33results about "Geothermal heating energy" patented technology

The invention relates to a method for optimizing a district heating network (1) comprising outgoing supply pipes and incoming return pipes, wherein a heat carrying fluid is circulated to be utilized for residential and commercial heating requirements. For storing excess thermal energy available at the district heating network, the method involves the steps of implementing more than one ground-based borehole thermal energy storage (4) as distributed heat storages at different locations of or along the district heating network (1). Each heat storage (4) is adapted to receive thermal energy from various forms of heat sources, which heat sources may be found at different locations of or along the district heating network (1) such, that the heat sources and the heat storages forming nodes in the district heating network (1). Excess thermal energy available to one node of the district heating network (1) is used to charge a borehole thermal energy storage (4) at one or several nodes, and thermal energy available from the borehole thermal energy storages (4) is at disposal to be used to heat the heat carrying fluid circulated in the supply pipes of the district heating network.

A thermal energy transfer arrangement is provided, comprising a building with a sprinkler system and a heat exchanger for heating the building. The arrangement further comprises a sprinkler reservoir arranged for holding a volume of water, wherein the sprinkler system is in fluid communication with the sprinkler reservoir and a thermal energy transfer system, comprising a primary heat pump, which is in fluid communication with the sprinkler reservoir and the heat exchanger, and which is arranged to transfer thermal energy from the sprinkler reservoir to the heat exchanger. By virtue of the arrangement, water in an existing sprinkler reservoir may be used as a source of thermal energy for heating the building.

The invention relates to the field of geothermal heating temperature control, and provides a geothermal heating temperature control method and system based on environmental perception, and the method comprises the steps: obtaining indoor and outdoor environmental perception data through indoor perception equipment and outdoor monitoring channels of each heating room; preprocessing the indoor and outdoor environment sensing data; according to the preprocessed indoor and outdoor environment sensing data, the indoor temperature change trend of each heating room is predicted, and a temperature prediction change curve is obtained; when the fluctuation quantity of the temperature prediction change curve reaches the adjustment requirement, optimizing control parameters of a geothermal heating system adopted by each heating room according to the temperature prediction change curve by taking the preset comfortable room temperature and the minimum geothermal heating energy consumption as targets to obtain optimal geothermal control parameters; and dynamically adjusting the control parameters of the geothermal heating system according to the optimal geothermal control parameters. By means of the method, the comfortable room temperature can be preset, geothermal heating energy consumption can be minimized, the indoor comfort degree is improved, and meanwhile heating energy consumption is reduced.

The invention relates to a water source heat pump system (10) using thermal energy of water (11) of the ocean, lake or river, comprising a first heat exchanger (12), a compressor (13), a second heat exchanger (14) and an expander and / or throttle valve (15), in which the first heat exchanger (12) is designed to heat a heat pump process medium using the thermal energy of the water (11) and the second heat exchanger (14) is designed to heat the heat pump process medium using the thermal energy of the water (11). Wherein the compressor (13) is designed to compress the heat pump process medium downstream of the first heat exchanger (12) and upstream of the second heat exchanger (14), and wherein the second heat exchanger (14) is designed to transfer heat from the heat pump process medium to a process medium (16) of a consumer, the expansion machine and / or throttle valve (15) is designed to expand the heat pump process medium downstream of the second heat exchanger (14) and upstream of the first heat exchanger (12), the first heat exchanger (12) being arranged in the water (11) below the water surface (18) of the ocean, lake or river, or alternatively above the water surface (18) on a platform (23) located in the ocean, lake or river, and the expansion machine and / or throttle valve (15) being designed to expand the heat pump process medium downstream of the second heat exchanger (14) and upstream of the first heat exchanger (12). Wherein the second heat exchanger (14), the compressor (13) and the expansion machine and / or throttle valve (15) are arranged on the land, and wherein the first heat exchanger (12) is connected to the compressor (13) and the expansion machine and / or throttle valve (15) arranged on the land via a line system (20) for the heat pump process medium.

