Annex TS8: Experimental investigations of DHC systems
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General
To meet the climate targets, the transformation of existing and the new construction of district heating (DH) grids are a central measure for the decarbonisation. To reach these goals, new approaches for flexibilisation, digitalisation and sector coupling are of central importance. However, especially for multivalent and volatile usage of heat sources, new operating strategies and the conversion of supply infrastructures are necessary. The investigation and enhancement of new DH supply strategies as part of laboratory investigations and field experiments with digitalisation applications (e.g. digital twin) contributes to improving system performance and promoting the expansion of the thermal network. In addition, the experimental investigation offers a number of advantages over software-based analyses, like a more realistic depiction of the physical behaviour. On the other hand, experimental investigations can also support the improvement (e.g. validation) of software and the quality of the calculation data used.
Beyond this background, the cooperation project “IEA DHC Annex TS 8 - Experimental investigations of DHC systems” aims to advance and demonstrate experimental research for district heating expansion by identifying appropriate digital technologies, robust databases, and linking experimental facilities.
First, it is about assessing and identifying requirements for flexible experimental studies for future DHC supply, in general. Here, for example, existing knowledge from other Annexes could already be built upon. To enable these investigations, the collection and compilation of design and control methods based on digital approaches are targeted. To achieve reliable results, the identification and consolidation of available databases for software-based and experimental investigation is aimed. For example, a kind of general overview could be created, here. Beside available Data and Software, there are already some experimental facilities in operation. But as they are quite often designed for specific investigation tasks (e.g. component testing, pipe testing, or systemic testing), the identification of potentials for linking the available experiential facilities is required. To have an overview of which test facilities (laboratory and field test) are available, a literature review or a comprehensive survey will be carried out.
TS8 task manager
Please contact the TS8 task manager if you would like to join the task-shared Annex or have any other questions concerning Annex TS8. Thank you.
Dr. Anna Cadenbach
Fraunhofer Institute for Energy Economics and Energy System Technology, IEE
Germany
anna.cadenbach@iee.fraunhofer.de
