E.on Sverige Ab

Helen Carlström

Bengt Lindoff

Per Rosén

Jacob Skogström

Fredrik Rosenqvist

Jonas Ekestubbe

A heat pump assembly () arranged to be connected to a thermal energy circuit () comprising a hot conduit () configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit () configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a cooling machine assembly () arranged to be connected to a thermal energy circuit () comprising a hot conduit () configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit () configured to allow thermal fluid of a second temperature to flow therethrough.

Thermal energy assembly

Disclosed is a method for controlling a control valve (), wherein the control valve () is configured to control a flow of heat transfer fluid to a thermal energy extraction unit (). The method comprising: reviewing (S) a demand signal for the control valve (); checking (S) if the demand signal is indicative of setting the control valve () in a hysteresis interval for the control valve (); and upon the demand signal is indicative of setting the control valve () in the hysteresis interval, alternatingly (S) setting the control valve () in an open state above the hysteresis interval and setting the control valve () in a closed state.

Method and control unit for controlling a control valve controlling a flow of heat transfer fluid into a thermal energy extraction unit

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

Method and device for controlling indoor climate in a portion of a building

A heat extracting system () arranged to be connected to a thermal energy circuit () comprising a hot conduit () configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit () configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature, and a heat depositing system () arranged to be connected to a thermal energy circuit () comprising a hot conduit () configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit () configured to allow thermal fluid of a second temperature to flow therethrough, the second temperature is lower than the first temperature. Also a heat depositing system () is disclosed.

Efficiency for a heat extracting system and/or a heat depositing system

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.

Thermal energy extraction assembly

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.

Growing community of inventors

Bjärred, Sweden

Helen Carlström