Contact

Dr. Sebastian Unger

Head Thermal Energy and Process Technology
s.ungerAthzdr.de
Phone: +49 351 260 3225

Thermal Energy and Process Systems

Efficient thermal energy and separation processes make a decisive contribution to energy supply and energy consumption worldwide. Research into innovative approaches to energy generation using supercritical CO2 as a working medium as well as energy-optimised phase contacting and reducing the size of separation equipment are of crucial importance for resource-saving energy generation and use.

Foto: Carbosola power cycle ©Copyright: Dr. Sebastian Unger

Supercritical CO₂-power cycles for efficient heat utilization

Carbon dioxide above the critical point (31°C, 73.8 bar) has a number of advantages when used in thermodynamic cycle processes. These cyclic processes achieve higher efficiencies and a significant reduction in the size and complexity of the individual componen­ts. This enables the more efficient utilisation of industrial (waste heat), geothermal and solar heat sources as well as thermal energy storage systems.
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Foto: Droplet formation and reduction in thermal separation devices - logo ©Copyright: Torsten Berger

Efficient thermal se­paration processes

Thermal se­paration processes such as rectification, distillation, absorption, desorption and extraction are central unit operations in chemical process industries. The vapor-liquid se­paration processes are ­very energy-intensive, since they involve multiple sequences of evaporation and condensation.
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