M.Sc. Matthias Bonarens

Contact

work +49 6151 16-28893
fax +49 6151 16-28000

Work L6|01 108
Otto-Berndt-Str. 3
64287 Darmstadt

In the light of climate change and the anthropogenic impact on the environment, it is necessary to optimize industrial processes in terms of efficiency and pollutant emissions. This requires a profound understanding of the underlying physical processes. Reactive gas-phase flows are of particular relevance in energy technology, but their experimental characterization is anything but trivial. This is often due to the fact that the given boundary conditions and requirements with respect to robustness, process access, influence of the process, measurement accuracy, as well as time and spatial resolution exclude the application of many established measurement methods.

Absorption spectroscopic methods such as tunable diode laser absorption spectroscopy (TDLAS) and super continuum laser absorption spectroscopy (SCLAS) are robust measurement methods that allow accurate and influence-free investigations of gas phase flows at high temporal resolution. However, these methods do not allow to resolve the distribution of the measured quantities along the absorption path. This drawback can be overcome by the application of tomographic methods. Tomography allows the reconstruction of spatial distributions based on measurements along multiple paths within a measurement volume. Therefore, by combining absorption spectroscopy and tomography, many industrially relevant gas-phase processes can be characterized comprehensively. The challenges involved are of both theoretical and experimental nature.