Method of monitoring the storage of heat energy in the...

F - Mech Eng,Light,Heat,Weapons – 24 – D

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F24D 11/00 (2006.01) F28D 20/00 (2006.01)

Patent

CA 2629234

The invention relates to a method of monitoring a unit for storing heat energy in the ground, including a plurality of heat exchangers which are buried in the ground. According to the invention, each of the aforementioned heat exchangers enables an exchange of heat energy between a heat-transfer fluid passing therethrough and the ground. The energy storage unit is disposed at the interface between a heat energy source and a heat energy consumer in order to store heat energy. The inventive method is characterised in that it consists in measuring: the temperature at different points of the ground using buried temperature sensors, the temperatures and flow rate of a heat-transfer fluid entering and leaving the source in order to determine the thermal output supplied by the source, and the temperatures and flow rate of a heat-transfer fluid entering and leaving the consumer in order to determine the thermal output to be supplied to the consumer. The invention is also characterised in that the storage of heat energy in the storage unit is optimised by selecting active exchangers from among the plurality of exchangers as a function of the temperature measurements, the flow rate measurements and the thermal output measurements.

Procédé de contrôle d'une unité de stockage d'énergie thermique dans le sol comportant une pluralité d'échangeurs de chaleur enterrés dans le sol, chacun desdits échangeurs permettant un échange d'énergie calorifique entre un fluide caloporteur le traversant et le sol, ladite unité de stockage d'énergie étant disposée à l'interface entre une source et un consommateur d'énergie calorifique pour stocker de l'énergie thermique, caractérisé en ce que l'on mesure la température en différents points du sol au moyen de capteurs de température enterrés, les températures et débit d'un fluide caloporteur en entrée et en sortie de la source pour déterminer la puissance thermique fournie par la source, et les températures et débit d'un fluide caloporteur en entrée et en sortie du consommateur pour déterminer la puissance thermique à fournir au consommateur, et en ce que l'on optimise le stockage d'énergie thermique dans ladite unité de stockage en sélectionnant des échangeurs actifs parmi ladite pluralité d'échangeurs en fonction des mesures de température, des mesures de débit et des mesures de puissance thermique.

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