Paper Conference

Proceedings of Building Simulation 2021: 17th Conference of IBPSA


Developments in simulation and evaluation of large-scale hot water tanks and pits in renewables-based district heating

Abdulrahman Dahash, Fabian Ochs, Alice Tosatto
University of Innsbruck, Austria

Abstract: Large-scale thermal energy storages (TES) are advantageous to bridge the seasonal gap between heat demand and availability of renewables. Yet, the high investment costs associated with large-scale TES is still seen as a major barrier. Challenges are space availability and the presence of groundwater. The complexity of the processes and interactions motivate the application of simulation tools for planning such systems. This work summarizes the features of the different TES models, develops numerical models in different tools and compares the results with respect to thermal losses and temperature stratification.
Keywords: Hot water tank, buried pit, numerical modeling and simulation, seasonal thermal energy storage, co-simulation approaches.
Pages: 1325 - 1333