24 results about "Energy transfer" patented technology

The present application relates to geothermal resource development and evaluation technical field, especially to the balanced water and heat type geothermal resource dynamic evaluation method, including: collecting the flow, temperature and pressure data of the produced fluid and the recharging fluid, and carrying out time synchronization, outlier elimination and time series reconstruction processing on the data to form a continuous operation data set; jointly analyzing the time series change of the operation data set, extracting flow response characteristic quantity and heat exchange response characteristic quantity, and dividing the underground heat reservoir into flow and heat storage units according to the similarity of the characteristic quantity; on the scale of the flow and heat storage unit, respectively establishing a flow structure model and a heat exchange structure model, and coupling them, through a unified state variable to describe the corresponding relationship between the fluid migration behavior and the energy transfer behavior, a flow and heat storage dynamic evaluation model is constructed; based on the model, the change of the state variable of each flow and heat storage unit with time during the recharging operation process is calculated, and the dynamic evaluation data is obtained.

This invention relates to the field of ship energy conservation and emission reduction technology, and particularly to a low-carbon emission carbon dioxide transport vessel and its control method. A low-carbon emission carbon dioxide transport vessel includes an LNG supply unit, a water glycol circulation unit, a carbon dioxide capture unit, a carbon dioxide storage unit, and a dual-fuel main engine. The LNG supply unit includes an LNG storage tank, a submersible pump, an LNG heat exchanger, a buffer tank, and a main gas supply valve. The carbon dioxide capture unit includes a spray assembly, an absorption and desorption assembly, and a compression liquefaction assembly. The carbon dioxide storage unit includes a carbon dioxide storage tank and a BOG regulating valve. The water glycol circulation unit serves as a cold energy transfer medium, enabling the coupling of LNG cold energy with the carbon capture system. The advantages of this low-carbon emission carbon dioxide transport vessel and its control method are that it reduces the space occupied on the vessel, lowers the vessel's weight, reduces processing costs, and lowers processing energy consumption.

The application provides a kind of fluid elbow vibration reduction and noise reduction device based on magnetic linkage energy transfer, comprising first magnetic linkage device and second magnetic linkage device respectively located at the inlet and outlet of the elbow, and transmission mechanism connecting the first magnetic linkage device and the second magnetic linkage device; the first magnetic linkage device rotates with the flow of fluid working substance, the rotation of the first magnetic linkage device drives the second magnetic linkage device to rotate through the transmission mechanism, and the second magnetic linkage device pressurizes and speeds up the fluid working substance flowing through the second magnetic linkage device by rotating. The application converts part of the kinetic energy of the fluid working substance on the inlet side of the elbow into mechanical energy through the first magnetic linkage device and transmits it to the second magnetic linkage device to reduce the impact and flow-induced vibration caused by the radiation noise when the fluid working substance flows through the elbow. The second magnetic linkage device can pressurize and speed up the decelerated fluid working substance to restore the normal flow rate and pressure of the fluid working substance.

This invention relates to the field of low-temperature heat source refrigeration technology, specifically disclosing a low-temperature heat source refrigeration system and method. The system includes an energy transfer topology construction module, an energy supply-demand deviation vector generation module, and an inter-stage energy distribution controller. This invention constructs the key nodes of a three-stage refrigeration unit as an energy transfer topology diagram, generates a five-dimensional energy supply-demand deviation vector reflecting the temperature deviation of each node, calculates the threshold adjustment value through a deviation-threshold mapping matrix, and adjusts the flow rate of each heat transfer path. By abstracting the heat transfer path into a directed graph structure, this invention utilizes multi-dimensional deviation vectors and mapping matrices to achieve multi-variable collaborative control, solving the problem of difficult-to-accurate matching of heat supply and demand imbalance in multi-stage refrigeration systems, improving system energy efficiency and operational stability, and reducing the operating energy consumption of carbon dioxide capture, utilization, and storage systems.

This application belongs to the field of power supply technology and provides a method for adjusting the open-circuit voltage of a power supply, a power supply circuit, a power supply device, and a welding machine. By driving the first power transistor switching module and the second power transistor switching module to conduct alternately, the transformer module operates in a state of extremely low energy density, thereby achieving the purpose of adjusting the open-circuit voltage of the power supply over a wide range. By using frequency hopping technology to reduce the equivalent driving frequency of the upper and lower switching transistors in the dual-transistor forward topology circuit in the power supply, the energy transfer density of the transformer is further reduced. The voltage regulation module controls the equivalent resistance at the output terminal of the power supply, and the auxiliary step-down module provides auxiliary voltage, thereby achieving the purpose of compound adjustment of the open-circuit voltage of the power supply. Finally, the rectification and freewheeling modules rectify and freewheel the voltage signal output by the transformer module. This solves the problem that the open-circuit voltage of existing welding power supplies is mostly not adjustable, or very rarely adjustable but with a small adjustment range, resulting in poor adaptability to welding processes.

