616 results about "Heat storage material" patented technology

The invention discloses a high heat storage density stable thermochemical adsorption composite heat storage material and a preparation method thereof, the high heat storage density stable thermochemical adsorption composite heat storage material comprises 54%-57% by mass of mixed salt and 43%-46% by mass of a porous material, the mixed salt comprises MgSO4 and MgCl2, the mass ratio of MgSO4 to MgCl2 is 9: 1-6: 4, and the porous material is expanded perlite modified by nano alumina or a silane coupling agent. The high-heat-storage-density stable thermochemical-adsorption composite heat storage material provided by the invention is simple in preparation method, and the modified expanded perlite is used as a carrier of the mixed hydrated salt; the obtained composite heat storage material has excellent performance: the salt-containing load rate is 114-121%, the water absorption rate is 1.2-1.28 g / g, the heat storage density is 1123.5-1208.6 kJ / kg, the heat storage temperature is 133.4-141.3 DEG C, the structural strength is 10.346-12.631 kPa, the structural stability is 99.27-99.53%, and the stability is 79.7-83.3% after circulation for 30 times, that is, the composite heat storage material is high in heat storage density, high in water absorption rate, low in heat storage temperature, high in strength and not easy to scatter and fall off, and the composite heat storage material is suitable for large-scale production. And the material also has relatively good cycling stability.

The invention provides a waste heat recovery method and system for a phase change heat storage data center, and the method comprises the steps: dynamically adjusting the heat storage capability of a heat storage system of the phase change heat storage data center according to a correlation mapping relation between load fluctuation and heat generation, and analyzing the phase change temperature and latent heat value of a material; determining the heat absorption rate range of the material under different loading conditions; aiming at a heat absorption rate range, combining a nonlinear change rule of a heat storage material to construct a prediction model of a heat release rate, acquiring a dynamic adjustment parameter of heat release from the prediction model as model output, and judging whether the heat release rate meets a heat demand of a user side or not; and according to the optimized heat release rate data, the constant temperature maintaining time of the heat storage material in the solid-liquid conversion process is monitored in real time, and the stability index of the temperature platform is determined.

The invention discloses a multi-energy cooperative control method and system with a self-adaptive disturbance discrimination function, and relates to the technical field of energy cooperative control, and the method comprises the following steps: constructing a multi-band phase fingerprint sequence based on the instantaneous voltage response of a photovoltaic array, and forming an initial energy transition baseline through extracting microsecond phase deviation tracks in different bands; and based on the initial energy transition baseline, constructing time series dynamic gradient mapping, converting the phase deviation trajectory into continuous power gradient distribution, and identifying a potential acceleration fragment in the power gradient distribution. According to the method, a high-sensitivity energy identification mechanism is constructed, pre-judgment is carried out in advance before photovoltaic output sharply rises, and power of different frequency bands is guided to enter a layered energy storage path based on a high-risk window, so that energy deposition according to needs is realized, local thermal stress concentration is avoided, and structural damage and energy storage attenuation of a heat storage body are effectively prevented; the stability and safety of electric heating are improved, and the service life of heat storage materials is prolonged.

The invention relates to the technical field of traditional Chinese medicine physical therapy instruments, in particular to a traditional Chinese medicine physical therapy hot compress device which comprises a waistband body, a temperature uniformizing layer, a physical therapy assembly and a control module. A control module is arranged in the middle of the waistband main body, flexible heating belts are symmetrically arranged on two sides, and adjustable connecting pieces (clamping seats and buckling pieces) are arranged at two ends of the waistband main body, so that the waistline is convenient to adjust; a temperature uniformizing layer and a physiotherapy assembly are sequentially arranged on the inner side of the flexible heating belt, the temperature uniformizing layer is provided with a flexible bag, and the flexible bag is filled with a phase change heat storage material; the physiotherapy assembly comprises a physiotherapy bag and a detachable medicine bag; the control module is provided with a display screen, an adjusting button, an external charging port, a storage battery pack, a temperature sensor and a microprocessor; according to the device, the temperature is accurately controlled through the temperature sensor and the microprocessor, the heat is uniformly distributed through the temperature uniform layer and the phase change material, a user can change a medicine bag according to needs to achieve personalized physiotherapy, and the device has the advantages of being accurate and controllable in temperature, uniform in heat distribution, high in physiotherapy pertinence, convenient and flexible to use and stable and reliable in endurance.

