42results about "Geothermal systems" patented technology

Systems and techniques may be used for incorporating direct air carbon dioxide capture capabilities into a working fluid condensing process of a geothermal power plant. An example technique may include causing, using fans, air to flow across condenser coils of a condensing unit, through which power cycle working fluid is circulated, and through a direct air capture (DAC) filtration component, which separates carbon from the air, capturing heat from a geothermal working fluid, and using the heat as thermal energy input to the DAC filtration component or using electrical energy generated from the geothermal power plant as electrical energy input to power the condensing unit and the DAC filtration component. The example technique may include gathering the carbon separated from the air to be injected into a geothermal reservoir or repurposed for another industrial process.

An energy storage system (TES) converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. In one application, the TES provides higher-temperature heat through non-combustible fluid to an alumina calcination system used to remove impurities or volatile substances and / or to incur thermal decomposition to a desired product.

This application relates to a geothermal energy storage system. A geothermal extraction device is used to extract geothermal energy. A first heat exchange device includes a first heat-releasing module and a first heat-absorbing module capable of heat exchange. The first heat-releasing module is connected to the geothermal extraction device and is used to transfer geothermal energy to a first working fluid in the first heat-absorbing module. The inlet of a compressor is connected to the outlet of the first heat-absorbing module, and the compressor is used to pressurize the first working fluid. A heat storage device is connected to the outlet of the compressor and is used to store the heat of the first working fluid. The inlet of a first expander is connected to the heat storage device, and the first expander is used to cool and depressurize the first working fluid. The first expander is driven by the compressor. A cold storage device is connected to the outlet of the first expander and is used to store the cold energy of the first working fluid. The inlet of the first heat-absorbing module is connected to the cold storage device. Compared with traditional technologies, this system effectively improves the utilization efficiency of geothermal energy.

A geothermal reactor well system includes a closed-loop well coupled to one or more sources of reactants. The closed-loop well includes a first surface wellbore extending from a terranean surface to a geothermal subterranean zone and a second surface wellbore extending from the surface to the zone. A plurality of connecting wellbores connect the first surface wellbore to the second surface wellbore. At least a portion of the connecting wellbores are sealed against communication of fluids with the surrounding geothermal subterranean zone. A carrier fluid is disposed within the closed-loop well. The closed-loop well is configured so heat energy from the geothermal subterranean zone and / or reaction of reactants in the closed-loop well drives the fluids in the closed-loop well to circulate by thermosiphon and to thereby carry the reactants through the closed-loop well for the reaction and carry a product of the reaction through the closed-loop well for collection.

A slurry for enhancing geothermal recovery in a subterranean heat reservoir comprises thermal particles and a carrier fluid. The thermal particles have a selected volume, composition and physical properties sufficient to form a thermal pathway in the reservoir with a particle pack thermal conductivity that meets or exceeds a target thermal conductivity at a thermal pathway stress load of the reservoir. The carrier fluid has a selected fluid volume and viscosity sufficient for the slurry to be injected into openings of the reservoir at an injection pressure higher than the reservoir stress value.

A system and process for direct lithium extraction from geothermal brines, and more particular to the sequential combination of a geothermal plant (200), a direct lithium extraction circuit (400), a lithium chloride concentration and purification circuit (600), and a lithium battery chemical processing circuit (800), for the production of lithium hydroxide monohydrate, lithium carbonate or both from geothermal brines. The processing circuits are powered by the electricity and heat produced by the geothermal plant without the use of carbon-based fuels. Non-condensable gases that may come out of solution from the geothermal brine are not emitted into the atmosphere.

A system and method for in ground heat exchange, including at least one first array and one second array, each first and second array comprising a plurality of capped pipes; at least one temperature sensor; and at least one flow rate sensor, a plurality of flow rate valves connected to each first array and second array, the flow rate valves configured to facilitate flow of a liquid through the system; at least one pump attached to the flow rate valves for modulating the flow rate of the system; and a heat pump, wherein the system is configured to provide heating and cooling to a building.