The application provides a brake operation state monitoring method and system, and relates to the technical field of brake monitoring. Firstly, acoustic emission waveform time sequence and infrared thermal radiation field image time sequence in a brake execution process are acquired. Then, a sound-heat energy transfer correlation path diagram is constructed. Next, sound-heat energy transfer time sequence offset features are identified. Then, the sound-heat energy transfer time sequence offset features are used to generate a hysteresis coupling path diagram. Finally, the hysteresis coupling path diagram is used to determine the contact interface wear state grade of the brake friction pair. The application can accurately depict the energy transfer path and characteristics by collecting physical information in the braking process and revealing the internal relationship of the signals, and can reliably determine the wear state of the brake, thereby improving the operation safety and reliability of the brake.

This application provides an energy system relating to the field of power conversion technology. The energy system includes: at least one boost converter for boosting the output voltage of a first photovoltaic unit and connecting it to a first DC bus; at least one buck converter for stepping down the output voltage of a second photovoltaic unit and connecting it to a second DC bus; a first charge / discharge module for energy transfer between the first and second DC buses; at least one first energy storage unit connected to the second DC bus and connected to the first DC bus via the first charge / discharge module; and an inverter unit connected to the first DC bus for converting the input DC power into AC power and outputting it to the power grid or a load. This application employs a hybrid bus structure design, which reduces device costs and energy losses, thereby lowering the overall cost of the energy system and improving overall efficiency.

This application provides a temperature control system relating to the field of energy-saving technology, comprising: a first heat exchange mechanism, a second heat exchange mechanism, a third heat exchange mechanism, and a fourth heat exchange mechanism for energy transfer through heat exchange of a medium; a reversing mechanism for controlling the flow direction of the medium to realize the corresponding heat exchange loop; a regulating mechanism for controlling the flow of the medium in the corresponding fluid channels; a photovoltaic mechanism for acquiring light energy and electrically connecting to the fourth heat exchange mechanism to provide energy; and a control mechanism for monitoring and controlling the working status of the relevant units of the system and realizing the corresponding energy transfer mode. This temperature control system can efficiently convert and utilize energy from nature and effectively reuse the waste energy generated by the system itself, improving the overall energy efficiency, operational stability, and economy of the system, and reducing the impact of traditional temperature control systems on the ecological environment.

In some implementations, an energy transfer system includes a housing. The energy transfer system includes a robotic system that includes one or more components for enabling energy transfer. The energy transfer system includes a slide system configured to move the robotic system between an interior of the housing and an external environment. The slide system includes a slider body mounted to a floor of the housing. The slide system includes a mounting base movably connected to the slider body, a base of the robotic system being mounted to the mounting base.

The application discloses a solution-processed light-emitting layer and a narrow-band organic electroluminescent device with a co-operated evaporation phosphor sensitized layer, and a preparation method and application thereof. The organic electroluminescent device comprises a substrate, a hole injection layer, a hole transport layer, a solution-processed light-emitting layer, an evaporation sensitized layer, an electron transport layer, an electron injection layer and a metal electrode in sequence. The terminal light-emitting layer is formed by solution processing, and the sensitized layer is formed by evaporation, so that the sensitizer can be introduced into the device in the form of an independent functional layer, thereby reducing the dependence on the direct solution blending condition, adjusting the sensitized layer thickness, the sensitizer concentration and the interlayer spatial relationship, optimizing the exciton generation and energy transfer process, reducing the local exciton density, weakening the exciton-exciton and exciton-polaron annihilation, and thus improving the external quantum efficiency, the efficiency roll-off and the working stability of the device.

This invention relates to the field of cryogenic refrigeration technology, and more particularly to a continuously operating ultra-low temperature adiabatic demagnetizing refrigeration system. It includes: a magnetic refrigeration unit, a temperature control unit, a cold energy transfer structure, and a buffer chamber. The magnetic refrigeration unit includes a magnetocaloric module, a thermal switch, a superconducting magnet surrounding the magnetocaloric module, and a magnetic shielding structure. The temperature control unit includes a sealed container encapsulating a cryogenic working fluid, comprising a gas phase region and a liquid storage region, which are connected by a thin-walled liquid-conducting neck. The cold energy transfer structure connects the cold end of the magnetic refrigeration unit to the gas phase region of the temperature control unit. The buffer chamber is connected to the gas phase region of the temperature control unit via a gas phase pipeline. This application transforms the intermittent cold energy output of the magnetic refrigeration unit into a continuous and stable refrigeration process, reducing cold energy consumption, simplifying the system's control logic, and making the system structure more compact.