The application discloses finned tube type phase change heat storage equipment, including heat storage shell, both ends of heat storage shell are provided with sealing end plate, two sealing end plates are arranged, the inside of heat storage shell between two sealing end plates is provided with partition layer, the middle of heat storage shell is provided with coaxial center flow pipe, the opposite ends of center flow pipe are sealed and penetrated through sealing end plate through sealing sleeve, the space between partition layer and center flow pipe is set as phase change heat storage cavity, the inside of partition layer and the outside of center flow pipe are provided with heat transfer fin, the application belongs to phase change heat storage technical field, the purpose of the application is to solve the problems of low heat storage efficiency and poor equipment stability in prior art, the technical effects are as follows: double flow makes phase change heat storage efficiency improved, double cavity phase change heat storage material is arranged in heat storage equipment, heat storage energy efficiency is high, fin strengthens phase change heat storage and structural support, equipment is stable, and has good sealing and plugging performance.

The invention discloses a multi-element sintering aid reinforced zirconia-based heat storage ceramic as well as a preparation method and application thereof. The preparation method of the heat storage ceramic comprises the following steps: taking ZrO2 and Al2O3 as matrix materials, ball-milling and uniformly mixing the matrix materials with a sintering aid, and drying to obtain mixed powder; the matrix material is prepared from the following components in percentage by mass: 70 to 80 weight percent of ZrO2 and 20 to 30 weight percent of Al2O3; the sintering aid is prepared from TiO2, MgO, kaolin and CeO2; sieving the mixed powder, and sequentially performing granulation, aging and forming treatment to obtain a ceramic green body; and sintering the ceramic green body at the temperature of 1500-1600 DEG C to obtain the ceramic. According to the invention, the zirconia-based heat storage ceramic with high strength and high thermal shock resistance is successfully prepared by adopting the combination of multiple cation sintering aids, and the zirconia-based heat storage ceramic can be used as a heat storage material for long-term service in a solar thermal power generation system.

The invention relates to the technical field of heat energy storage materials, and particularly provides a silicon dioxide aerogel composite phase change heat storage material and a preparation method thereof. The method comprises the following steps: mixing an organic silicon source, absolute ethyl alcohol and deionized water according to a specific ratio, fully stirring to obtain a mixed solution, and dropwise adding an acid catalyst into the mixed solution at room temperature for hydrolysis reaction to obtain a hydrolysate; sequentially adding a drying control agent and an alkali catalyst, and standing for gelation reaction to obtain gel; adding an organic solvent to carry out aging reaction, and then adopting the organic solvent to carry out replacement for multiple times to obtain alcogel; replacing the alcohol gel with an organic solvent for multiple times to obtain wet gel, soaking the wet gel in an excessive molten phase change material, and carrying out normal-pressure solvent replacement and drying at 40 DEG C to obtain the phase change material, the loading capacity of octadecane in the obtained CPCM is about 83%, the phase change enthalpy reaches up to 192J / g, the heat conductivity is as low as 0.0812 W / m.K, and no obvious leakage occurs after 200 times of circulation.

The invention discloses a nano phase change heat storage material with high decomposition temperature as well as a preparation method and application thereof, and belongs to the technical field of mixed molten salt energy storage materials. The nanometer phase change heat storage material is composed of 99 wt% of low-melting-point mixed molten salt and 1 wt% of SiO2 nanometer particles. The low-melting-point mixed molten salt is composed of potassium nitrate, sodium nitrite and sodium nitrate according to the mass ratio of 53: (10-30): (17-37). The low-melting-point and high-decomposition-temperature nanometer phase change heat storage material with the melting point being 150-175 DEG C and the decomposition temperature being 660-723 DEG C is prepared by combining the mixed molten salt composed of potassium nitrate, sodium nitrite and sodium nitrate according to the specific dosage ratio with SiO2 nanoparticles, the melting point of the phase change material is low, energy consumption can be effectively reduced, and the energy consumption is reduced. And the composition has good decomposition temperature, melting latent heat and other thermophysical properties.