This system provides a silica scale generation prediction system that can predict the amount of silica scale generated with greater accuracy. [Solution] The silica scale generation prediction system according to the present invention is based on the temperature T at the predicted site of the target object. s A prediction formula PF for silica concentration C, which depends on the silica concentration, and the time t until the silica-containing fluid reaches the predicted site. s The system includes a silica scale generation prediction unit that predicts the amount of silica scale generated at a predicted site based on at least one of the silica concentration C prediction curve PC which depends on the silica concentration C, wherein the silica concentration C prediction formula PF and the silica concentration C prediction curve PC are obtained based on a reaction model generated using a silica polymerization reaction that includes reversible and irreversible reactions and precipitation equilibrium reactions of silica contained in the fluid, and the silica scale generation prediction unit calculates the amount of silica scale generated at the predicted site using at least one of the initial silica concentration Ci and the fluid flow rate FR.

This utility model relates to the field of geothermal energy utilization technology, and in particular to a high-temperature geothermal energy conversion and heat release device for medium-deep geothermal energy. It includes a heat-conducting sleeve, heat conduction pipes, and a confluence pipe. Multiple sets of heat conduction pipes are arranged in an array inside the heat-conducting sleeve. Multiple sets of ribs are fixedly installed around the heat conduction pipes and are fixedly connected to the heat-conducting sleeve. The heat-conducting sleeve is filled with thermally conductive gel. One end of each set of heat conduction pipes is connected to the confluence pipe. An evaporation chamber is provided inside the heat-conducting sleeve, and the confluence pipe communicates with the evaporation chamber. This utility model increases the contact area through the ribs, and in conjunction with the thermally conductive gel inside the heat-conducting sleeve, it can absorb geothermal energy and transfer it to the heat conduction pipes, heating the circulating fresh water inside the heat conduction pipes to extract geothermal energy. The heated hot water from the multiple sets of heat conduction pipes is then discharged into the evaporation chamber through the confluence pipe, evaporated into high-temperature steam, and then delivered to the energy conversion component for geothermal utilization.

The "Energia Nostra Power Plant" uses the heat from magma, lava and adjacent high-temperature layers for generating electricity, heat, fresh water, salt and chemical products. Heat-resistant tubes transmit the heat via a heat transfer medium (e.g. liquid sodium, supercritical CO2, helium or liquid metals) to a secondary circuit where high-pressure steam is generated. The residual heat is used for cooling, direct heating, district heating and heat storage. Artificial intelligence optimizes operation and monitors the system in real time. The modular structure makes it possible to adapt to volcanic regions or geothermal hotspots. This versatile system offers a sustainable and emission-free energy source and addresses global challenges such as climate change and resource protection. Applications range from civilian and industrial processes to national defence and urban supply.

Various examples are provided related to airlift pumping of downhole geothermal fluids. In one example, an airlift system includes a compressor; a gas sparger head in a wellbore of a geothermal well, and a pressure head recycle assembly. The sparger head produces artificial lift of the geothermal fluids by injecting a gas resulting in a difference in density downhole. The entrained gas can be extracted by the pressure head recycle assembly, compressed, and reinjected downhole. The geothermal fluid at the well head can be used in direct use applications or in a thermodynamic cycle to make shaft power. The gas sparger head can include a venturi shaped passage extending through the gas sparger head and a bubble orifice including gas orifices radially spaced about a narrow portion of the venturi shaped passage. The gas orifices can have a corresponding resonant chamber through which the gas (e.g., air) is provided.

An interior space climate control system featuring a temperature differential engine, with the temperature differential engine configured to exploit the temperature differential of at least two sources with different temperatures. The fluids may be used to provide additional benefits to an interior space, such as heating, hot water, cooling, and refrigeration, and unused climate control fluids may in turn be used as sources of fluids with temperature differentials.

The present application relates to geothermal energy development and heat utilization field, especially to a kind of super-long gravity heat pipe type geothermal development system for offshore abandoned oil and gas well, system includes: offshore abandoned oil and gas well, super-long gravity heat pipe, heat user, cold source and underground carbon dioxide storage area;The super-long gravity heat pipe is arranged in the offshore abandoned oil and gas well, and the bottom of the super-long gravity heat pipe is at least partially deep into underground carbon dioxide storage area, and the working medium outlet of the super-long gravity heat pipe is connected with the heat user, and the heat user is driven by power generation equipment, and the cold source is used to cool the heat user.This system successfully realizes the development and reuse of offshore abandoned oil and gas well geothermal resources, without additional pump work auxiliary, simple structure, low maintenance cost;At the same time, by using the natural convection effect of carbon storage, the heat exchange process of underground reservoir is strengthened, and the heat extraction amount is significantly improved.

