profile


Research in risk analysis and safety management. Quantitative risk assessment and consequence assessment for major hazard accidents. Use of safety barriers in safety critical domains (process industry, oil & gas, renewable energy, public transportation). Interaction between safety management and safety barrier performance.

Contribution to9 the course: System's Safety and Reliability Engineering

Other information

Responsible for the wind-tunnel modelling technique during the Hong Kong Alternative Replacement Airport Sites (ARAS)-Meteorological Study.
Responsible for the air quality modelling during the Hong Kong Port & Airport Development Strategy (PADS)-Air Quality Study.
Responsible for the wind-tunnel modelling study for the Hong Kong. North Lantau Development Study
Responsible for the co-ordination of the following CEC international projects:
- MTH physical modelling of jet fires (1988-1991)
- STEP Jet fire interactions with vessels containing flammable liquids (JIVE) (1991-1994)
- STEP Research on the dispersion of two phase flashing releases-FLADIS (1991-1994)

Language Skills:

Research areas

Risk analysis, Safety management, Consequence assessment of accidental releases of hazardous materials, Safety barrier analysis

External positions

External Associate Professor, DTU

2016 → …

Senior Risk specialist, Det Norske Veritas, Denmark A/S

2008 → …

Senior Researcher, DTU


Scientist/Group Leader, Risø National Laboratory


Scientist/Group Leader, Netherlands Organization for Applied Scientific Research



  • User defined:
  • major accident consequence assessment
  • risk analysis
  • risk
  • safety
  • safety management
  • quantitative risk assessment


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