High-efficient central chiller plant system with variable load by phase change material thermal energy storage

    公开(公告)号:US12055303B2

    公开(公告)日:2024-08-06

    申请号:US17545636

    申请日:2021-12-08

    IPC分类号: F24D11/02

    摘要: A high-efficient central chiller plant system with variable load by phase change material thermal energy storage includes a refrigeration unit and a phase change thermal energy storage. The refrigeration unit operates under the highest COP. If the refrigerating output is higher than the demand of cooling load, the phase change thermal energy storage stores energy by the phase change. Contrarily, if the refrigerating output cannot meet the demand of cooling load, the phase change thermal energy storage releases energy to supply the insufficient cooling load of the refrigeration unit. So that users can set the operation strategy of the refrigeration unit according to the usage statistics, and let the refrigeration unit operate efficiently with the cooperation of the phase change thermal energy storage, thereby effectively improving the energy efficiency of the system operation to save energy. Compared with the existing central chiller system, it saves energy more than 40%-70%.

    STORAGE SOURCE AND CASCADE HEAT PUMP SYSTEMS

    公开(公告)号:US20230332807A1

    公开(公告)日:2023-10-19

    申请号:US18336976

    申请日:2023-06-17

    摘要: A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes a heating fluid circuit, a cooling fluid circuit, and a storage fluid circuit. A thermal system of the HVACR system absorbs energy from the storage fluid circuit and rejects it to the heating fluid circuit. The storage fluid circuit includes thermal storage tanks containing thermal storage material that can provide energy for heating or absorb energy for cooling depending on the state of the thermal storage material. Heating can be provided using the heating fluid circuit and the heat provided by the thermal system. Cooling can be provided using the cooling fluid circuit by absorbing energy from the conditioned space using a cooling fluid and rejecting energy from the cooling fluid to the storage fluid circuit including the thermal storage tanks. The thermal storage tanks can also have heat added to them using an air source heat pump system to provide sufficient storage for heating operations.

    Heat distribution device
    3.
    发明授权

    公开(公告)号:US11788775B2

    公开(公告)日:2023-10-17

    申请号:US17420930

    申请日:2020-01-16

    申请人: HEATAMP SWEDEN AB

    发明人: Ingemar Hallin

    摘要: There is disclosed a heat-transferring device comprising a buffer tank (1), a reactor vessel (2) in thermal contact with the buffer tank, wherein an active substance is held inside the reactor vessel, a burner (A), a reactor heating loop adapted to transfer heat from the burner to the active substance in the reactor vessel, a reactor cooling loop adapted to transfer heat from the active substance in the reactor vessel to the buffer tank, a volatile liquid reservoir (14) in fluid contact with the reactor vessel, an evaporator (15) in fluid contact with the volatile liquid reservoir, a volatile liquid in the volatile liquid reservoir, with the ability to be absorbed by the active substance at a first temperature and desorbed by the active substance at a higher temperature, an exhaust gas pipe (10,11,12) from the burner to the volatile liquid reservoir to heat it.

    Multiple channel heat exchanger
    5.
    发明授权

    公开(公告)号:US11754347B2

    公开(公告)日:2023-09-12

    申请号:US17509291

    申请日:2021-10-25

    申请人: Tony Alley

    发明人: Tony Alley

    摘要: A system including a heat exchanger with two or more channels is provided. The system includes means for one or more source channels and one or more load channels. The source channels and load channels are enclosed for containing and channeling a heat-bearing fluid through the heat exchanger. The source channels and load channels are integrated as components of complete source circuits and load circuits with the purpose of conveying the heat-bearing fluids between heat/cold loads and the heat exchanger. The system also includes means for providing thermal storage that may be used for sensible heat storage, latent heat storage, or a combination of sensible heat storage and latent heat storage. Within the system there are means for putting the source channels, load channels and thermal storage means in intimate thermal communication with one another for the purpose of exchanging heat in all flow-directions.

    HEAT PUMP ASSEMBLY AND CONTROLLING OF THE SAME

    公开(公告)号:US20220146126A1

    公开(公告)日:2022-05-12

    申请号:US17310874

    申请日:2020-02-25

    申请人: E.ON SVERIGE AB

    摘要: 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). The controller is configured to: receive hand t2 from the first and second conduit temperature determining devices (105a; 105b), receive information pertaining to whether the heat pump (110) is a heating mode heat pump or a cooling mode heat pump. The controller is configured to upon the heat pump (110) is the heating mode heat pump and upon t2>t1 set the primary side inlet valve assembly (126) to fluidly connect the primary side inlet valve first conduit connection (126b) and the primary side inlet connection (126a), primary side inlet valve assembly (126) to fluidly connect the primary side inlet valve or upon the heat pump (110) is the heating mode heat pump and upon t1>t2, set the second conduit connection (126c) and the primary side inlet connection (126a). The controller is configured to upon the heat pump (110) is the cooling mode heat pump and upon t1>t2, set the primary side inlet valve assembly (126) to fluidly connect the primary side inlet valve second conduit connection (126c) and the primary side inlet connection (126a), or upon the heat pump (110) is the cooling mode heat pump and upon t2>t1, set the primary side inlet valve assembly (126) to fluidly connect the primary side inlet valve first conduit connection (126b) and the primary side inlet connection (126a).

    Manifold, a buffer tank comprising the manifold, and a method for operating a heat exchange system

    公开(公告)号:US11300301B2

    公开(公告)日:2022-04-12

    申请号:US15752707

    申请日:2015-11-15

    申请人: David Patrick Rea

    发明人: David Patrick Rea

    摘要: A manifold (15) comprising a flow chamber (35) for receiving flow heat exchange water from respective heat sources (3, 5, 7) through first inlet ports (47, 48) and from which the flow heat exchange water is delivered to heat exchange circuits (8, 9) through flow ports (57, 58). A return chamber (36) in the manifold (15) for receiving return heat exchange water from the heat exchange circuits (8, 9) through return ports (57, 58), and from which the return heat exchange water is returned to some of the heat sources (3, 5, 7) through first outlet ports (53, 54). A bypass chamber (37) located in the manifold (15) between the flow chamber (35) and the return chamber (36) receives flow water from the flow chamber (35), which has not been drawn off by the heat exchange circuits (8, 9), through a communicating passageway (40). Heat exchange water from the bypass chamber (37) is returned through second outlet ports (55, 56) to others of the heat sources (3, 5, 7).

    HEAT DISTRIBUTION DEVICE
    10.
    发明申请

    公开(公告)号:US20220074602A1

    公开(公告)日:2022-03-10

    申请号:US17420930

    申请日:2020-01-16

    申请人: HEATAMP SWEDEN AB

    发明人: Ingemar HALLIN

    摘要: There is disclosed a heat-transferring device comprising a buffer tank (1), a reactor vessel (2) in thermal contact with the buffer tank, wherein an active substance is held inside the reactor vessel, a burner (A), a reactor heating loop adapted to transfer heat from the burner to the active substance in the reactor vessel, a reactor cooling loop adapted to transfer heat from the active substance in the reactor vessel to the buffer tank, a volatile liquid reservoir (14) in fluid contact with the reactor vessel, an evaporator (15) in fluid contact with the volatile liquid reservoir, a volatile liquid in the volatile liquid reservoir, with the ability to be absorbed by the active substance at a first temperature and desorbed by the active substance at a higher temperature, an exhaust gas pipe (10,11,12) from the burner to the volatile liquid reservoir to heat it.