Provided is a well system and a method. The well system, in one aspect, includes a wellbore extending through one or more subterranean formations, and a tubular located within the wellbore. The well system, according to one aspect, further includes an energy transfer mechanism coupled to the tubular, wherein the energy transfer mechanism is located above 3 o'clock or above 9 o'clock relative to gravity.

This invention belongs to the field of digital twin technology and discloses a digital twin intelligent control and maintenance system based on an industrial air conditioning system and an air compressor system. It constructs a spatiotemporal graph data structure containing physical entity nodes and energy transfer edges. Nodes store the spatial coordinates and operating parameters of the condenser, evaporator, and cooler, while edges store heat transfer coefficients and pressure delay parameters. Thermodynamic heat transfer correlation is calculated by extracting temperature sequences from the air conditioning and air compressor sides. When the correlation exceeds a physical conservation threshold, the edge weights of the energy transfer edges are dynamically updated, propagating the aerodynamic loss parameters of the air compressor side along the energy transfer edges to the air conditioning side nodes for joint updates. This scheme eliminates the physical isolation of cross-system twin data, restores the causal path of heat transfer, and ensures the accuracy of fault evolution analysis under abnormal cross-system coupling conditions and the physical consistency of the digital twin topology.

Passive cooling systems and methods, in which an infinite cooling circulation occurs by itself while cooling water is passively circulated without separate operation and control of an operator and supply of an external power source in the event of an abnormality in a nuclear reactor. The passive cooling system includes an energy release space; an energy absorbing space to which a pressure in the energy release space is transferred; an energy transfer space which absorbs and cools heat transferred from the nuclear reactor vessel as the cooling water; an emergency cooling flow passage for transferring heat to the energy transfer space; a reactor thermal insulation vessel; a pressure equalization pipe to transfer water vapor and pressure in the reactor thermal insulation vessel to the energy absorbing space; and a coolant spray pipe for flowing pressurized cooling water by the pressure equalization pipe to the energy transfer space.

This invention discloses a ground-air coordinated multi-element energy storage system and its operation method, relating to the field of energy storage technology. Through a three-dimensional architecture combining above-ground electrochemistry and underground thermodynamics with intelligent coordinated control, this invention achieves functional complementarity between short-term frequency regulation and long-term energy transfer; it utilizes underground space to solve deployment challenges and improve space utilization; it constructs a complete energy cascade utilization chain from waste heat recovery, grade enhancement, power generation to waste heat heating, significantly improving the system's overall energy efficiency; and through an adaptive coordinated control strategy, it ensures the system's safety, stability, and economy under multi-mode operation.

This invention relates to the interdisciplinary fields of electrothermal engineering, thermal system modeling, and intelligent control, and provides a temperature tracking control method for underactuated electrothermal systems based on available energy. This method establishes a dynamic model including the temperature states of the quartz lamp and the test specimen, as well as their coupled heat transfer relationship. It constructs a Lyapunov function of available energy based on the temperature deviation of the test specimen, determines the system's natural dissipation terms and the energy injection channel by analyzing the function's derivative, and then constructs a virtual energy control target and error adjustment process. The dynamic constraint relationship of the energy injection channel is derived and mapped to the actual control input of each quartz lamp, adjusting the energy transfer between the quartz lamp and the test specimen to ensure the test specimen temperature stably tracks the reference value. This invention, without directly controlling the test specimen temperature, constructs a unified control framework based on the system's energy transfer and dissipation mechanisms, effectively improving the stability and robustness of the control system.

The embodiment of the application provides a real-time energy loss optimization method and device for an energy recovery duty cycle system, and belongs to the technical field of power management. The method comprises the following steps: a system architecture comprising an output capacitor, an energy storage capacitor and a three-stage power conversion circuit is adopted; when the system is in sleep, part of the energy of the output capacitor is recovered to the energy storage capacitor; when the system is woken up, the energy of the energy storage capacitor is transferred back to the output capacitor to make the voltage of the output capacitor rise to an intermediate voltage, and then the output capacitor is charged from a battery to a working voltage. By taking the intermediate voltage as an observation object and dynamically adjusting the control parameters of energy recovery by using a closed-loop optimization algorithm such as a perturbation observation method, the intermediate voltage is maximized in real time, and the minimization of the total energy loss of the system is realized. The application does not need to preset any running parameters, the optimization deviation is less than 2.15%, the static current is as low as 15 nA, up to 60% of energy loss can be saved in a wide range of sleep time, and the energy efficiency and robustness of an ultra-low power consumption system are significantly improved.

