Phosphor thermometry in LOHC release units
Laboratory setup for the determination of temperature and flow fields in a model dehydrogenation unit
For an effective release of hydrogen from a liquid organic hydrogen carrier (LOHC), the optimization of temperature and flow fields in a dehydrogenation unit is a central task. This project deals with the development of a measurement method for the determination of temperature fields in this challenging measurement environment, in which a large number of gas bubbles are generated. The method used is laser-induced phosphorescence. Here, particles in the micrometer range added in low concentrations are illuminated with a laser light sheet, and the resulting phosphorescence signal is evaluated in terms of the local temperature by imaging. The results obtained are the basis for a numerical and experimental optimization of the dehydrogenation process.
This project is part of the project “Emission-free and highly emission-reduced rail traffic on non-electrified lines” under the project management of the Helmholtz Institute Erlangen-Nuremberg and with funding from the Bavarian State Ministry of Economic Affairs, Regional Development and Energy.