Measuring the dispersion paths of gases and aerosols in buildings
For several years now, there has been a working group at the Institute of Solar Research that develops methods and tools for the energetic analysis and evaluation of buildings.
The activities in this field include, in particular, non-intrusive methods such as acoustic leakage testing, infrared thermography and (aerial and satellite image-based) inventory analyses ranging from the scale of individual buildings up to entire neighbourhoods.
In the TragSens project, we cooperate with scientists working at the DLR Institute of Optical Sensor Systems, the DLR Microwaves and Radar Institute and the DLR Institute for the Protection of Terrestrial Infrastructures. We study which mobile measurement systems are best suited for detecting gas exchange paths of hazardous substances in the air in buildings and determining their exchange rates. The application in existing buildings shall work without extensive preparation of the building and, interfere the least possible with its use.
The following methods are being tested for this purpose:
Depending on the construction type, age and design of buildings, there are numerous paths for gas exchange between different building sections and in the building envelope. Smoke, gas and gaseous hazardeous substances spreading along these paths pose a great danger to persons present in the building in the case of fire, accident and attack.
The portable measurement systems shall therefore be used to detect paths and rates of gas exchange. In particular, the measurement results can be used for preventive measures. They can be applied in the field of:
By working together with stakeholders from companies and authorities, we strengthen the relevance of the project results for future application.
DLR Institute of Solar Research
DLR-Microwaves and Radar Institute
DLR-Institute for the Protection of Terrestrial Infrastructures
DLR- Institute of Optical Sensor Systems