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SAChE® Certificate Program – Atmospheric Dispersion

  • Course ID:
  • Type:
    eLearning (online) Course
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  • Duration:
    3.25 hours
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Natural forces such as wind, rising heat, pressure gradients will disperse airborne substances that may include hazardous releases from a process safety incident. Atmospheric dispersion models are useful in being able to predict such phenomena for planning as well as emergency response purposes. Fundamental chemical engineering principles such as, heat and mass transfer and mixing are the basis of such models.

Students will learn the usefulness of the atmospheric dispersion models, and critical factors that influence the calculations. These may include wind direction and speed, elevations, surface characteristics, and atmospheric variability. 

They will also learn about various types of dispersion models from simple passive models to complex Computational Fluid Dynamics models, and their strengths and weaknesses. The calculations behind several plume models are explained. The course also touches on toxic and flammability hazards and the emergency response planning guidelines.

Learn more about the SAChE Certificate Program.


Thomas Spicer

Tom Spicer is a professor and the Maurice Barker Chair in the Department of Chemical Engineering at the University of Arkansas. In addition to administrative duties, he teaches courses on chemical process safety and process control. He is a member of the AIChE Safety and Chemical Engineering Education (SACHE) Committee and the AIChE Education and Accreditation Committee. Tom has been a faculty member since 1985 and served as department head from 2001 to 2012. Tom’s primary research interests are in the assessment of hazards from airborne contaminants, particularly those that are...Read more

Ms Kay Koslan

Kay's Chemical Engineering career began at the Dow Chemical Company in 1990 in process engineering/production spearheading a new soil devolatilization technology.

She then focused in the Environmental group, namely in VOC/NOX Netting RCRA Subpart CC implementation and other RCRA regulations, as well as negotiations with EPA and the TECQ (Texas Commission on Environmental Quality). From environmental work she moved to process engineering in the designing/upgrading of facilities in Texas and Tarragona, Spain.

The remainder of her Dow career was spent in the Process Safety...Read more



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