M.Sc. Robin Schultheis




work +49 6151 16-28915
fax +49 6151 16-28900

Work L6|01 114
Otto-Berndt-Str. 3
64287 Darmstadt

The development of sustainable, efficient energy storage systems is one of the greatest challenges of our time in the fight against climate change. Worldwide, researchers are looking for renewable alternatives to conventional fossil fuels. Alongside hydrogen, ammonia is attracting increasing attention as one of the most promising alternatives.

As one of the world's most widely produced chemicals, with an annual production of over 235 million tons, the use of Ammonia is quite attractive through the already established distribution infrastructure. Based on the Haber-Bosch-process, Ammonia can be produced from the synthesis of atmospheric nitrogen and hydrogen in a carbon-free manner and from sustainable sources. With a specific energy of 22.5 MJ/kg, it is also comparable to other fuels (diesel 46 MJ/kg, natural gas 55 MJ/kg, LNG 54 MJ/kg, and hydrogen 142 MJ/kg).

In cooperation with the University of Applied Sciences Darmstadt, the aim of the research at the Institute of Reactive Flows and Diagnostics is to gain a more detailed understanding of energy efficiency, combustion and exhaust characteristics of ammonia and ammonia-hydrogen flames with respect to possible applications as an alternative, sustainable fuel.

The 1D Raman/Rayleigh laser spectroscope at the RSM provides a worldwide unique possibility to simultaneously measure the concentrations of the individual main species as well as the temperatures present in complex flame structures. The measurements are complemented by the determination of velocity fields in the flame by particle image velocimetry (PIV), as well as the use of laser-induced fluorescence to characterize the Oxygen-hydroxyl (OH*) radical concentration.