Fire is a complex phenomenon that is naturally impossible to predict. Therefore it makes sense that we
use computer software that enables an assessment of development of the fire and by-products
generated during combustion. Accident investigators often resort to simulation of situations that give
them the insight into the causes of the accident and what needs to be changed in design of materials or
buildings. In the first part of the thesis, I summarized the fundamentals and the products of
combustion. I presented the development of a typical fire in a facility and individual stages of fire. I
then described the legislation governing fire protection and technical guidance on fire safety in the
buildings. In order for a fire in the facility to be possible, three key conditions must be met. Heat, air
and enough fuel must be present in the room. In the second part of the thesis, I modeled five different
scenarios of burning in the faculty library with software package FDS and Smokeview. With a variety
of scenarios I wanted to show the development of fire depending on the location of fire and the course
of fire according to the changing conditions to which it is subjected. Based on the results of computer
simulation, I did a comparison between the two sets of results according to the location of ignition. In
the last numerical example, I simulated fire fighting using CO2 gas, which should be considered in
areas of high fire risk and in areas with sensitive equipment. Based on the results, I showed how we
can improve the fire safety of the faculty and the evacuation route in case of fire in the library. I found
out that the fire is very unpredictable and that each variable in the initial stage of the fire has a major
influence on its development. At the same time, I realized that fire fighting with CO2 in the library can
be very effective, as it does not damage the equipment, but we need to ensure sufficient time for safe
evacuation of people from the area.
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