Article

Formhals, Julian ; Kirschstein, Xenia ; Dahash, Abdulrahman ; Seib, Lukas ; Sass, Ingo (2024)
Development, validation and demonstration of a new Modelica pit thermal energy storage model for system simulation and optimization.
In: Geothermal Energy, 2024, 12
doi: 10.26083/tuprints-00027735
Article, Secondary publication, Publisher's Version

Hemmatabady, Hoofar ; Formhals, Julian ; Welsch, Bastian ; Schulte, Daniel Otto ; Sass, Ingo (2021)
Optimized Layouts of Borehole Thermal Energy Storage Systems in 4th Generation Grids.
In: Energies, 2020, 13 (17)
doi: 10.26083/tuprints-00019241
Article, Secondary publication, Publisher's Version

Formhals, Julian ; Hemmatabady, Hoofar ; Welsch, Bastian ; Schulte, Daniel Otto ; Sass, Ingo (2020)
A Modelica Toolbox for the Simulation of Borehole Thermal Energy Storage Systems.
In: Energies, 2020, 13 (9)
doi: 10.25534/tuprints-00013419
Article, Secondary publication, Publisher's Version

Ph.D. Thesis

Formhals, Julian (2022)
Object-oriented modelling of solar district heating grids with underground thermal energy storage.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00021506
Ph.D. Thesis, Primary publication, Publisher's Version