16results about "District heating system" patented technology

The present invention relates to an energy system (1) and a method for operating the energy system (1), which comprises a hydrogen production unit (2) with at least one electrolyzer (3) for water electrolysis thermally coupled to a cooling water circuit (4), and a heat pump (5) whose heat source side (6) is thermally coupled to the cooling water circuit (4) and whose heat sink side (7) is connected to a district or commercial heating circuit (10) via a heat exchanger (8). According to the invention, a heat storage device (9) is provided in the district or commercial heating circuit (10), whose return line (11) is connected after the heat exchanger (8) and whose feed line (12) is connected before the heat exchanger (8) of the heat pump (5), so that the return temperature of the district or commercial heating circuit (10) is increased by heat from the heat storage device (9).

This disclosure relates to a thermal energy storage plant for storing thermal energy from an energy source, the storage plant comprising: a liquid reservoir for being coupled to an energy source and compris- ing a reservoir volume with a top side, said top side coinciding with a liquid level of a thermal energy storage liquid in the liquid reservoir, and a surface cover comprising an insulating material, such as extruded polystyrene or mineral wool, for retaining thermal energy stored in said liquid, said surface cover at least partly covering said top side, said surface cover being divided into at least a first and a second surface cover segment positioned adjacently to each other and each comprising a circumferential periphery, wherein the first surface cover segment further comprises a first tilting device, wherein the second surface cover segment similarly further comprises a second tilting device, wherein the storage plant further comprises a solar energy system for harnessing solar energy, the solar energy system comprising at least one photovoltaic cell and / or a flowing fluid configured to be heated by solar energy, the solar energy system being mounted on a mounting system installed on and / or in and / or at an exterior surface of the first surface cover segment and / or on and / or in and / or at an exterior surface of the second surface cover segment.

The utility model discloses a novel heating equipment. The novel heating equipment includes screw water cooling unit, including the water outlet pipeline, return water pipeline, bypass pipeline, the fan -coil unit, air conditioner water distributor, condensing evaporimeter through the water outlet pipeline and connect gradually, and through return water pipeline, the cold water pump, air conditioner water collector that connects gradually, and the water outlet pipeline is connected with return water pipeline through bypass pipeline, condensing evaporimeter, hot water tank, hot water pump, install between hot water tank and the water inlet end of cold water pump, heat exchange return water pipe, install between return water pipeline and hot water tank, first valve, install on heat exchange return water pipe, be used for closing and opening heat exchange return water pipe. The utility model provides a kind of novel heating equipment, by setting hot water tank, hot water pump, heat exchange return water pipe and first valve access to existing screw cold water chiller unit, to realize heating effect, energy recovery, simple structure, reduce cost.

A method is provided for the controlled routing of hydronic flow within a climate control system. The method includes determining a condition type request for a plurality of area zones corresponding to a particular thermal zone. The method further includes determining a supply temperature type associated with at least a supply line of a primary supply loop and a supply line of a secondary supply loop. The supply temperature type is indicative of a thermal transport fluid temperature within the respective supply line. The method further includes providing an actuation signal set to a valve assembly. The actuation signal set is configured to describe a position for each value of the valve assembly and the position for each valve is based on the conditioning type request and the determined supply temperature types.

A method and system for detecting operational irregularities in a thermal energy exchange system. Thermal energy exchange system comprises a first side, a second side and an interface between the first side and the second side. Heating / cooling is generated at the first side upstream to the interface, and heating / cooling is consumed at the second side downstream to the interface. The interface is provided by means of a plurality of substations connected to the first side and the second side, each substation being configured to facilitate thermal energy exchange between the first side and the second side. Measurement data indicative of one or more operational parameters of the first side is obtained, wherein the measurement data is collected by means of a measurement system. The measurement data is monitored so as to identify operational irregularities at the interface and / or the second side.

A residential heating station (100) with a heat exchanger (300) is provided, featuring a first, second, third, and fourth connection (301-304). A first connection (301) is connected to a heating water supply (340), a second connection (302) to a heating water return (350), a third connection (303) to a domestic cold water return (360), and a fourth connection (304) to a domestic hot water supply (370). The residential heating station (100) also includes a thermostatic unit (200) with a temperature sensor (210) and a valve (220). The temperature sensor (210) extends at least partially into the fourth connection (304). The valve (220) is located in the heating water supply (340). A functional connection exists between the temperature sensor (210) and the valve (220), so that the valve (220) is controlled depending on the temperature of the water at the fourth connection (304) detected by the temperature sensor (210).

A modular fluid-fluid heat transfer arrangement (100) is disclosed. The arrangement (100) comprising first inlet and outlet junction pipes (111, 112), second inlet and outlet junction pipes (121, 122); and a plurality of heat pump modules (130a, 130b, 130c), each comprises: first inlet and outlet ports (131a, 131b); second inlet and outlet ports (132a, 132b); control means (133); and a refrigerant circulation path (134) including: a first heat exchanger unit (135) fluidly connected to said first inlet and outlet ports (131a, 131b); a compressor (136); a second heat exchanger unit (137) fluidly connected to said second inlet and outlet ports (132a, 132b); and an expander (138); wherein, when in use, said plurality of heat pump modules (130a, 130b, 130c) are connected in parallel to each other, by their respective first inlet and outlet ports (131a, 131b) being connected to said first inlet and outlet junction pipes (111, 112), respectively, and by their respective second inlet and outlet ports (132b, 132a) being connected to said second inlet and outlet junction pipes (122, 121), respectively. The disclosure further relates to a method (300) for controlling the arrangement (100).