The state of a shape memory element in an actuator can be monitored and controlled to protect the shape memory element. The actuator can be configured to transform into an activated configuration upon activation, in which one dimension (e.g., the height) of the actuator increases. A sensor is configured to acquire sensor data. A portion of the shape memory element can be functionally engaged with the sensor. One or more processors can be functionally connected to monitor the state of the shape memory element based on the sensor data.

A method of designing an enhanced geothermal system and characterising at least one fracture in an enhanced geothermal system. The enhanced geothermal system comprises at least one well combination of

A carbon dioxide recovery system according to the present disclosure comprises: an adsorption unit that recovers carbon dioxide in air using an adsorbent; a transport unit that transports air in an indoor space to the adsorption unit; a heat recovery unit that recovers heat from the air; a separation unit that separates the carbon dioxide from the adsorbent; a first path that extends from the indoor space to the adsorption unit via the heat recovery unit; a second path that extends from the indoor space to the adsorption unit without passing through the heat recovery unit; a switching valve that switches the transport path of the air between the first path and the second path; and a control unit that controls the switching valve.

This utility model discloses a combined LNG cold energy and geothermal energy power generation system, compared to existing technologies. It includes an LNG cold energy recovery subsystem, a geothermal circulation subsystem, and a cooling water system. The LNG cold energy recovery subsystem includes an LNG storage tank, an LNG cryogenic pump, a downstream user terminal, a second evaporator, a preheater, a second working fluid pump, a second turbine generator set, and a second condenser. The geothermal circulation subsystem includes a water extraction well, a geothermal water pump, a reinjection well, a first evaporator, a first working fluid pump, and a first turbine generator set. The cooling water system includes a cooling water pump and a first condenser. This utility model combines LNG cold energy power generation with geothermal power generation, effectively improving energy utilization while avoiding the limitations of a single energy source. Utilizing the cold energy from LNG vaporization lowers the condensation temperature of the ORC system, increases the system temperature difference, and improves power generation efficiency. Geothermal energy provides a heat source for LNG vaporization, reducing the environmental impact of traditional seawater heating.

This utility model discloses an intelligent temperature-controlled geothermal well heating circulation and reinjection energy-saving device, including a circulation module installed at the outlet of the geothermal well. A heat-using device is connected to the circulation module for heating the device. A drainage module is installed on one side of the circulation module. Both the circulation module and the drainage module are connected to a control module for simultaneously discharging low-temperature water from the circulation module and introducing new hot water. This utility model has a reasonable design structure. By setting up a circulation pipeline on the geothermal well, and sequentially installing a hot water pump, a first control valve, a second control valve, a drainage module, and a monitoring module at corresponding positions on the circulation pipeline, the device monitors the geothermal water in real time, promptly discharging low-temperature geothermal water and simultaneously introducing new geothermal water. This solves the problem in existing heating systems where geothermal water continuously circulates regardless of temperature, making it difficult to discharge low-temperature water in time, thus failing to meet heating needs, and causing energy waste due to repeated circulation.

The application discloses a device for exploiting dry hot rock geothermal energy based on seawater working medium and a mounting method thereof. The device comprises a geothermal energy collecting assembly, a steam generator, a steam power generation assembly, a condenser and a heat exchange assembly. The steam generator is connected to the geothermal energy collecting assembly, the steam power generation assembly is connected to the steam generator, the condenser is connected to the steam power generation assembly, the heat exchange assembly is used for absorbing the heat energy of the geothermal layer, one end of the heat exchange assembly is connected to the condenser, the other end of the heat exchange assembly is connected to the steam generator, and a control system is electrically connected with the geothermal energy collecting assembly, the steam generator, the steam power generation assembly, the condenser and the heat exchange assembly. The working medium after power generation is recycled, direct discharge of the working medium after power generation is avoided, the power generation capacity of the steam power generation assembly is improved, and the economic benefit of the dry hot rock exploitation is improved.

A force-feedback input device includes: a base; an operation member supported to be movable in a first direction with respect to the base; a shape memory alloy wire whose length changes when the operation member moves toward one side in the first direction; and a controller electrically coupled to the shape memory alloy wire, and having a processor and a memory storing computer-readable instructions, which when executed by the processor, cause the controller to change a current flowing through the shape memory alloy wire to change a length of the shape memory alloy wire when the operation member, moving toward the one side, reaches a first position. The controller is further caused to supply a measurement current to the shape memory alloy wire to measure a resistance value of the shape memory alloy wire, and detect a position of the operation member based on the resistance value.

