851 results about "Thermoelectric conversion" patented technology

The invention relates to the technical field of comprehensive energy management, and particularly discloses a comprehensive energy optimization scheduling system based on adaptive adjustment, which comprises a solar heat collection module, a heat storage module, a thermoelectric conversion module, a data acquisition module, an intelligent control module and an optimization scheduling module, solar energy is converted into heat energy; the heat storage module is used for storing heat energy generated by the solar heat collection module; the thermoelectric conversion module converts heat energy stored in the heat storage module into electric energy and provides the electric energy for a load. The data acquisition module is responsible for collecting key parameters related to system operation; the intelligent control module adaptively adjusts the operation parameters of the heat collector, the heat storage module and the thermoelectric conversion module to ensure the stable operation of the system; the optimization scheduling module establishes a supply optimization model, optimizes energy supply, establishes a load model, predicts future power load demands, reduces energy waste and improves the energy utilization rate.

The invention belongs to the technical field of waste heat recovery and discloses an energy recovery and heat supply system and method based on thermoelectric conversion, and the method comprises the steps that an energy recovery unit collects heat of an industrial waste heat source, and a circulating pump drives a heat transfer medium to circulate in a pipeline; a stable temperature difference is formed at the two ends of the thermoelectric module, and thermoelectric conversion is carried out; the electric energy management unit rectifies and stabilizes the electric energy output by the thermoelectric module; a part of the electric energy after voltage stabilization is stored in a storage battery pack; the electric heating boiler is driven by electric energy to work; the heated hot water is conveyed to an area needing heat supply; and the monitoring module is controlled to operate to perform operation processing according to a preset algorithm and heat supply requirements. The energy recovery and utilization efficiency is high, waste heat resources which are wasted originally can be effectively recovered and converted into electric energy and heat energy to be used, an electric energy storage device, an auxiliary heating device and a monitoring system are arranged, and heat supply stability and continuity can be guaranteed under various working conditions.

The invention discloses a notebook computer waste heat recycling system and method based on a thermoelectric conversion effect, and relates to the technical field of thermoelectric materials and devices, and the system comprises a distributed thermoelectric array module which is composed of a plurality of miniature TEG units, is distributed in a high heating area of a notebook computer, and directly generates power through temperature difference; the self-adaptive heat management module comprises a heat-conducting silica gel layer and micro heat dissipation fins and is used for optimizing the temperature difference between the hot end and the cold end; the multi-stage electric energy management module comprises a rectifying circuit, a DC-DC boosting chip and a recycling energy storage battery device, converts the unstable low-voltage direct current output by the TEG into stable electric energy, stores the stable electric energy and supplies the stable electric energy to target equipment; and the intelligent control module dynamically adjusts the working area of the micro thermoelectric power generation unit according to the data of the temperature sensor, preferentially selects the position with the maximum temperature difference to generate power, and matches the power supply demand through a PMIC chip. Efficient conversion and utilization of waste heat are realized through innovative design, the problem of low thermoelectric conversion efficiency in miniaturized equipment is solved, and energy conservation and environmental protection are realized.

A thermoelectric conversion element 200 according to the present invention comprises: a thermoelectric conversion section 202 having non-linear thermoelectric response characteristics with respect to an input of a heat flow H along a first direction; and electrode sections 207a, 207b for extracting a thermoelectric signal JN generated in the thermoelectric conversion section 202 due to the heat flow H input to the thermoelectric conversion section 202 from the outside along the first direction.

The invention relates to an ionic redox couple thermoelectric cement-based composite material, the composite material comprises a cement matrix and redox couples, and the redox couples exist in pores of the cement matrix; wherein the redox pairs are K4 [Fe (CN) 6] and K3 [Fe (CN) 6], and the porosity of the cement matrix is 25%-50%. According to the invention, the migration of ions in a cement matrix is regulated and controlled by introducing the redox couple, so that a relatively high Seebeck coefficient, conductivity and power factor are achieved while good mechanical properties are maintained, and the thermoelectric conversion efficiency is remarkably improved. Besides, the composite material can drive electrode reaction through temperature difference to generate a closed current loop, stable current output is achieved, and the problem of current output of a traditional ionic thermoelectric material is solved.