Method for controlling the operation of a heat pump. Method for controlling the operation of a heat pump (10) connected to hot (22) and cold (24) buffer tanks, capable of operating according to at least one first mode of heat production only, a second of cold production only and a third of combined cold and heat production, the triggering of the different modes taking place at a given instant t as a function of the measured temperatures of the buffer tanks and at least one piece of information representative of a future need for heat or cold production for the buffer tanks.

The circulation pump with internal or external control, with or without user interface, with or without bus or other control, with or without volume flow sensor, with or without temperature sensor, is equipped with a control algorithm that determines the Reynolds number of the flow and controls the pump performance so that the flow remains in the border range between laminar and turbulent.

The various embodiments described herein include devices and systems for thermal energy storage. A single-temperature-thermal-energy storage (SITTES) system for desalinating seawater and / or producing electrical power is described. The SITTES system includes insulated tanks, a molten eutectic salt media arranged within the insulated tanks, heat exchangers arranged within the insulated tanks, and an outlet. In the SITTES system the heat exchangers are coupled to one another and configured to transfer heat between the salt media and a seawater media, and the outlet is configured to output a steam portion of the seawater media, thereby providing desalination of the portion of the seawater media and steam for electrical power generation.

The disclosure relates to an arrangement (100) for heating a building comprising an air-liquid heat pump (130), a buffer tank (140) configured to store a heat buffer liquid in an internal volume thereof, said internal volume having a first portion (140a) and a second portion (140b); and a switchable conduit system (150); wherein, when the arrangement (100) is configured to operate in a heating operational mode, the switchable conduit system (150) is configured to supply buffer liquid heated by the heat pump (130) to the first portion (140a) of the buffer tank (140) and retrieve buffer liquid from the second portion (140b) of the buffer tank (140), and, when the arrangement (100) is configured to operate in a defrosting operational mode, the switchable conduit system (150) is configured to supply buffer liquid cooled by the heat pump (130) to the second portion (140b) of the buffer tank (140) and retrieve buffer liquid from the second portion (140b) of the buffer tank (140). The disclosure further relates to a method for controlling an arrangement (100).

The present application relates to a temperature control system (1) for temperature control of a room (2) of a building (3), comprising a heat / cold generator (4) for temperature control of a heating medium (5), a medium storage unit (6) connected to the heat / cold generator (4) for storing the heating medium (5) tempered by the heat / cold generator (4), a piping system (7) for conveying the tempered heating medium (5) from the medium storage unit (6) to a heating device (8) of the room (2), wherein the heat / cold generator (4) is provided and equipped to heat or cool the heating medium (5) as required. In order to provide a temperature control system and a method for temperature control of a room that can be operated as efficiently as possible, an air conditioning unit (9) arranged in the at least one room (2) is proposed for cooling the room air of the room (2), wherein the air conditioning unit (9) has a chiller (10), wherein the air conditioning unit (9) is operatively connected to the piping system (7) in such a way that waste heat generated at the air conditioning unit (9) as a result of cooling operation of the air conditioning unit (9) can be transferred to the heating medium (5) and the heating medium (5) can be discharged by means of the piping system (7) towards the medium storage (6).

There is provided a heat pump system arranged to heat or cool a building, wherein the heat pump system comprises a heat pump circuit. The heat pump circuit includes: an evaporator configured to absorb heat from a source; a compressor configured to compress a refrigerant and increase its temperature; a condenser configured to release heat from the refrigerant into a sink; and an expansion valve configured to regulate the flow of refrigerant and lower its temperature before it re-enters the evaporator. The refrigerant is arranged to flow continuously through the circuit, from the evaporator to the compressor, to the condenser, to the expansion valve, and back to the evaporator, to provide said heating or cooling to the building. The heat pump system further comprises a DC battery arranged to at least partially power the compressor.

