Abstract: A method for identifying a deviation in a thermal energy circuit is presented.

Abstract: A local thermal energy consumer assembly and a local thermal energy generator assembly to be connected to a thermal energy circuit comprising a hot and a cold conduit. The local thermal energy consumer assembly is connected via a flow controller to the hot conduit. The local thermal energy generator assembly is connected via a flow controller to the cold conduit. The flow controller is selectively set in pumping mode or a flowing mode based on a local pressure difference between heat transfer liquid of the hot and cold conduits.

Abstract: A method for controlling a district thermal energy distribution system is presented. The method comprises: determining whether a local pressure difference between a feed line (111) and a return line (112) of a distribution grid (110) is below a predetermined threshold; upon the local pressure difference is determined to be below the predetermined threshold, generating a control signal comprising information instructing a local distribution system (150) to reduce outtake of heat or cold from the distribution grid (110); sending the control signal to a local control unit (140) of the local distribution system (150); and reducing, in response to the control signal, the outtake of heat or cold of the local distribution system (150) from the distribution grid (110). The distribution grid (110) may be a district heating grid or a district cooling grid. Also, a control server and a district thermal energy distribution system is presented.

Abstract: A method for controlling indoor climate in a portion (102) of a building (100) is presented. The method comprises: identifying (S402), based on a wireless communication based positioning function, electronic devices (204a, 204b, 204c) present in the portion (102) of the building (100); for each identified electronic device, determining whether the identified electronic device is associated with a user; determining (S406) an estimated total amount of heat dissipation present in the portion (102) of the building (100) based on an amount of heat dissipation associated with the respective user to which the respective identified electronic device is associated; and controlling (S408) indoor climate in the portion (102) of the building (100) based on the estimated total amount of heat dissipation present in the portion (102) of the building (100). Also, a server (106) and a system for performing the controlling are presented.

Abstract: A heat pump assembly (100) is presented. The heat pump assembly (100) comprises a heat pump (110) having a primary side inlet (122) and a primary side outlet (124); a primary side inlet valve assembly (126) comprising: a primary side inlet connection (126a) connected to the primary side inlet (122), a primary side inlet valve first conduit connection (126b) configured to be connected to a first conduit (12) of a thermal energy grid (10), and a primary side inlet valve second conduit connection (126c) configured to be connected to a second conduit (14) of the thermal energy grid (10); a first conduit temperature determining device (105a) configured to measure a local temperature, t1, of heat transfer liquid of the first conduit (12); a second conduit temperature determining device (105b) configured to measure a local temperature, t2, of heat transfer liquid of the second conduit (14); and a controller (108).

Abstract: The present invention relates to a distribution pump arrangement for a bi-directional hydraulic distribution grid (10).

Abstract: A filled trench is disclosed. The filled trench comprises: a pair of conduits (3a, 3b) for delivering fluid with a different temperature in each of the conduits, the pair of conduits being surrounded by filling material; a first section (5a) filled with a filling material of a first type (4a), wherein the first filled section (5a) of the filled trench occupies a space surrounding a first conduit (3a) of the pair of conduits; and a second section (5b) filled with a filling material of a second type (4b), wherein the second filled section (5b) of the filled trench occupies a space surrounding a second conduit (3b) of the pair of conduits. The filling material of the first type (4a) has a first thermal conduction coefficient and the filling material of the second type (4b) has a second thermal conduction coefficient, the second thermal conduction coefficient being different from the first thermal conduction coefficient.

Abstract: The present invention relates to a heat transfer system comprising a heating circuit having a feed conduit for an incoming flow of heat transfer fluid having a first temperature, and a return conduit for a return flow of heat transfer fluid having a second temperature, the second temperature being lower than the first temperature. The heat transfer system also includes a cooling circuit having a feed conduit for an incoming flow of heat transfer fluid having a third temperature, and a return conduit for a return flow of heat transfer fluid having a fourth temperature, the fourth temperature being higher than the third temperature, and a heat pump including a first heat exchanger having a first circuit for circulating heat transfer fluid and a second circuit for circulating heat transfer fluid.

Abstract: A central controller for controlling power consumption in a thermal energy system is disclosed, the energy system may include a plurality of heat pump assemblies and a plurality of cooling machine assemblies, each heat pump assembly being connected to a thermal energy circuit comprising a hot conduit and a cold conduit via a thermal heating circuit inlet connected to the hot conduit and via a thermal heating circuit outlet connected to the cold conduit, each cooling machine assembly being connected to the thermal energy circuit via a thermal cooling circuit inlet connected to the cold conduit and via a thermal cooling circuit outlet connected to the hot conduit.

Abstract: A thermal energy extraction assembly is disclosed, the thermal energy extraction assembly is configured to extract heat and/or cold from a thermal energy distribution grid. The assembly may include a connection circuit connecting the assembly to the grid; a first heat exchanger configured to exchange heat from a heating circuit to the grid; a second heat exchanger configured to extract heat from the grid to a cooling circuit; and a plurality of heat pumps each having a condenser side connected to the heating circuit and an evaporator side connected to the cooling circuit, the heat pumps being configured to pump heat from the cooling circuit to the heating circuit.

Abstract: The disclosure relates to a method for controlling a heat distribution system.

