Master Thesis: Simulative Developement of a Purification Process for Geothermal Powerplants

The Fraunhofer Institute for Energy Infrastructure and Geothermal Energy IEG conducts research at seven locations in the fields of integrated energy infrastructures, geothermal energy, and sector coupling for
a successful energy transition. Our research institute conducts applied research, develops innovative technologies for public and industrial clients, and translates these into
marketable products and processes.

At Fraunhofer IEG, engineers in the field of "process engineering" are working to advance the energy transition in industrial processes. The aim is to replace fossil raw materials and integrate sustainable energy sources into industrial value chains.

To this end, we develop processes, components, and plants – from laboratory test benches to the integration of new thermodynamic or material processes into existing large-scale plants. Our work ranges from conception and design to dimensioning, construction, commissioning, and optimization of plant operation.

As an interface between science and industry, we evaluate technical and economic feasibility, operate our own test facilities, and develop simulation models and control concepts for complex systems. Our areas of expertise include thermodynamic storage and converters, heat pumps, binary power plant processes, water desalination, gas processing, and integration into district heating systems.

For our team at the Bochum site, we offer the opportunity to participate in the further development and implementation of these technologies as part of a master's thesis.

What you will do

• Phase and state calculation of mixtures with varying concentrations of impurities in the working fluid
• Optimization of the single-phase injection and operation conditions before heat sink
• Evaluate rectification options for purification downstream of the heat heat sink by property calculations
• Aesses catalytic oxidation of a partial stream as an alternative process

What you bring to the table

• Student in the field of mechanical engineering, energy engineering, process engineering, renewableenergies, or similar
• Experience in multiphase, multicomponent thermodynamics and separation processes
• Interest in renewable energies, geothermal power generation, and thermal process engineering
• Interest in programming in Python, C++, or similar
• Good German and English skills

What you can expect

• A research-oriented and practical thesis
• Flexible workload and working hours in an international, distributed team
• You will receive targeted, individualized supervision by our team members.
• We welcome active participation in the projects and incorporate your ideas

We value and promote the diversity of our employees' skills and therefore welcome all applications - regardless of age, gender, nationality, ethnic and social origin, religion, ideology, disability, sexual orientation and identity. Severely disabled persons are given preference in the event of equal suitability. Remuneration according to the general works agreement for employing assistant staff.

With its focus on developing key technologies that are vital for the future and enabling the commercial utilization of this work by business and industry, Fraunhofer plays a central role in the innovation process. As a pioneer and catalyst for groundbreaking developments and scientific excellence, Fraunhofer helps shape society now and in the future. 

Interested? Apply online now. We look forward to getting to know you

If you have any questions regarding this position, please contact:
Tilman Cremer

Kontakt per Mail

If you have any questions about the application process, please contact:
Philipp Steinborn

Telefon:

Kontakt per Mail

Fraunhofer Research Institution for Energy Infrastructures and Geotechnologies IEG 

Requisition Number: Application Deadline: 11/30/2025