DLR-DAAD Doctoral Fellowship Nr. 658

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Enter the fascinating world of the German Aerospace Center (Deutsches Zentrum für Luft- und Raumfahrt; DLR) and help shape the future through research and innovation! We offer an exciting and inspiring working environment driven by the expertise and curiosity of our 11,000 employees from 100 nations and our unique infrastructure. Together, we develop sustainable technologies and thus contribute to finding solutions to global challenges. Would you like to join us in addressing this major future challenge? Then this is your place!

Our Institute of Low-Carbon Industrial Processes in Zittau offers a

DLR-DAAD Doctoral Fellowship

Nr. 658: Numerical simulations of industrial shaft furnaces for the direct reduction

What to expect:

The steelmaking industry, dominated by the blast furnace/basic oxygen furnace route, relies heavily on coal, which is a major source of greenhouse gas emissions. To mitigate these emissions, transitioning to direct reduction (DR) of iron using hydrogen (H2) and/or synthesis gas (H2/CO) is essential. This will significantly reduce carbon dioxide emissions and align with global sustainability goals. The institute of low carbon industrial processes has developed a particle resolved numerical 

tool to accurately model the direct reduction in fixed bed reactors. The goal of this fellowship is to simulate a direct reduction shaft furnace at industrially-relevant scales, in order to address optimization challenges at industrial scales. The foreseen approach is to create a portfolio of simplified reactor models and develop numerical tools, like tabulated chemistry, to keep the accuracy of the existing modeling framework.

The main tasks are as follow:

• Developing Python-based 0D/1D models of fixed beds for the direct reduction process of iron ore using H2/CO as reducing gas
• Generating a table of apparent reaction rates, using the existing particle-resolved CFD fixed bed model
• Coupling the developed 0D/1D models with the tabulated values of reaction rates
• Validating the models against the CFD results
• Performing phase-averaged CFD simulations of the fixed bed and utilize the same coupling technique followed by validation
• Scale up the reactor models to industrial-sized reactorsStudy the performance of large-scale shaft furnaces for the direct reduction process and perform a parameter sensitivity analysis

Please apply here: DLR-DAAD Research Fellowship Programme - DAAD - Deutscher Akademischer Austauschdienst

Further information and current vacancies: DLR Current offers - DAAD

What we expect from you:

• a Master’s degree in Mechanical, Chemical Engineering, Material Science, or a related field.
• advantageous Skills: Knowledges in chemical kinetics, especially w.r.t. heterogeneous chemistry
• Experiences in reaction mechanism development
• Experience with CFD modelling and simulation software, specially OpenFOAM is advantageous
• good programming skills; ideally, experiences with C++ and Python
• English competence: See requirements on www.daad.de/dlr

What we offer:

DLR stands for diversity, appreciation and equality for all people. We promote independent work and the individual development of our employees both personally and professionally. To this end, we offer numerous training and development opportunities. Equal opportunities are of particular importance to us, which is why we want to increase the proportion of women in science and management in particular. Applicants with severe disabilities will be given preference if they are qualified.

Further information:

Starting date: As soon as possible 

Type of employment: Full-time

Contakt:

Dr.-Ing. Quentin Fradet

Email: quentin.fradet@dlr.de

Do not overlook the inclusion of Academic Europe in your application.

DLR - Helmholtz / Deutsches Zentrum für Luft- und Raumfahrt

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