The invention discloses a thermal photovoltaic Brayton cycle power generation system for an aircraft and a control method. The aircraft comprises a combustion chamber and a cooling channel, the system comprises a fuel assembly, the fuel assembly comprises a fuel storage tank and a first diverter valve in pipeline connection with the fuel storage tank, an outlet pipeline of the first diverter valve is connected with a cooling pipeline, and an outlet pipeline of the cooling pipeline is connected to the combustion chamber; the thermophotovoltaic power generation assembly is arranged outside the cooling channel; the cooling pipeline is arranged in the cooling channel, and fuel in the cooling pipeline is used for cooling the cooling channel and the photovoltaic power generation assembly; and the Brayton cycle power generation assembly comprises a cooler, and the cooling pipeline is connected with a first inlet pipeline of the cooler. On the basis of Brayton cycle power generation, a thermal photovoltaic power generation system is coupled, so that the generating capacity can be increased while cooling of a cooling channel is ensured, and the thermoelectric conversion efficiency of the system is improved.

A thermoelectric conversion element includes a heat insulating material and a thermoelectric conversion member. A main body portion of the thermoelectric conversion member is disposed inside the heat insulating material and has a predetermined length in a thickness direction of the heat insulating material. A sensor module includes a heat insulating material, a first thermoelectric conversion member same as the thermoelectric conversion member, a conversion circuit converting electromotive force of the first thermoelectric conversion member into a signal, and a wireless module capable of transmitting the signal based on the electromotive force of the first thermoelectric conversion member converted by the conversion circuit.

The invention provides a new energy automobile energy closed-loop system, method and product based on waste heat cascade recovery. The system comprises a waste heat cascade recovery subsystem for collecting multi-source waste heat of the new energy automobile and converting the multi-source waste heat into electric energy; the dynamic energy management subsystem is used for storing electric energy and determining a power-on path of the new energy automobile according to the state of the new energy automobile, and the state of the new energy automobile comprises the speed change rate of the new energy automobile, the charge state of the super capacitor bank and the charge state of the lithium battery pack; and the self-powered closed-loop control subsystem is used for monitoring the temperature of the battery module in the power-on process of the new energy automobile and calling electric energy to drive a heater when the temperature of the battery module is lower than a preset temperature threshold value so as to realize closed-loop temperature control. Therefore, the waste heat utilization rate of the new energy vehicle can be improved and the closed-loop management of the energy of the whole vehicle can be optimized by performing stepped recovery on the waste heat of the new energy vehicle and supplying power to the vehicle based on thermoelectric conversion.

The invention discloses a waste heat recovery system which comprises a heat exchange module, a control module, a thermoelectric conversion module, a pollutant recovery module, a pretreatment module and a carbon dioxide conversion module. The heat exchange unit comprises a heat exchanger and the like, a smoke inlet is connected with a boiler, and the heat exchanger recovers waste heat. The control unit is provided with a sensor group, a microprocessor and a controller, the sensor group comprises various sensors for detecting smoke related information, and the controller is provided with a self-adaptive learning module and a fault prediction subunit. The thermoelectric conversion module is connected with the heat exchange unit, and a heat dissipation structure is arranged in the thermoelectric conversion module. The carbon dioxide conversion module has a reactant supply unit. The heat exchange unit further comprises a heat storage subunit and the like. The device has the advantages that the heat exchange efficiency is improved through the heat exchange pipeline with the self-adaptive pipe diameter, the cost is reduced through the modular design, maintenance is convenient, the operation stability is improved through the controller function, and multi-stage energy utilization and carbon dioxide resource utilization are achieved through the thermoelectric conversion and carbon dioxide conversion module.

