Guisan, Olivier and Lachal, Bernard and Matthey, Bernard and Mermoud, André and Pahud, Daniel (1990) A 20'000 m3 Solar Seasonal Heat Store Under an Industrial Building at Meyrin-Geneva. Measurements and Calculations. In: Zeitschrift für angewandte Geowissenschaften Workshop on Seasonal Thermal Energy Storage in Duct Systems, 19.06.1990-20.06.1990, Freising, Germany.
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Abstract
The solar system described comprises a seasonal earth heat store located underneath the building, fed by 950 m2 of flat plate solar collectors. The heat exchanger is made up of 258 fifteen meters deep vertical boreholes, each containing 4 tubes (two polyethylene loops). The distance between the boreholes is 2.3 m. The system is designed to cover 40% of the thermal demands of the building. The stored heat is covered by means of a gas heat pump. The apparatus for measuring the store consists of temperature probes which permit the taking of vertical temperature profiles in different areas of the ground. The power exchange of some boreholes will also be measured. We solve the problem of the prevision of temperature in the store with an analytical solution of the equation of heat for pure diffusion. A good correlation is obtained between the measurements and calculations.
| Item Type: | Article in conference proceedings or Presentation at a conference (Paper) |
|---|---|
| Uncontrolled Keywords: | Solar collectors, industrial building, borehole heat exchanger, ground heat storage, gas heat pump, system measurements |
| Subjects: | Engineering > Civil engineering > Environmental engineering > Energy resources |
| Department/unit: | Dipartimento ambiente costruzioni e design > Istituto sostenibilità applicata all'ambiente costruito |
| Depositing User: | Daniel Pahud |
| Date Deposited: | 06 Dec 2013 09:04 |
| Last Modified: | 19 May 2016 13:08 |
| URI: | http://repository.supsi.ch/id/eprint/3083 |
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