A thermal system for providing thermal conditioning to a facility includes a facility air circuit for circulating a facility air throughout the facility and a downhole fluid circuit for circulating a downhole fluid. The facility air circuit is thermally connected to a heat pump for exchanging heat with the facility air. The downhole fluid circuit includes the heat pump for exchanging heat with the downhole fluid, a main loop, including a borehole heat exchanger (BHE) for exchanging heat between the downhole fluid and a geological formation, and an exhaust loop including an exhaust heat exchanger coupled to an exhaust of the facility air circuit, wherein the exhaust loop is configured to circulate at least some of the downhole fluid through the exhaust heat exchanger to exchange heat between the downhole fluid and an exhaust flow of the facility air exhausted from the facility at the exhaust.

A multi-energy coupled cooling / heating system, including a multi-level management unit for heat sources, a solar energy heat collection unit, a lithium bromide absorptive refrigeration unit, a gas heat complementing unit, a ground source heat pump cooling / heating unit, and an indirect evaporative cooling waste heat recovery unit; the multi-level management unit for heat sources is connected to the solar energy heat collection unit, the lithium bromide absorptive refrigeration unit, the gas heat complementing unit, and the ground source heat pump cooling / heating unit, the ground source heat pump cooling / heating unit is connected to the indirect evaporative cooling waste heat recovery unit.

A heat pump system configured to heat or cool a building is provided. The heat pump system comprises a heat pump circuit. The heat pump circuit includes an evaporator configured to absorb heat from a heat source; a compressor configured to compress a refrigerant and raise its temperature; a condenser configured to release heat from the refrigerant into a sink; and an expansion valve configured to regulate the flow of the refrigerant and lower its temperature before it returns to the evaporator. The refrigerant is configured to flow continuously through the circuit from the evaporator to the compressor, the condenser, the expansion valve, and back to the evaporator to provide the heating or cooling to the building. The heat pump system further comprises a DC battery configured to at least partially power the compressor.

Hot water and / or heating system (100) with: - an exhaust gas heat exchanger (120) which is in fluid-conducting communication with a discharge unit (113) of a heating device (110) and is arranged in the exhaust gas stream of the discharge unit (113) in such a way as to exchange the amount of heat containing in the exhaust gas stream; - a fluid storage unit (130) which is in fluid-conducting communication with the exhaust gas heat exchanger (120), designed to absorb the amount of heat from the exhaust gas heat exchanger (120) into a fluid contained in the fluid storage unit (130), - a heat pump (140) which is in fluid-conducting connection with the fluid storage tank (130) on the cold side, designed to provide the heat quantity of the fluid of the fluid storage tank (130) to the heating circuit (114) on the warm side of the heat pump (140), and - a three-way valve (150) is interposed in a fluid-conducting connection between the cold side of the heat pump (140) and the fluid storage tank (130), wherein the three-way valve (150) is designed to limit a maximum inlet temperature of the fluid to the cold side of the heat pump (140), characterized in that a storage device (160) is provided which is designed to store the amount of heat generated by the heat pump (140), and the storage device (160) is fluidly connected to the heating circuit (114) and to the warm side of the heat pump (140), so that return water of the heating circuit (114) can be preheated with the flow of the warm side of the heat pump (140) via the storage device (160).

A removable installation kit improves connection of a heating device to a heating network during a multi-stage installation of a multi-component heating system including a first fluid pipe network and a second fluid pipe network. The kit comprises a body arranged to be attachable to a structure, for example a wall, and the body comprises a first plurality of fluid connectors for connecting the heating device to the first fluid pipe network, and a second plurality of fluid connectors for connecting the heating device to the second fluid pipe network. The body is arranged to be removeable, after the heating device is connected to the heating network, from the structure, from the first plurality of fluid connectors, and from the plurality of second fluid connectors.