A thermoelectric conversion element includes a thermoelectric conversion portion, a connection portion, and an extension portion. The thermoelectric conversion portion, which includes an electroconductive magnetic body having ferromagnetism or antiferromagnetism and exhibiting an anomalous Nernst effect, linearly extends. The connection portion includes an electroconductive body electrically connected to the thermoelectric conversion portion. The extension portion is formed of, for instance, a magnetic body extending from the thermoelectric conversion portion. In the thermoelectric conversion element, for instance, the extension portion and the connection portion are layered.

The invention provides a thermodynamic optimization method and device for a thermoelectric power generation module and a medium. Belongs to the field of thermoelectric power generation, and comprises the following steps: firstly, determining an optimization target to maximize power output or improve energy conversion efficiency, then establishing a thermodynamic model which comprises heat conduction, heat convection and thermoelectric conversion processes, and setting parameters. An improved ant colony algorithm is adopted, a self-adaptive optimization strategy capable of automatically adjusting and optimizing parameters is designed, and the algorithm introduces volatilization factors and adds random disturbance to optimize the search process. And finally, a multi-objective optimization algorithm is introduced to realize effective balance between the electric power and the thermoelectric conversion efficiency. Through the series of steps, the thermodynamic property of the thermoelectric power generation module can be effectively optimized, so that the power output and energy conversion efficiency of the thermoelectric power generation module are improved.

The invention discloses an N-type gel ionic thermal battery, a quasi-solid gel electrolyte and a preparation method of the quasi-solid gel electrolyte, and belongs to the technical field of thermal regeneration batteries. The preparation method comprises the following steps: fully soaking polyacrylamide hydrogel in an electrolyte containing [Cu (NH3) 2] < + > / [Cu (NH3) 4] < 2 + > redox couple to obtain the quasi-solid gel electrolyte. And preparing the N-type gel ionic thermal battery by using the quasi-solid gel electrolyte. According to the prepared N-type gel ion thermal battery, the thermoelectric conversion performance such as thermoelectric potential and output power is remarkably improved through the synergistic effect of solvated structure entropy change generated by the oxidation-reduction reaction of the copper ammonia complex reaction couple and the quasi-solid gel electrolyte. The problems that research and development of an existing N-type gel ion thermal battery focuses on physical performance regulation and control of a gel matrix, thermoelectric contribution of an oxidation-reduction reaction cannot be effectively enhanced, and improvement of the Seebeck coefficient and the power density is limited can be effectively solved.

The present application provides a thermoelectric conversion apparatus, an electronic device, and a waste heat recycling system. The thermoelectric conversion apparatus includes: a power generator including a first end face and a second end face opposite to each other; lead terminals, both the first end face and the second end face of the power generator being provided with the lead terminals, wherein in a case where there is a temperature difference between the second end face and the first end face of the power generator, electric potential is generated in the power generator, and electric energy is output through the lead terminals disposed on the second end face and the first end face of the power generator; and a supporter configured to support and fix the power generator.

The invention is suitable for the technical field of waste gas recovery, and particularly relates to an industrial waste gas energy recovery method and system.The industrial waste gas energy recovery method comprises the steps that under the condition that it is detected that the waste gas temperature exceeds a preset threshold value in the industrial production process, first equipment information of waste gas source equipment is obtained; inquiring a thermoelectric conversion device connected with the waste gas source equipment based on the first equipment information of the waste gas source equipment, and determining second equipment information of the thermoelectric conversion device; according to the first equipment information and the second equipment information, the operation mode of a thermoelectric conversion device connected with the waste gas source equipment is set, and dynamic adjustment and efficient conversion of waste gas energy are achieved; according to the operation mode of the thermoelectric conversion device connected with the waste gas source equipment, the energy recovery effect of the thermoelectric conversion device is determined, the energy utilization efficiency in industrial production is remarkably improved, and the maintenance cost is reduced.