Abstract: The present invention relates to a flow controller configured to selectively act as a pump or as a flow regulator. The flow controller comprises: an inlet for a fluid; an outlet for the fluid; a pump assembly arranged between the inlet and the outlet and configured to pump the fluid through the flow controller from the inlet to the outlet; a hydro electrical generator assembly arranged between the inlet and the outlet, the hydro electrical generator assembly configured to allow the fluid flow through the flow controller from the inlet to the outlet and to generate electricity by transforming flow energy of the fluid flowing through the flow controller into electricity; and a mode controller configured to selectively set the flow controller in a pumping mode or in an electricity generating mode.

Abstract: The present invention relates to a method for controlling setting of reversible heat pump assemblies (100) of a district thermal energy distribution system (1) in either a heating mode or a cooling mode.

Abstract: A reversible heat pump assembly (100) is disclosed. The heat pump assembly (100) comprises a heat pump (110) having a first side (120) and a second side (130), the heat pump (110) being configured to transfer heat from the first side (120) to the second side (130) or vice versa; a first side inlet valve assembly (126) having a heat pump connection (126a) connected to the first side (120), and hot and cold conduit connections (126b; 126c) arranged to be connected to a thermal energy grid (10) comprising hot and cold conduits (12; 14); a second side outlet valve assembly (136) having a heat pump connection (136a) connected to the second side (130), and heating and cooling circuit connections (136b; 136c) arranged to be connected to heating and cooling circuits (130; 140), respectively. The reversible heat pump assembly (100) is configured to be selectively set in either a heating mode or a cooling mode.

Abstract: The disclosure relates to a method for controlling a thermal energy distribution system, the method comprising:—determining forecast data pertaining to expected overall outtake of heat and/or cooling over time from a distribution grid by local distribution systems connected to the distribution grid, and to expected production capacity of heat and/or cooling in one or more production plants,—determining, at a control server, a time resolved control signal, the control signal being based on forecast data and being associated with at least one local control unit,—sending the control signal from the control server to the associated local control unit,—receiving the control signal at the associated local control unit,—regulating over time, in response to the control signal, the outtake of heat and/or cooling of the local distribution system from the distribution grid.

Abstract: The present invention relates to a thermal server plant (40) arranged to be connected to a thermal energy circuit (10) comprising a hot conduit (12) configured to allow heat transfer liquid of a first temperature to flow therethrough, and a cold conduit (14) configured to allow heat transfer liquid of a second temperature to flow therethrough. The thermal server plant comprises a balancing device (41) arranged to be connected to the hot conduit and to the cold conduit for selectively allowing heat transfer liquid to flow from the hot conduit, via a regulator (42) and a heat exchanger (44), into the cold conduit or allowing heat transfer liquid to flow from the cold conduit, via the regulator and the heat exchanger, into the hot conduit. The flow direction is determined by a pressure difference between the hot and cold conduits.

Abstract: A controller configured to selectively set a reversible heat pump assembly (100) in either a heating mode or in a cooling mode is presented. The controller comprising a control circuit (44) configured to: for a time period, determine, using a demand determining function (50), a heating demand for heat from one or more local heating circuits (140) connected to the reversible heat pump assembly (100) and a cooling demand for cold from one or more local cooling circuits (140) connected to the reversible heat pump assembly (100); generate, using a control function (52), a control signal indicative of if the reversible heat pump assembly (100) is to be set in either the heating mode or in the cooling mode, wherein the control function is configured to use the heating demand and the cooling demand as input data; and send, using a transmission function (54), the control signal to a heat pump (110) of the reversible heat pump assembly (100).

Abstract: A method for handling surplus or deficit of energy in local energy systems (30) is presented. The method comprising; determining an accumulator status based on data pertaining to an accumulator (20) of a moveable device (10); determining energy status of each of a plurality of local energy systems (30) based on data pertaining to the respective local energy system 30; scoring, based on the determined accumulator status and the determined energy statuses, each of the local energy systems (30); determining, based on the respective scores of each of the plurality of local energy systems (30), a local energy system (30), among the plurality of local energy systems (30), to which the moveable device (10) is to be directed. Also a server (40) configured to handling surplus or deficit of energy in local energy systems is presented.

Abstract: A combined cooling and heating system including a district cooling grid having a feed conduit for an incoming flow of cooling fluid having a first temperature, and a return conduit for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature; a local cooling system being configured to absorb heat from a first building and comprising a heat exchanger having a heat exchanger inlet and a heat exchanger outlet; and a local heating system being configured to heat the first or a second building and comprising a heat pump having a heat pump inlet and a heat pump outlet. The heat exchanger inlet is connected to the feed conduit of the district cooling grid; and the heat pump inlet is connected to the return conduit of the district cooling grid and to the heat exchanger outlet.

Abstract: The invention refers to a heating system (100) comprising a district cooling grid (1) and a local heating system (200) configured to heat a building and/or to heat tap water for the building. The heating system has a feed conduit (5) for an incoming flow of cooling fluid having a first temperature, and a return conduit (8) for a return flow of cooling fluid having a second temperature, the second temperature being higher than the first temperature. The local heating system (200) comprises a heat pump (10) having an inlet (10a) connected to the return conduit (8) of the district cooling grid (1) and an outlet (10b) connected to the feed conduit (5) of the district cooling grid (1).