GEROtherm® DUPLEX - ETH HPL Life Science Platform Zurich
With the Science City project, ETH Zurich is pursuing the goal of developing its Hönggerberg site into a model of a sustainable campus and expanding the campus as an international hub of science, business and the population. New, sustainable building complexes will be constructed in various construction phases. The ecological goals of the project are a reduction of the specific heat demand by 60% in the area of heating as well as cooling by means of geothermal energy. For this purpose, a new energy concept was developed as a dynamic earth storage system to cover the heat demand by means of earth probe fields.
As part of the Science City project, a new HPL laboratory building is being constructed. This consists of three basement floors and six above-ground floors and closes off the ETH campus on the Hönggerberg in Zurich towards the southeast.
To cover the heat demand for this building, a geothermal system was planned by the company Geowatt AG, Zurich. A total of 101 Gerotherm ® PE 100-RC geothermal probes are being sunk by Thermatech AG. With two drilling machines a complete 200m deep borehole will be drilled daily in about 10h and the 200m HakaGerodur Gerotherm® geothermal probes incl. 24kg weight will be sunk.
Due to the many years of experience of the drilling company and in particular of the drilling foreman, the boreholes run without any problems. At a drilling depth of about 25-30 m, rock is encountered in the existing geology. After completion of the complete borehole, the HakaGerodur Gerotherm® geothermal probes can be installed in a very short time and without any problems. Thus, the project is well within the tight schedule.
After sinking the double-U geothermal probes, the borehole is backfilled according to the specifications. Here, 2 injection pipes are used to guarantee correct backfilling. A bentonite-cement suspension is used for backfilling.
Pressure testing is performed after backfilling the borehole to confirm the tightness of the geothermal probes.
The total time required to construct the geothermal probe field for the HLP Life Science Platform construction project is only a few weeks. The following construction phases will also be equipped with geothermal probes in the near future.
ETH Life Science
Schafmattstrasse 22
CH-8049 Zürich
101 pcs. HakaGerodur GEROTHERM® geothermal probes
L=200m / PE 100-RC
DE 40mm x 3.7 incl. connection
As part of the Science City project, a new HPL laboratory building is being constructed. This consists of three basement floors and six above-ground floors and closes off the ETH campus on the Hönggerberg in Zurich towards the southeast.
To cover the heat demand for this building, a geothermal system was planned by the company Geowatt AG, Zurich. A total of 101 Gerotherm ® PE 100-RC geothermal probes are being sunk by Thermatech AG. With two drilling machines a complete 200m deep borehole will be drilled daily in about 10h and the 200m HakaGerodur Gerotherm® geothermal probes incl. 24kg weight will be sunk.
Due to the many years of experience of the drilling company and in particular of the drilling foreman, the boreholes run without any problems. At a drilling depth of about 25-30 m, rock is encountered in the existing geology. After completion of the complete borehole, the HakaGerodur Gerotherm® geothermal probes can be installed in a very short time and without any problems. Thus, the project is well within the tight schedule.
After sinking the double-U geothermal probes, the borehole is backfilled according to the specifications. Here, 2 injection pipes are used to guarantee correct backfilling. A bentonite-cement suspension is used for backfilling.
Pressure testing is performed after backfilling the borehole to confirm the tightness of the geothermal probes.
The total time required to construct the geothermal probe field for the HLP Life Science Platform construction project is only a few weeks. The following construction phases will also be equipped with geothermal probes in the near future.
Construction:
ETH Life Science
Schafmattstrasse 22
CH-8049 Zürich
Used PRODUcTs:
101 pcs. HakaGerodur GEROTHERM® geothermal probes
L=200m / PE 100-RC
DE 40mm x 3.7 incl. connection
TECHNICAL SPECIFICATIONS