The invention discloses a contact type thermoelectric device and a preparation process thereof, and belongs to the technical field of thermoelectric conversion device manufacturing. The contact type thermoelectric device mainly comprises a hot end part, a positioning compression piece, a thermoelectric material and a cold end part. The preparation process of the contact type thermoelectric device mainly comprises the steps of preparation of a hot end part, preparation of a thermoelectric material part, preparation of a cold end part, design and preparation of a positioning compression part, overall preparation of the contact type thermoelectric device and assembly of a thermoelectric power generation system containing the contact type thermoelectric device. According to the contact type thermoelectric device, the electrode of the device hot end part and the thermoelectric material are in pressure contact, welding flux is omitted, a traditional welding process is replaced, and the service temperature of the thermoelectric device is greatly increased. According to the preparation process of the contact type thermoelectric device, the thermoelectric device is prevented from being in the environments of overhigh welding temperature, non-uniform heating and the like for a long time in the preparation process, and the performance degradation of the thermoelectric material is reduced.

The invention discloses a thermopile detector and a spectrum detector, relates to the technical field of spectrum detection, and provides a high-precision, high-performance, real-time and low-cost spectrum detection technical scheme. The thermopile detector comprises a substrate structure, a thermoelectric conversion structure and a phase change metamaterial structure, the thermoelectric conversion structure comprises a micro-heating structure and a thermocouple structure, the thermocouple structure is arranged on the substrate structure, the micro-heating structure is arranged above the thermocouple structure, and the phase change metamaterial structure is arranged above the micro-heating structure. The phase change metamaterial structure is used for absorbing light in a target wavelength range under the regulation and control of the micro-heating structure, converting the absorbed light energy into heat energy and transmitting the heat energy to the thermocouple structure, and the thermocouple structure is used for sensing first heat energy output by the micro-heating structure and second heat energy output by the phase change metamaterial structure; and the first heat energy and the second heat energy are converted into electric energy to be output.

The invention relates to the technical field of nuclear reactor design, in particular to an air-cooled nuclear reactor system for series thermal ionization magnetohydrodynamic power generation. Comprising a reactor core which comprises a fuel grid which is formed by a plurality of grid unit plates which are crossed transversely and longitudinally; each grid unit plate is made of sheet-shaped fuel; the thermal ionization magnetohydrodynamic power generation element is arranged outside the reactor core and is used for providing a magnetic field for the fuel grid; the cooling system is used for providing rare gas for the reactor core and is configured to enable the rare gas to exchange heat with the fuel grid and to be converted into conductive fluid in a generated magnetic field, and the conductive fluid flows in the generated magnetic field to generate induced electromotive force so as to realize thermoelectric conversion. While high thermoelectric conversion efficiency is ensured, the engineering feasibility of an air-cooled nuclear reactor system is improved, and the problems that gaseous nuclear fuel is prone to corrode structural materials, prone to leakage and large in aftertreatment difficulty are solved.

The invention relates to an LED packaging device and method, and belongs to the technical field of LED packaging, an electric heat recovery system is arranged to recover heat emitted by an LED assembly and convert the heat into current, the current is used for supplying power to an external battery, heat dissipation of the high-power LED assembly is achieved, meanwhile, the heat is converted into electric quantity and recovered, waste is avoided, and the environment is protected. The control assembly determines whether the power supply end of the LED assembly is the external battery or the power grid according to the electric quantity of the external battery, intelligent regulation and control of the electric quantity stored in the external power supply for power supply of the LED is achieved through two threshold values pre-stored in the control assembly, and heat dissipated by the LED is recycled more effectively. And the plurality of groups of thermoelectric conversion elements are connected in series, so that the heat emitted by the LED can be more effectively recovered.

The present invention discloses a motor stator winding reuse and battery heating control method, wherein the motor stator three-phase winding is used in parallel to form a motor stator winding combined inductance, which is combined with an inverter and a battery pack to form a battery internal heating system, so that the B1 battery pack and the B2 battery pack are mutually charged and discharged through the motor winding combined inductance, generating Joule heat to internally heat the battery pack; the present invention is suitable for internal preheating of lithium batteries at low temperatures, making full use of existing hardware resources of electric vehicles, and controlling the on and off of two sets of inverter full-control devices to generate self-heating current inside the lithium battery, and generating heat by mutual charging and discharging between batteries, thereby improving the thermoelectric conversion efficiency. The present invention is suitable for electric vehicles with multiple motors, and can meet the different needs of dual motors, multiple motor windings, and open winding motors.