A method and system for forecasting and optimizing the performance of earth tube air exchange systems using machine learning algorithms. The invention receives measured exit air temperature data across various annual periods and outdoor temperature ranges, determines predicted temperature differences across the earth tube, and provides these predictions to HVAC design or operation modules. The system refines its forecasts over time based on actual outcomes, generates alerts or recommendations when performance deviates from thresholds, and stores both forecasted and actual data for long-term analysis and optimization. This approach enables improved accuracy in system design, operation, and maintenance, resulting in enhanced energy efficiency and reliability.

This invention belongs to the field of geothermal development technology, specifically relating to a geothermal well string and its construction process. The geothermal well string includes: a surface casing with a first load-bearing short section; a secondary casing with a first mounting ring on its outer wall for fitting the first load-bearing short section, and a second load-bearing short section located below the first mounting ring; and a tailpipe assembly with a second mounting ring on its outer wall for fitting the second load-bearing short section. This invention can reduce costs and improve construction efficiency.

An energy storage system converts variable renewable electricity (VRE) to continuous heat at over 1000° C. Intermittent electrical energy heats a solid medium. Heat from the solid medium is delivered continuously on demand. Heat delivery via flowing gas establishes a thermocline which maintains high outlet temperature throughout discharge. The delivered heat which may be used for processes including power generation and cogeneration. In one application, the energy storage system provides higher-temperature heat to a conventional lower-temperature heat source to boost the temperature of a thermal power cycle working fluid to a turbine, thereby increasing efficiency of the power cycle.

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 geothermal power system includes a turbocharger fluidically coupled to a heat exchanger. A first fluid enters the turbocharger at a first inlet, and flows in a first fluid path to a first outlet. The first fluid flows from the first outlet to the heat exchanger. The first fluid heats a second fluid at the heat exchanger. The first fluid flows from the heat exchanger to a second inlet of the turbocharger. The first fluid enters the turbocharger at the second inlet, and flows in a second fluid path to a second outlet. A pressure of the first fluid reduces as the first fluid transits through the turbocharger along the first fluid path. A pressure of the first fluid increases as the first fluid transits through the turbocharger along the second fluid path.

A geothermal cooling system, the system comprising: a forced geothermal circuit in communication with a well bore; a heat exchanger; a cold reservoir fluid intake; and a reservoir return channel. A method for geothermal cooling, the method comprising: passing a hot working fluid into a forced geothermal circuit comprising a heat exchanger; passing a cold reservoir fluid from a reservoir through an intake; passing the cold reservoir fluid into the heat exchanger; reducing the temperature of the hot working fluid to form a cold working fluid; increasing the temperature of the cold reservoir fluid to form warm reservoir fluid; passing the cold working fluid into a cold surface closed loop; and passing the warm reservoir fluid into a reservoir return channel.

At least one wellhead 18 upstream of a thermoelectric generator (TEG) 26 conveys a flow of warm fluid from a subterranean source 16 to the generator. The wellhead can be connected to at least one othe

This invention discloses a multi-energy complementary coupled power generation system and method based on geothermal ORC-LNG cold energy-seawater source, belonging to the technical field of geothermal energy development and utilization and LNG cold energy utilization. It includes a geothermal ORC power generation system, an LNG vaporization and heating system, and a heating system. The geothermal ORC power generation system is connected to the LNG vaporization and heating system, providing a heat source for the LNG vaporization and heating system, and the LNG vaporization and heating system providing a cold source for the geothermal ORC power generation system. Both the geothermal ORC power generation system and the LNG vaporization and heating system are connected to the heating system. This multi-energy complementary coupled power generation-gas supply system simultaneously meets the cold and heat requirements of ORC power generation condensation and LNG vaporization, improving the overall performance and efficiency of the power generation-gas supply coupled system while meeting natural gas supply requirements.

The system includes a pressure exchanger (PX) configured to receive a first fluid through a first inlet and a second fluid through a second inlet. The PX exchanges pressure between the first fluid and the second fluid and provides the first fluid to a first outlet and the second fluid to a second outlet. The system further includes a heat exchanger that exchanges corresponding thermal energy between the first fluid and the second fluid. The system further includes a turbine configured to receive the second fluid output from the first heat exchanger and convert the corresponding energy of the second fluid into rotational kinetic energy.