A residential heating station (100) with a heat exchanger (300) is provided, featuring a first, second, third, and fourth connection (301-304). A first connection (301) is connected to a heating water supply (340), a second connection (302) to a heating water return (350), a third connection (303) to a domestic cold water return (360), and a fourth connection (304) to a domestic hot water supply (370). The residential heating station (100) also includes a thermostatic unit (200) with a temperature sensor (210) and a valve (220). The temperature sensor (210) extends at least partially into the fourth connection (304). The valve (220) is located in the heating water supply (340). A functional connection exists between the temperature sensor (210) and the valve (220), so that the valve (220) is controlled depending on the temperature of the water at the fourth connection (304) detected by the temperature sensor (210).

A method of operating an HVAC system that includes a thermal energy source and a thermal energy transfer device, using a flow regulating device arranged to regulate a flow rate of a fluid between the thermal energy source and the thermal energy transfer device, the method including determining a supply temperature of the fluid, determining a return temperature of the fluid, determining the flow rate of the fluid, and regulating the flow rate of the fluid such as to maintain a target temperature difference between the supply temperature and the return temperature, while ensuring that the return temperature is above a minimum return temperature threshold and the flow rate is above an operational flow rate threshold of the thermal energy transfer device.

The invention relates to a method for monitoring the condition of a pipe in a district heating distribution network (1) comprising a plurality of user sites (3), the method having the steps of a) determining the flow rate (Q) and the inlet fluid temperature (T1) at a user site (3), b) detecting an event of fluid consumption, c) determining the change in the inlet fluid temperature (T1) over the time period of the event, d) calculating a characteristic value on the basis of the determined change in the inlet fluid temperature (T1) and the flow rate, e) repeating steps b) to d) over a period of time, and f) monitoring the characteristic value (X) or a derived value based on the characteristic value as an indicator of the condition of the pipe connected to the user site (3).

a control unit (133) connected to each control unit (133) of the other heat pump modules (130a, 130b) via a communication channel (140); and a memory (139) in which heat transfer device configuration information for the associated heat pump modules (130a, 130b) is stored, the method (200) including: a) transmitting the associated heat transfer device configuration information over the communication channel (140); b) receiving the associated heat transfer device configuration information; c) storing the received heat pump module configuration information to provide the heat transfer device configuration information; d) determining a selected master control unit from the control units (133) based on the heat transfer device configuration information, wherein a control unit (133) different from the master control unit is defined as a slave control unit; and e) transmitting operational control information from the master control unit to the slave control units. The present disclosure further relates to a modular fluid-to-fluid heat transfer device (100).

The invention relates to a municipal drinking water distribution network with a plurality of drinking water pipes for supplying end consumers with drinking water, wherein there is at least one ice storage system at at least one of the end consumers to supply heating and / or cooling energy to the end consumer, wherein the ice storage system has pipes that define a cooling network, wherein the pipes of the cooling network are laid in heat exchange with the drinking water pipes. The invention also relates to a method for cooling a municipal drinking water network, wherein a cooling network of a private or municipal ice storage system is used to influence the temperature of the drinking water in the municipal drinking water network.

The invention relates to a method for monitoring the state-of-condition of pipes in a district heating distribution network (1), the heating distribution network comprising a plurality of consumer sites (3), with the following steps: a) determining a flow rate (q) and an inlet fluid temperature (T1) at a consumer site (3), b) detecting an event of fluid consumption, c) determining a change of the inlet fluid temperature (T1) in the time period of the event, d) calculating a characteristic value based on the determined change of the fluid inlet temperature (T1) and the flow rate, e) repeating the steps b) to d)for a period of time, and f) monitoring the characteristic values (k) or derived values based on the characteristic values as an indicator for the state-of-condition of a pipe connected to the consumer site (3).

An aspect of the present disclosure provides a district cooling system including a cooling loop configured to cool one or more buildings, a conduit configured to draw water from a water body for cooling the cooling loop and a channel configured to receive the water that has been used to cool the cooling loop and to discharge the water into the water body The channel includes one or more ventilation shafts provided at least partially along the channel to cool the water in the channel. The cooling loop is thermally coupled to and fluidly isolated from the conduit.

A heating system (110) for heating a main fluid, a first circuit (2) for a first refrigerant fluid and a second circuit (3) for a second refrigerant fluid, a first heat exchanger (4) arranged on the first circuit (2) for heat exchange between the first refrigerant fluid and a first heat transfer fluid, a first compressor (5) arranged downstream of the first heat exchanger (4) on the first circuit (2), a second heat exchanger (6) interposed between the first circuit (2) and the second circuit (3) for heat exchange between the first refrigerant fluid and the second refrigerant fluid, the second heat exchanger (6) being arranged downstream of the first compressor (5) on the first circuit (2), a first expansion valve (7) arranged downstream of the second heat exchanger (6) on the first circuit (2), a second compressor (8) arranged downstream of the second heat exchanger (6) on the second circuit (3), a third heat exchanger (9) arranged downstream of the second compressor (8) on the second circuit (3) for heat exchange between the second refrigerant fluid and a second heat transfer fluid, at least one heat pump module (1) including, a heat exchange device (101) operatively associated with at least the second heat transfer fluid, a heating system (110) including, a distribution network (120) for distributing the main fluid to a plurality of users, a district heating plant (100) including.