The invention relates to the technical field of respirators, and discloses a respirator flow dynamic adjusting system based on airflow sensing, which is characterized in that after starting, a multi-mode sensing module acquires spatial flow velocity distribution and dynamic characteristics of respiratory airflow, and generates a composite data flow fused with flow field information; the composite data flow is subjected to nonlinear analysis to generate a state vector representing breathing stability, and the state vector is used for identifying fluid abnormal risks; the state vector generates an optimized execution instruction set by the self-adaptive control engine in combination with the energy state of thermoelectric conversion; the execution instruction set drives the piezoelectric valve and the shear response humidifying layer to cooperatively adjust the flow and the humidity, and outputs physiologically matched breathing gas; fusion collection of spatial flow velocity distribution and dynamic characteristics of respiratory airflow is achieved through the multi-mode sensing module, the limitation of traditional single-point measurement is broken through, and the sensing precision is remarkably improved; a breathing chaos index is constructed through nonlinear kinetic analysis, and early warning of the breathing rhythm stability and the fluid abnormal risk is achieved.

The invention provides a moon thermoelectric conversion device with a replaceable heat storage body, and belongs to the technical field of moon energy and power generation. In order to solve the core problems of discontinuous energy supply, complex system maintenance and the like in the existing lunar base energy technology, the invention provides a lunar thermoelectric conversion device with a replaceable heat storage body. The heat collection layer of the internal coupling heat pipe and the heat storage material internally provided with the heat conduction copper columns form a cold source and a heat source, cold and heat sources in the moon day and the moon night are exchanged, and the continuous and stable power supply capacity of the moon day period is achieved. The device upper cover of the power generation part is in threaded connection with the device inner container of the heat storage part, modular disassembly and replacement can be achieved under the condition that the multi-stage thermoelectric generator fails, and replacement of the heat storage body can also be achieved. A copper column heat conduction mode is adopted in the vertical direction, the problem that gravity reverse heat transfer performance is poor is solved, and day and night uninterrupted supply of lunar base energy is expected to be achieved.

The invention relates to the technical field of hydrogen production, in particular to an all-weather hydrogen production device and a hydrogen production method.The hydrogen production device comprises a heat collection module, a heat storage and thermoelectric conversion module and a hydrogen production module; the heat storage and thermoelectric conversion module comprises a first heat storage assembly and a second heat storage assembly which have a temperature difference, and is used for providing electric energy for the water electrolysis hydrogen production module through a thermoelectric conversion effect; the hydrogen production module comprises a photocatalytic hydrogen production module and a water electrolysis hydrogen production module, a cathode in the photocatalytic hydrogen production module and a cathode of the water electrolysis hydrogen production module are the same cathode, and an anode in the photocatalytic hydrogen production module and an anode of the water electrolysis hydrogen production module are integrated in the same anode; the anode comprises a conductive electrode, and a photocatalytic hydrogen production anode catalyst and a water electrolysis hydrogen production anode catalyst which are respectively attached to two sides of the conductive electrode. According to the device, photocatalytic hydrogen production and water electrolysis hydrogen production are combined in the same set of device, the equipment integration degree is high, a plurality of assemblies are integrated and connected for use, the hydrogen production cost is low, and the efficiency is high.

