טכניון מכון טכנולוגי לישראל
הטכניון מכון טכנולוגי לישראל - בית הספר ללימודי מוסמכים  
M.Sc Thesis
M.Sc StudentYaloz Avia
SubjectDispersion of Hazardous Materials in Buildings
DepartmentDepartment of Chemical Engineering
Supervisors Professor Emeritus Abraham Marmur
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Full Thesis textFull thesis text - English Version


Abstract

In the current reality, it is very likely that the next chemical attack will be executed by terrorist organizations. Many terrorist groups have little difficulty acquiring chemical materials (such as chlorine, cyanide and organophosphates that are used in daily life for different needs). Together with the use of improvised explosive devices,  
non-conventional terrorist attacks may develop into a substantial growing threat.

The consequences of a successful chemical attack can be dreadful and long-term with respect to casualties, economic loss and moral damage (panic among citizens, sabotaging government symbols).  Therefore, the ability to accurately predict potential contaminant dispersion inside a building is critical information for smart planning of new buildings on the one hand and for risk assessment and damage minimization of existing buildings (by using suitable detection and protection measures) on the other hand.

This work focuses on understanding the main parameters that govern the dispersion of chemical materials in a given building, investigates the effectiveness of different protection measures and compares them to analyse the material dispersion.

This is done by analyzing the dispersion of different chemical warfare agents (AC, GB and HD) in 4 representative indoor terrorist scenarios. The dispersion is analyzed by using two computational approaches - CFD and a multizone model (FLUENT and CONTAM respectively). By doing so a comparison between the 2 approaches is given.


This research was partially supported by the RIBS project, a research project within Framework Program 7 (FP7) of the European Union, grant agreement 242497.