A hot water supply unit includes: a refrigerant unit (U) including a refrigerant circuit (R1) that performs a refrigeration cycle using a first refrigerant that is a flammable refrigerant; a tank (41) configured to store water directly or indirectly heated by the first refrigerant; and a casing (60) disposed in the indoor space (I) and configured to house the refrigerant unit (U) and the tank (41). The refrigerant unit (U) is disposed below the tank (41).

The invention provides a multi-energy coupled intelligent clean heat supply method and system. The multi-energy coupled intelligent clean heat supply method comprises the following steps that the heat requirement of a user side, the solar irradiance, the solar heat supply power, the geothermal energy heat supply power and the biomass energy heat supply power are obtained in real time; when the solar irradiance is larger than or equal to a preset threshold value and the solar heat supply power is larger than or equal to the heat demand of the user side, solar energy is utilized for heat supply; when the solar irradiance is larger than or equal to a preset threshold value and the solar heat supply power is smaller than the heat demand of the user side, solar energy and geothermal energy are used for cooperatively supplying heat; when the solar irradiance is larger than or equal to a preset threshold value, the solar heat supply power is smaller than the heat demand of the user side, and the geothermal energy heat supply power is smaller than the difference between the heat demand of the user side and the solar heat supply power, solar energy, geothermal energy and biomass energy are used for cooperative heat supply; when the solar irradiance is smaller than a preset threshold value, the geothermal energy and the biomass energy are used for cooperatively supplying heat; the energy configuration structure is optimized, the dependence on external traditional energy and the operation cost are reduced, real-time accurate matching of the heat requirement of the user side is ensured, the heat supply quality and the overall energy efficiency of the system are improved, and high practicability and popularization value are achieved.

A geothermally-based system for creating hot water, the system including a ground source of water, a heat pump for creating heated water, and at least one storage tank coupled to the heat pump and the ground source. At least one storage tank initially contains cold water from the cold water supply to be supplied to the heat pump at a low flow rate to achieve high lift, which significantly improves the efficiency of the heat pump and / or can significantly increase the outlet load temperature of water heated by the heat pump, even while operating the heat pump at its rated efficiency. Placing the storage tanks in series at the low flow rate further maintains stratification of hot and cold water contained within the storage tanks. The system further includes controls to stabilize the system during variable periods of hot water demand by monitoring the temperature and / or volume of water in the heat pump and the cold storage tank.

The invention relates to a thermal energy management system for an assembly comprising at least one room (100) and at least one pool (142). The system includes a heat exchanger (102) for heating or cooling the room, a temperature control device (104) for the room, a filtration unit (144) connected to the pool (142) via a hydraulic circuit, and a thermodynamic transfer unit (124) connected to the heat exchanger by a heat transfer fluid circuit. The thermodynamic transfer unit is further connected to the pool and the filtration unit via the hydraulic circuit. The filtration unit is controlled by the temperature control device. (See Figure 1 for the abstract.)

A heat storage and exchanger includes a first fluid conduit, a second fluid conduit, a heat exchanger, and a storage tank. The heat exchanger is configured to transfer heat between the first fluid conduit and the second fluid conduit. The storage tank is configured to receive a thermal storage medium. At least a section of the heat exchanger is arranged in the storage tank to enable a transfer of heat between the heat exchanger and the thermal storage medium.

The invention relates to the field of energy systems, and discloses a multi-energy system suitable for alpine regions and a cooperative control method thereof.The multi-energy system comprises a renewable energy power generation system, a heat pump system, an energy storage system, a heat storage system, an oxygen generation system and a cooperative controller; the cooperative controller is connected with the renewable energy power generation system, the heat pump system, the energy storage system, the heat storage system and the oxygen generation system, the renewable energy power generation system is connected with the heat pump system, the energy storage system, the heat storage system and the oxygen generation system through buses, and the heat pump system and the heat storage system are connected with heat utilization end equipment; and the cooperative controller is used for dynamically switching the operation mode of the multi-energy system according to the environment information and the operation state of each system in the multi-energy system, so that the multi-energy system achieves the optimal performance under different working conditions. The problem that an energy system in an alpine region is difficult to effectively deal with internal and external uncertain conditions is solved, so that required energy and substances can be provided for a user for the longest time in an extreme environment.

