ElAN - Efficient local waste heat utilisation in low-temperature networks

Prof. Dr. Stefan Volkwein
University of Konstanz
Department of Mathematics and Statistics
Research Group Numerical Optimization
78457 Konstanz

• Prof. Dr. Nicole Marheineke
  University of Trier
  Department IV – Mathematics
  Chair of Modelling and Numerics
  54286 Trier
• Dr. Jan Mohring
  Fraunhofer Institute for Industrial Mathematics ITWM
  Department of Transport operations
  67663 Kaiserslautern
• Dr. Benjamin Unger
  University of Stuttgart
  Stuttgart Center for Simulation Science
  Independent Junior Research Group Leader for Dynamical Systems
  70569 Stuttgart
• Prof. Dr. Stefan Volkwein
  University of Konstanz
  Department of Mathematics and Statistics
  Research Group Numerical Optimization
  78457 Konstanz

Rechenzentrum für Versorgungsnetze Wehr GmbH
Dr.-Ing. Piet Hensel, Dr.-Ing. Dirk König
Wiesenstraße 21
40549 Düsseldorf

In the present project ElAN, efficient local waste heat utilization in low-temperature heat networks is to be calculated. Decentralized waste heat feeds on site (e.g. from supermarkets, computer centers or foundries) should lead to more climate-neutral municipalities and regions in the sense of a sustainable circular economy. In order to achieve this goal, a model-predictive control is designed that arrives at a solution strategy by digital (i.e. computational) means using mathematical models that can be applied to real heating networks. For this solution approach, it is necessary to develop new algorithmic strategies, since it is a high-dimensional network optimization in which switched differential-algebraic systems and constraints for state variables occur as constraints. For this purpose, new methods of model reduction are combined with efficient and adapted optimization methods in an innovative way.

• 31^th January 2023: Virtual project meeting
• On 14^th February 2023, Sarah Hauschild will give a talk with the title
  "Numerical Methods for a port-Hamiltonian Model of the Compressible Euler Equations (Teil 1)"
• On 21^th February 2023, Sarah Hauschild will give a talk with the title
  "Numerical Methods for a port-Hamiltonian Model of the Compressible Euler Equations (Teil 2)"
• On 22^th March 2023, Matthias Eimer will give a talk with the title:
  "Modeling and Efficient Simulation of District heating Networks"
• April 25-26, 2023: Kick-Off Meeting at the University of Konstanz
• 13^th December 2023: Talk by Mr. Dr. Benjamin Unger on the topic of "Towards Port-Hamiltonian Systems with Time-Delays"
• 20^th to 21^th February 2024: Project meeting in Stuttgart
  • Presentation by M. Kartmann, J. Rohleff and S.Volkwein on the project status

• Dr. Matthias Eimer, ITWM Kaiserslautern
• Johanna Heidrich, ITWM Kaiserslautern
• Michael Kartmann, University of Konstanz
• Dr. Mattia Manucci, University of Stuttgart
• Andrés Felipe Ortegón Villacorte, University of Trier
• Jan Rohleff, University of Konstanz

• Finite-Dimensional RHC Control of Linear Time-Varying Parabolic PDEs: Stability Analysis and Model-Order Reduction
• B. Azmi, J. Rohleff und S. Volkwein
  Submitted, 2024
• Optimal control of port-Hamiltonian systems with minimal energy supply: a penalty method approach
  H. Kühnert
  Masterthesis, University of Konstanz, 2023
• Optimal control of dynamic district heating networks
  C. Jäkle, L. Reichle und S. Volkwein
  Submitted, 2023
• Model Reduction on Manifolds: A differential geometric framework.
  P. Buchfink, S. Glas, B. Haasdonk and B. Unger
  Submitted, 2023
• Towards a modeling class for port-Hamiltonian systems with time-delay.
  T. Breiten, D. Hinsen, and B. Unger
  ArXiv e-print 2211.10687, 2022.