Christian Jäkle

Since November 2019 I am a Ph.D. student in the group of Prof. Dr. Stefan Volkwein. In my Ph.D. I work on optimization of district heating networks.

This position is supported by the german BMBF-Projekt: "Entwicklung einer Software zur optimalen Auslegung und dynamischen Betriebsweise von bidirektionalen Anergie und Wärmenetzen mit dezentralen Einspeisungen".

Research Topics:

• PDE-Constrained Optimization
• Mixed-Integer Optimal Control
• Proper Orthogonal Decomposition (POD) for optimal control problems

Programming languages:

• Python
• Matlab
• Latex
• git
• C/C++

Software:

I am main developer of the python optimization package optimization package in python (oppy).

Teaching:

• Summer Term 2023: Supervision of the lecture "Optimization I" by Prof. Volkwein together with Lena Reichle.
• Summer Term 2022: Supervision of the lecture "Computer Application in Mathematics" by Dr. Stefan Frei together with Marco Bernreuther.
• Winter Term 2020/2021: Supervision of the compact course "Iterative Methods" by Jun.-Prof. Ciaramella.
• Winter Term 2020/2021: Supervision of the lecture "Optimization II" by Jun.-Prof. Ciaramella together with Dr. Georg Müller.
• Summer Term 2020: Supervision of the lecture "Optimization I" by Jun.-Prof. Ciaramella.
• Winter Term 2019/2020: Supervision of the lecture "Numerische Mathematik" by Prof. Volkwein and Dr. Frei together with Luca Mechelli and Marco Bernreuther.

Publications:

• Optimal control of dynamic district heating networks
  C. Jäkle, L. Reichle and S. Volkwein
  Submitted, 2023
• Modelling and Simulation of District Heating Networks
  C. Jäkle, L. Reichle and S. Volkwein
  Technical Report 404, University of Konstanz, 2022
• POD-based mixed-integer optimal control of evolution systems
  C. Jäkle und S. Volkwein
  To appear in SON 2020 - Proceedings of the Workshop on Dynamics, Optimization and Control. O. Junge, S. Ober-Blobaum, K. Padberg-Gehle, G. Froyland and O. Schütze (eds.), Book series Studies in Systems, Decision and Control, Springer 2020
• POD-Based Mixed-Integer Optimal Control of Convection-Diffusion Equations
  C. Jäkle
  Masterthesis

Poster:

• Digitale Kompetenzen im Mathematikstudium: Algorithmen des Maschinellen Lernens
  Dr. S. Frei, Dr. J. Bartsch, Dr. M. Bernreuther, C. Jäkle, Thanh-Van Huynh and D. Kattermann
  Teaching Innovation Fund, University of Konstanz, 2024
• Modeling and Simulation of District Heating Network
  C. Jäkle, L. Reichle, S. Volkwein
  Trends on dissipativity in systems and control; FernUni Schweiz; Brig, 23.-25.05.2022