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Spread of airborne pathogens in hospitals and ventilation solutions

Project details
Project term
November 2016 to October 2019
Funding code
Project management
Eugen Lichtner

The sub-project EKOS is part of the interdisciplinary strategy concept "InfectControl 2020" and has the goal to ensure a safe infectiological-medical care of highly contagious patients in hospitals.

One of the pursued key objectives is to develop a safe ventilation concept as well as a calculation method to determine the local pathogen load and the resulting hazard potential.

In the first step the spread behaviour of airborne pathogens is investigated using Computational Fluid Dynamics (CFD) in different rooms and scenarios. Once the most influencing parameters are identified, a functional relationship between these and the spread of the airborne pathogens is searched for. The influence of different ventilation strategies, particle properties, emission parameters, person movement as well as pressure cascades between rooms is studied. Then, also biological properties of the pathogens like age and viability are took into account, which are provided by the associates. With this data a calculation method is developed.



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