@article{HauschildMarheinekeMehrmannetal.2019, author = {Hauschild, Sarah-Alexa and Marheineke, Nicole and Mehrmann, Volker and Mohring, Jan and Badlyan, Arbi Moses and Rein, Markus and Schmidt, Martin}, title = {Port-Hamiltonian modeling of district heating networks}, series = {Progress in Differential Algebraic Equations II (edited by Reis T., Grundel S., and Sch{\"o}ps S). Differential-Algebraic Equations Forum}, journal = {Progress in Differential Algebraic Equations II (edited by Reis T., Grundel S., and Sch{\"o}ps S). Differential-Algebraic Equations Forum}, pages = {17}, year = {2019}, abstract = {This paper provides a first contribution to port-Hamiltonian modeling of district heating networks. By introducing a model hierarchy of flow equations on the network, this work aims at a thermodynamically consistent port-Hamiltonian embedding of the partial differential-algebraic systems. We show that a spatially discretized network model describing the advection of the internal energy density with respect to an underlying incompressible stationary Euler-type hydrodynamics can be considered as a parameter-dependent finite-dimensional port-Hamiltonian system. Moreover, we present an infinite-dimensional port-Hamiltonian formulation for a compressible instationary thermodynamic fluid flow in a pipe. Based on these first promising results, we raise open questions and point out research perspectives concerning structure-preserving discretization, model reduction, and optimization.}, language = {en} }