The invention relates to the technical field of new energy automobiles, and provides a hydrogen fuel cell automobile thermoelectric-thermal management cooperative system and a new energy automobile, and the system comprises a hydrogen fuel electric pile, a main cooling loop and a secondary cooling loop connected in parallel with the hydrogen fuel electric pile. The hot end and the cold end of the thermoelectric conversion module are connected to the primary loop and the secondary loop respectively. A cab evaporator and an auxiliary evaporator are sequentially connected in series through a refrigerant loop of the vehicle-mounted air conditioning system, and the auxiliary evaporator is connected to the upstream of the cold end of the thermoelectric conversion module on the secondary loop in series. The controller controls the air conditioner to operate based on the passenger compartment refrigeration demand. When the air conditioner is started to cool the passenger compartment, the refrigerant flowing through the auxiliary evaporator can cool the secondary loop cooling liquid again, so that the temperature of the cold end of the thermoelectric conversion module is reduced, the power generation temperature difference is increased, the waste heat power generation efficiency is improved, and the overall heat dissipation capacity of the system is enhanced synchronously. According to the system, intelligent coupling and energy gradient utilization of air conditioner refrigeration, waste heat recovery and whole vehicle heat management are achieved.

The invention discloses a preparation method and application of a near-infrared carbonized polymer dot aggregate, and relates to the technical field of composite material preparation. Comprising the following steps: assembling carbonized polymer dots (CPDs) in a hydrogen bond acceptor solvent to obtain a CPDs aggregate; the CPDs are prepared from citric acid and benzoylurea. The specific implementation method of the application in the preparation of the photo-thermoelectric conversion equipment comprises the following steps: blending the CPDs aggregate with a polymer to carry out hybridization reaction to obtain a photo-thermal conversion module; the photo-thermal conversion module is loaded on a semiconductor device to form photo-thermoelectric conversion equipment. The preparation method of the CPDs aggregate is simple and efficient, the construction controllability of the aggregate is improved, and the CPDs aggregate has an efficient photo-thermal conversion effect and has a good application prospect in the aspect of photo-thermoelectric continuous energy transfer devices or photo-thermoelectric generators.

The embodiment of the invention relates to the field of devices for converting heat energy or kinetic energy into electric energy, in particular to a supercritical carbon dioxide Brayton cycle thermoelectric conversion system. Supercritical carbon dioxide flows out of the main heat exchanger of the reactor, exchanges heat with the system and flows back to the main heat exchanger. The system comprises a turbine used for receiving gas from a main heat exchanger and converting heat energy into kinetic energy, a generator used for receiving the kinetic energy from the turbine and converting the kinetic energy into electric energy, and a heat regenerator used for receiving gas from the turbine and gas from the turbine. The cooler is used for receiving the gas from the heat regenerator and cooling the gas; the compressor is used for receiving the gas from the cooler and compressing the gas; and the dry gas sealing device is used for providing high-pressure supercritical carbon dioxide for the turbine and the compressor and is arranged to take gas from the system and enable the gas to meet the preset temperature requirement. The system provided by the embodiment of the invention is beneficial to improving the output electric power and improving the thermoelectric conversion efficiency.

The present invention provides a molten salt storage tank and a molten salt electro-thermal long-duration energy storage device. This device can directly replace existing coal-fired and gas-fired industrial steam boilers, thereby promoting centralized gas supply and heating through molten salt heat storage in industrial parks; it can also directly provide centralized heating for residential areas. At the same time, when the molten salt electro-thermal long-duration energy storage device of the present invention is combined with a supercritical carbon dioxide power generation unit, a new type of efficient "electricity-thermal-electricity" technical mode is generated, which can replace existing pumped-storage power stations and chemical energy storage stations and become a large-capacity long-duration energy storage technology. The present invention has the advantages of compact structure, simple system, low heat storage cost, high heat release efficiency, small system heat loss, high electro-thermal and thermoelectric conversion efficiencies, can achieve modular, standardized, batch, and factory production, has safety, economy, and flexibility, and also has the characteristics of strong regulation ability, short construction period, low site selection requirements, and flexible construction scale.

