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Subproject 3

Quality requirements for borehole heat exchanger backfilling materials

Participating Partners
Burkhardt GmbH
Fraunhofer ISE
Hauri KG
ZAE Bayern

Subproject 3 focuses on investigations of the actual behaviour of backfill materials in the subsurface. On the one hand, this is done to improve the understanding of the formation of faults, and on the other hand, it shows which situations are uncritical for the formation of faults while using shallow geothermal sources. Therefore, investigations beyond laboratory-scale are carried out to enable a realistic representation of a borehole heat exchanger. In 5 subprojects various problems are addressed:
Project Partners
Funding Authority