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Simulation of a Vertical Ground Heat Exchanger as Low Temperature Heat Source for a Closed Adsorption Seasonal Storage of Solar Heat

By Samuel Hennaut, Sébastien Thomas, Elisabeth Davin, Alexandre Skrylnyk, Marc Frère and Philippe André


AbstractThis paper deals with the simulation of a vertical geothermal heat exchanger as low temperature heat source for a closed adsorption seasonal heat storage. The seasonal storage should allow reaching a nearly 100% solar fraction for space heating of a “low energy” building”. The selected adsorbent and adsorbate are respectively bromide strontium and water. The studied system, including the building and the ground exchanger, is simulated using the dynamic simulation software TRNSYS. Results show that expected performances are reached with a borehole of 100 m. The evaporation temperatures computed are really close to 0°C which might cause some problems. But an advanced research would maybe impose a deeper borehole to avoid cooling the ground on the long term

Publisher: The Authors. Published by Elsevier Ltd.
Year: 2014
DOI identifier: 10.1016/j.egypro.2014.02.043
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