The invention discloses a self-powered temperature control and dynamic thermal compensation system, and belongs to the technical field of energy recovery and intelligent thermal management, the self-powered temperature control and dynamic thermal compensation system comprises a vibration energy capture and power generation subsystem and a bidirectional thermal compensation subsystem, the vibration energy capture and power generation subsystem comprises a piezoelectric array, a thermoelectric module and an energy storage device; the piezoelectric array is used for capturing vibration energy and converting the vibration energy into first electric energy, the thermoelectric module is used for conducting thermoelectric conversion through the temperature difference between the interior and the exterior of an oil tank to generate second electric energy, and the first electric energy and the second electric energy are stored in the energy storage device. The bidirectional thermal compensation subsystem comprises a thermoelectric refrigeration sheet, the thermoelectric refrigeration sheet is used for consuming electric energy in a low-temperature environment to heat the oil liquid, refrigerating the oil liquid in a high-temperature environment and converting waste heat into third electric energy, and the third electric energy is stored in the energy storage device. Self power supply is achieved through vibration energy and temperature difference generated in the vehicle running process, and stable temperature control over the oil tank can be achieved in the extreme environment.

The invention discloses a method for determining the feed water flow of an evaporator of a nuclear power station and a related device, and relates to the technical field of thermoelectric conversion, and the method comprises the steps: obtaining the steam flow of an outlet of the evaporator, the secondary loop pressure of the evaporator, and the feed water temperature and nuclear power of an inlet of a main water supply pipe; the specific enthalpy coefficient is determined by looking up a table according to the secondary loop pressure of the evaporator and the feed water temperature, and the specific enthalpy coefficient is the ratio of the steam specific enthalpy to the feed water specific enthalpy; the nuclear power is converted into theoretical steam flow, the theoretical steam flow is used for verifying the steam flow of an evaporator outlet, and if verification passes, the steam flow of the evaporator outlet is used as one of the inputs of the feed water flow soft measurement model; and inputting the specific enthalpy coefficient, the steam flow at the outlet of the evaporator and the secondary loop pressure of the evaporator into a water flow soft measurement model to obtain the theoretical feed water flow. According to the method, high-precision dynamic measurement and calculation of the water supply flow of the evaporator are realized based on the water supply flow soft measurement model.

The invention discloses a TEC photo-thermal stable thermoelectric power generation device and a preparation method thereof, and relates to the technical field of thermal power generation, and the TEC photo-thermal stable thermoelectric power generation device comprises an energy capture module, a thermoelectric power generation module and a dual-mode heat dissipation module which are sequentially arranged from top to bottom; the energy capture module comprises a silicon substrate with a micro-cone array on the surface, a phase change energy storage buffer dielectric layer coated on the surface of the micro-cone array, and a silicon carbide film layer, a titanium nitride film layer and a titanium nitride nanoparticle layer which are sequentially arranged on the surface of the phase change energy storage buffer dielectric layer; the thermoelectric power generation module comprises a corrugated metal composite substrate and a plurality of thermoelectric units arranged on the surface of the metal composite substrate. The bottleneck that a traditional single material is insufficient in solar spectrum coverage is broken through, the solar energy utilization efficiency is greatly improved, excessive heat generated by sudden change of instantaneous illumination intensity can be effectively absorbed, and continuous and stable heat source input is provided for thermoelectric conversion.

The invention discloses a thermal insulation photovoltaic-thermoelectric coupling system for severe cold areas, which comprises a photovoltaic cell, a phase change container, a phase change material and a thermoelectric power generation sheet, and is characterized in that the phase change container filled with the phase change material and the thermoelectric power generation sheet are sequentially arranged below the photovoltaic cell; the bottom of the photovoltaic cell is connected with the upper side of the phase change container through heat-conducting glue, the lower side of the phase change container is connected with the thermoelectric power generation sheet through heat-conducting glue, phase change materials in the phase change container utilize and transfer heat generated by the photovoltaic cell in the whole process, the effect of keeping and slightly increasing the temperature of the photovoltaic panel is achieved, and meanwhile large heat flow input is provided for the hot end of the thermoelectric sheet. Effective utilization of solar energy is ensured through the two effects, and the conversion efficiency of the coupling system is improved. In addition, the cold ends of the thermoelectric pieces make contact with the external environment, waste heat is dissipated into the cold environment through convection and radiation heat dissipation, and thermoelectric conversion is maintained.