This application provides a power extraction measurement circuit, method, and device for transmission lines. The circuit includes an inductive power extraction coil, a measurement circuit, a control module, a first energy storage module, a switch module, a transformer module, and a locking circuit. The inductive power extraction coil is connected to the primary side of the measurement circuit, and the secondary side of the measurement circuit is connected to the control module. If the control module receives a target measurement command and the voltage of the first energy storage module is less than a preset voltage threshold, the control module locks the output of the switch module through the locking circuit. The first energy storage module stores energy, and the transformer module stops electromagnetic energy transfer until the voltage of the first energy storage module reaches the preset voltage threshold. Then, the target measurement command is executed. After the target test command is completed, if the voltage of the first energy storage module reaches the preset voltage threshold, the output of the switch module is opened through the locking circuit, and the transformer module resumes electromagnetic energy transfer. This improves measurement accuracy and reduces the weight and size of the equipment.

The present disclosure relates to a kind of H2S and CO2 level well casing residual strength evaluation method containing, based on Newton microelement method, for multiple factors such as real borehole trajectory, drilling fluid viscous friction and drilling parameter, analysis model of accurately describing the contact force of drill pipe and casing is established;Based on four-order Runge-Kutta, the analysis model is solved, and the contact force size and distribution of drill pipe and casing at different well depth are obtained;Using energy transfer theory and White-Fleisher wear theory, the thickness reduction of casing after wear is determined;Based on indoor corrosion test data, the thickness reduction caused by casing corrosion is determined;The total thickness reduction caused by casing wear and corrosion is superimposed, and the residual strength of technical casing after wear and corrosion is calculated;The method of the present application has higher precision and applicability for the residual strength evaluation and full life cycle integrity evaluation of large displacement well and horizontal well casing containing acid gas.

This invention discloses a method and system for suppressing unmatched disturbances in an underactuated electrothermal system based on a second-order hyperlocal model. It relates to the interdisciplinary fields of electrothermal engineering, thermal system modeling, and intelligent control. The method involves: based on the energy transfer relationship between a quartz lamp and a test specimen, performing high-order time derivatives on the output variable of the test specimen, introducing the control input term of the quartz lamp, and establishing a target dynamic relationship; according to the target dynamic relationship, decomposing the total disturbance term into structured disturbance components and unstructured residual disturbance components, and obtaining the total disturbance compensation amount using measurable state information; based on the expected output variable tracking error dynamics, constructing a nominal control equation in conjunction with the total disturbance compensation amount, transforming it into a constraint optimization allocation of the quartz lamp, and solving to obtain the control input results for each quartz lamp. The method described in this invention overcomes the bottleneck of underactuated control, achieving accurate disturbance compensation and decoupling, and significantly improving steady-state accuracy and dynamic performance.

This invention relates to the field of new energy grid connection technology, and provides a general electromechanical transient modeling method and system for simulating multiple types of energy storage. The method includes: structural identification of doubly-fed variable-speed pumped hydro storage and electrochemical energy storage, both decomposed into multiple sub-models according to function; for each sub-model, analyzing the similarities and differences between doubly-fed variable-speed pumped hydro storage and electrochemical energy storage in energy transfer, control strategies, and grid connection characteristics, and establishing a general electromechanical transient model including an energy buffer model, a primary energy side model, a secondary energy side model, and a reference value generation model. This invention proposes a general electromechanical transient model structure capable of simulating the dynamic characteristics of various energy storage systems, which not only facilitates the flexible use of models in large-scale power system simulations but also reduces the burden of program development.

The present invention claims a method and a device that control the transmission of energy transfer data. In particular, it provides for the transmission of data representing the energy transfer between a charging point, for example, a charging station, a wallbox, or a public charging point, and a vehicle that is at least partially electrically powered. The underlying method and a control unit included in the device acquire at least one piece of electricity tariff information, which contains temporal information about the electricity tariff and, in particular, any changes to the electricity tariff. Based on this electricity tariff information, times and, in particular, time intervals are then determined at which the energy transfer data is transmitted, for example, to a central server, a backend system, the user / driver, and / or a fleet operator.