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.

A fluid transportation network (1) comprises a plurality of parallel zones (Z1, Z2), fed by a common supply line (L), with a regulating zone valve (V1, V2) in each zone (Z1, Z2) for regulating a flow of fluid (.sub.1, .sub.2) through the respective zone (Z1, Z2). A processing unit (RE) receives valve positions (pos.sub.1, pos.sub.2) of the regulating zone valves (V1, V2) and determines and sets an adjusted valve position for a line valve (VE) arranged in the supply line (L), depending on the valve positions (pos.sub.1, pos.sub.2) of the regulating zone valves (V1, V2). A processing unit (RE) further receives a measurement of a total flow of fluid (.sub.tot) through the supply line (L) and determines and sets adjusted valve positions for the regulating zone valves (V1, V2), depending on the measurement of the total flow of fluid (.sub.tot) through the supply line (L).

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. The thermal energy distribution system is also claimed.

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. The heat exchanger is configured to alter the temperature of the heat transfer liquid flowing through the balancing device by selectively cool heat transfer liquid from the hot conduit or heat transfer liquid from the cold conduit.

A heat pump network is described. In one aspect a distributed heat pump network used in a district heating architecture is described.

A heat pump network is described. In one aspect a distributed heat pump network used in a district heating architecture is described.

Certain aspects of the present disclosure provide techniques for recovery of waste energy from a battery energy storage system. A system includes a battery energy storage system including one or more rechargeable batteries; an energy recovery system coupled to the battery energy storage system, wherein the energy recovery system is configured to: capture heat generated by one or more of charging and discharging the one or more rechargeable batteries; and store or use energy associated with the captured heat.

The present invention relates to a district thermal energy distribution system comprising a thermal energy circuit comprising a hot and a cold conduit for allowing flow of heat transfer liquid therethrough, a thermal energy consumer heat exchanger and a thermal energy generator heat exchanger. The thermal energy consumer heat exchanger is selectively connected to the hot conduit via a thermal energy consumer valve or a thermal energy consumer pump. The thermal energy generator heat exchanger is selectively connected to the cold conduit via a thermal energy generator valve or a thermal energy generator pump.

The present invention relates to 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 selectively connected, via a pump or a valve to the hot conduit. The local thermal energy generator assembly is selectively connected, via a pump or a valve to the cold conduit. The use of either the valve or the pump is controlled by determining a local pressure difference between heat transfer liquid of the hot and the cold conduits.

A heat exchanger (1) is specified having a housing (2), in which a primary side (3) having a primary-side flow path (5) is arranged between an upstream connector 6) and a downstream connector (7) and a secondary side (4) having a secondary-side flow path (10) is arranged between an inflow connector (11) and an outflow connector (12), wherein the primary side (3) and the secondary side (4) are in heat-transferring connection along a heat exchanger section (15) and a first temperature sensor (16) is arranged in the region of the outflow connector (12). The desire is to improve the ability to regulate and monitor the heat exchanger (1). To this end, there is provision for at least one second temperature sensor (18-20, 24, 25) to be arranged on the heat exchanger section (15) and for both temperature sensors (16; 18-20, 24, 25) to be connected to an evaluation device (21).