The invention discloses a combined cooling and heating system utilizing terrestrial heat, which relates to the technical field of terrestrial heat utilization and comprises a pumping well, a recharge well, a first heat exchanger, a hot water type absorption heat pump unit, a water-water plate heat exchanger, a water source electric heat pump, a cooling tower and a plurality of valves which are connected through pipelines. The system is switched between a heating mode and a cooling mode through valve switching. During heating, geothermal water heats medium driving hot water in the first heat exchanger, the medium driving hot water sequentially flows through the absorption type unit, the plate type heat exchanger and the electric heat pump, heat is released to a heating hot water loop in a step mode, and deep extraction of geothermal energy is achieved. During cold supply, geothermal water serves as a driving heat source to drive the absorption type unit and the electric heating pump to cooperatively produce cold water to meet the cold supply requirement, and waste heat is discharged through the cooling tower. Efficient utilization and cold and heat combined supply of geothermal resources are achieved, and the system has the advantages of being energy-saving, environmentally friendly and low in operation cost.

A thermal system for a facility includes a facility fluid circuit, a ground-source heat pump, and an air-source heat pump. The ground-source heat pump and the air-source heat pump each include a fluid circuit connected to the facility fluid circuit in parallel via a common facility heat exchanger. The ground-source heat pump includes a ground-source heat exchanger for transferring heat between a ground-source working fluid and a downhole fluid of a downhole fluid circuit. The air-source heat pump includes an air-source heat exchanger for transferring heat between an air-source working fluid and an ambient air. Heat can be transferred, at the facility heat exchanger, between the facility fluid and one or more of the ground-source working fluid or the air-source working fluid in order to provide thermal heating, cooling, or both to the facility.

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).

A seasonal, unpressurized heat storage system (1) is proposed, which has a double-shell construction.

A heating and cooling system for collective residential housing units. The system includes: a collective heat pump, a plurality of residential housing units, one closed circuit for circulating a liquid between the collective heat pump and the residential housing units, and a control device for controlling the collective heat pump. The control device controls the temperature of the collective water pump and / or the maximum flow rate from the closed circuit to each of the housing units and / or the flow rate over a bypass on the closed circuit in function of the current needs of the residential housing units.

A system for regulating a building energy supply and distribution installation, the installation including items of energy collection equipment, each of which is in an energy transfer relationship with a respective source; items of energy transformation equipment powered by the collection equipment; items of energy using equipment; the regulation system configured for defining, for the items of equipment, different respective activation states chosen according to parameters, for optimizing with regard to criteria. The system implements a method in the installation, with the following steps: regulation is performed by placing the items of equipment in respective activation states chosen according to demand and parameters, for the purpose of optimizing with regard to criteria; at an intervention instant of regulation, regulation takes forecasts relating to at least one of the parameters into account, the forecasts relating to a period after the intervention instant. A related installation includes the regulation system.

A hot water supply unit comprises: a refrigerant unit (U) having a refrigerant circuit (R1) that performs a refrigeration cycle using a first refrigerant which is flammable; a tank (41) that stores water which is directly or indirectly heated by the first refrigerant; and a casing (60) that accommodates the refrigerant unit (U) and the tank (41) and is disposed in an indoor space (I). The refrigerant unit (U) is disposed below the tank (41).

A heat pump 110 arranged to heat or cool a building, wherein the heat pump comprises a refrigerant compression circuit wherein the compressor (2, fig. 1) is at least partially powered by a DC battery

The present invention discloses a cooling and heating system (100) and a method for such a system.