Abstract: Method and device for storing thermal energy in, and recapturing thermal energy from, respectively, an underground energy storage (1), having at least four holes (2), through which a heat carrier is transported and therewith heating or cooling the ground (3), respectively. The holes (2) are arranged essentially along at least two concentric circles (10, 11, 12). A control gear is arranged to control a valve system, which is arranged to direct the heat carrier to holes that are arranged along one circle and thereby heating or cooling, respectively, the ground along the circle. When the temperature of the heat carrier is higher than that of the surrounding ground (3), inner circles are heated before outer circles, and when the temperature of the heat carrier is lower than that of the surrounding ground (3), outer circles are cooled before inner circles.

Abstract: A device for heating and cooling, respectively, includes a heat pump (1), a first heat exchanger (2) arranged at a first side of the heat pump (1), which first heat exchanger (2) is thermally connected to a first heat carrier being circulated in a first loop (10), and a second heat exchanger (3) arranged at a second side of the heat pump (1), which second heat exchanger (3) is arranged to transfer thermal energy to or from a second heat carrier which is circulated in a second loop (20). The first (10) and the second (20) loops are interconnected by a conduit (4) so that the first loop (10), the second loop (20) and the conduit (4) together form a connected system, in which connected system one and the same heat carrier is arranged.

Abstract: Heat pump assembly for seasonal balancing of temperatures in buildings, includes a heat pump (1) having a cold side and a warm side, respectively. The heat exchangers (2, 3) are connected to the cold and the warm side, respectively, in that one of the heat exchangers (3) is connected to a heating/cooling element (4), in that the other heat exchanger (2) is connected to a heat/cold buffer (6), in that the heat pump (1) is of the type liquid-liquid, and in that a valve assembly (7) is arranged in the heat pump (1) to optionally connect the warm or cold side of the heat pump (1) to the heating/cooling element (4), whereby the heating/cooling element (4) optionally may heat or cool.

Abstract: Method and device for storing thermal energy in, and recapturing thermal energy from, respectively, an underground energy storage (1), having at least four holes (2), through which a heat carrier is transported and therewith heating or cooling the ground (3), respectively. The holes (2) are arranged essentially along at least two concentric circles (10, 11, 12). A control gear is arranged to control a valve system, which is arranged to direct the heat carrier to holes that are arranged along one circle and thereby heating or cooling, respectively, the ground along the circle. When the temperature of the heat carrier is higher than that of the surrounding ground (3), inner circles are heated before outer circles, and when the temperature of the heat carrier is lower than that of the surrounding ground (3), outer circles are cooled before inner circles.

Abstract: A device for heating and cooling, respectively, includes a heat pump (1), a first heat exchanger (2) arranged at a first side of the heat pump (1), which first heat exchanger (2) is thermally connected to a first heat carrier being circulated in a first loop (10), and a second heat exchanger (3) arranged at a second side of the heat pump (1), which second heat exchanger (3) is arranged to transfer thermal energy to or from a second heat carrier which is circulated in a second loop (20). The first (10) and the second (20) loops are interconnected by a conduit (4) so that the first loop (10), the second loop (20) and the conduit (4) together form a connected system, in which connected system one and the same heat carrier is arranged.

Abstract: Heat pump assembly for seasonal balancing of temperatures in buildings, includes a heat pump (1) having a cold side and a warm side, respectively. The heat exchangers (2, 3) are connected to the cold and the warm side, respectively, in that one of the heat exchangers (3) is connected to a heating/cooling element (4), in that the other heat exchanger (2) is connected to a heat/cold buffer (6), in that the heat pump (1) is of the type liquid-liquid, and in that a valve assembly (7) is arranged in the heat pump (1) to optionally connect the warm or cold side of the heat pump (1) to the heating/cooling element (4), whereby the heating/cooling element (4) optionally may heat or cool.