CONTROLLING OF A DISTRICT THERMAL ENERGY DISTRIBUTION SYSTEM

    公开(公告)号:US20230213212A1

    公开(公告)日:2023-07-06

    申请号:US17998983

    申请日:2021-05-25

    Abstract: The present invention relates to a method for controlling one or more heat pumps (110) connected to a distribution grid (10) for fluid-based distribution of heating and cooling in order to, at least partly, compensate for a cold outtake from the distribution grid (10) by a first cooling machine (120) connected to the distribution grid (10). Alternatively, or in combination, one or more cooling machines (120) connected to the distribution grid (10) may be controlled in order to, at least partly, compensate for a heat outtake from the distribution grid (10) by a first heat pump (120) connected to the distribution grid (10). The controlling is made a control server (200) monitoring outtake of heat and/or cold from the distribution grid (10) by the heat pumps (110) and cooling machines (120) connected to the distribution grid (10). The control server (120) generates and sends out control messages to the heat pumps and/or cooling machines.

    IMPROVED EFFICIENCY FOR A HEAT EXTRACTING SYSTEM AND/OR A HEAT DEPOSITING SYSTEM

    公开(公告)号:US20230118895A1

    公开(公告)日:2023-04-20

    申请号:US17905809

    申请日:2021-03-10

    Abstract: A heat extracting system (100) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) 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 (200) arranged to be connected to a thermal energy circuit (300) comprising a hot conduit (302) configured to allow thermal fluid of a first temperature to flow therethrough, and a cold conduit (304) 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 (200) is disclosed.

    Heat transfer system
    64.
    发明授权

    公开(公告)号:US11226108B2

    公开(公告)日:2022-01-18

    申请号:US16314446

    申请日:2017-06-29

    Inventor: Per Rosén

    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.

    CONTROLLING OF A THERMAL ENERGY DISTRIBUTION SYSTEM

    公开(公告)号:US20210381715A1

    公开(公告)日:2021-12-09

    申请号:US17309564

    申请日:2019-12-03

    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. The method comprises: determining, at a control server, a first set of the reversible heat pump assemblies (100) to be set in the heating mode during a future time period; determining, at the control server, a second set of the reversible heat pump assemblies (100) to be set in the cooling mode during the future time period, wherein the second set of the reversible heat pump assemblies (100) is separate from the first set of the reversible heat pump assemblies (100); sending, from the control server (200) to the reversible heat pump assemblies (100) of the first set of the reversible heat pump assemblies (100), a respective control message to set the respective reversible heat pump assembly (100) in the heating mode for the future time period; sending, from the control server (200) to the reversible heat pump assemblies (100) of the second set of the reversible heat pump assemblies (100), a respective control message to set the respective reversible heat pump assembly (100) in the cooling mode for the future time period; and setting the respective reversible heat pump assembly (100) in either the heating mode or the cooling mode for the future time period.

    SYSTEMS AND METHODS FOR THE CAPTURE OF HEAT ENERGY, LONG-DISTANCE CONVEYANCE, STORAGE, AND DISTRIBUTION OF THE CAPTURED HEAT ENERGY AND POWER GENERATED THEREFROM

    公开(公告)号:US20210355922A1

    公开(公告)日:2021-11-18

    申请号:US17390127

    申请日:2021-07-30

    Applicant: Lochterra Inc.

    Abstract: A stand-alone long-distance closed-loop heat energy capture, conveyance, and delivery system, comprises three closed-loop modules in serial communication. The first module is in communication with a first closed-loop piping infrastructure interconnected with a source of heat energy, and has a LBP liquid circulating therein whereby the LBP liquid is converted into its gas phase when flowing through the source of heat energy thereby capturing a portion of heat energy therefrom, and is converted into its liquid phase when flowing through a first heat exchanger that transfers the captured-heat energy to a second closed-loop piping infrastructure wherein also is circulating a LBP liquid. The second closed-loop module may extend for long distances. The captured-heat energy in the second module is transferred to a third closed-loop piping infrastructure wherein is also circulating a LBP liquid. The captured-heat energy is transferred from the third module to a delivery site.

    ENERGY DISTRIBUTING SYSTEM
    67.
    发明申请

    公开(公告)号:US20210293417A1

    公开(公告)日:2021-09-23

    申请号:US16332371

    申请日:2017-09-14

    Abstract: A local energy distributing system includes a local feed conduit; a local return conduit; a central heat exchanger connected to a heating grid having a feed conduit for an incoming flow of heat transfer fluid having a first temperature in the range of 50-120° C., 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, wherein the central heat exchanger is configured to exchange heat from the incoming flow of heat transfer fluid to an outgoing flow of local heat transfer fluid in the local feed conduit. The system also includes a plurality of local heating systems, each having an inlet connected to the local feed conduit and an outlet connected to the local return conduit, wherein each local heating system is configured to provide hot water and/or comfort heating to a building.

    COMBINED HEATING AND COOLING SYSTEM

    公开(公告)号:US20210231319A1

    公开(公告)日:2021-07-29

    申请号:US16313910

    申请日:2017-06-29

    Inventor: Per Rosén

    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.

    Method for controlling heat transfer between a local cooling system and a local heating system

    公开(公告)号:US10852022B2

    公开(公告)日:2020-12-01

    申请号:US16313914

    申请日:2017-06-29

    Inventor: Per Rosén

    Abstract: The disclosure relates to a method for controlling heat transfer between a local cooling system and a local heating system, the method comprising: determining a local energyconsumption need (LCC1, LCC2) of the local cooling system; determining a local energy consumption need (LHC1, LHC2) of the local heating system; controlling, based on the local energy consumption need (LCC1, LCC2) of the local cooling system and the local energy consumption need (LHC1, LHC2) of the local heating system, a heat pump (50, 50′) connected between the local cooling system and the local heating system and configured to transfer heat from the local cooling system to the local heating system.

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