The invention relates to the technical field of heat storage materials, in particular to a simulation method for strengthening the heat storage performance of molten salt by using nano-particle oxygen vacancy defects. The method comprises the following steps: constructing a unit cell structure of silicon dioxide, determining a nanoparticle model containing a surface oxygen vacancy defect based on the unit cell structure of silicon dioxide, and constructing a final silicon dioxide-potassium carbonate nanofluid model based on the nanoparticle model containing the surface oxygen vacancy defect; performing molecular dynamics simulation based on the final silicon dioxide-potassium carbonate nanofluid model to obtain molecular dynamics simulation data; based on molecular dynamics simulation data, the final heat storage performance parameters of the silicon dioxide-potassium carbonate nanofluid model are determined, and by means of the setting mode, results obtained through simulation discover that the heat storage performance of the molten salt can be effectively improved through nano-particle oxygen vacancy defects.

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 field of building heat storage materials, in particular to fly ash-based inorganic phase-change heat storage aggregate based on solid waste utilization and a preparation method of the fly ash-based inorganic phase-change heat storage aggregate. According to the inorganic phase change aggregate, fly ash is selected as a raw material, gel balls are used as a template, fly ash hollow balls are obtained through granulation, drying and sintering, and the hollow balls have good compressive strength; and enabling the fly ash hollow spheres to bear inorganic hydrated salt through a vacuum adsorption method, and packaging for three times to obtain the fly ash-based phase change aggregate. According to the inorganic phase-change aggregate prepared by the method, the fly ash is selected as an aggregate matrix, the gel beads are used as a core material for granulation, water spraying is not needed in the granulation process, and the process flow is simple, low in cost and easy to implement. The inorganic phase change aggregate prepared by the invention has the mechanical strength of the aggregate and also has a phase change heat storage function; and the inorganic hydrated salt phase change material is used, so that the phase change material also has nonflammable performance.

The invention provides a phosphogypsum-based composite low-temperature heat storage material based on lattice defects and a preparation method of the phosphogypsum-based composite low-temperature heat storage material. The phosphogypsum-based composite low-temperature heat storage material comprises a hydratable calcium sulfate material, a zinc-containing compound and a heat-conducting framework material, wherein the hydratable calcium sulfate material comprises one or more of anhydrous phosphogypsum and semi-hydrated phosphogypsum; the heat-conducting framework material comprises any one of expanded graphite, graphene, carbon nanotubes, boron nitride or silicon carbide. The material prepared by the invention has low phase change temperature, high heat storage density, high heat conductivity and excellent cycle stability, and overcomes the key technical bottleneck of the traditional hydrated salt and ardealite-based heat storage material at one stroke.

The invention discloses a high-temperature composite phase change heat storage material and a preparation method thereof, and belongs to the technical field of composite phase change heat storage materials. The composite phase change material comprises a matrix and a phase change material, the base body is porous ceramic, and the porous ceramic comprises a lining with a porous structure and a surface layer with a porous structure; compared with the pore diameter of the lining, the pore diameter of the surface layer is smaller; the high-temperature salt in a molten state can enter the inside through small holes in the surface layer; the surface layer can avoid leakage of high-temperature salt in a molten state, and the lining provides a storage and phase change space for the high-temperature salt; the porosity of the lining is larger than that of the surface layer, and the phase change material comprises high-temperature salt.

The invention relates to the technical field of energy and power engineering, and discloses an efficient thermoelectric decoupling system based on phase change energy storage, which comprises an energy storage unit module, a regulation and control algorithm module and a scheduling optimization module. The energy storage unit module adopts a nanotechnology novel phase change material, so that the energy storage density and stability are improved; the regulation and control algorithm module realizes accurate control of charging and discharging through a multi-stage regulation and control strategy; and the scheduling optimization module predicts energy demand and production by using a machine learning algorithm, and dynamically adjusts an energy distribution strategy. The problems that a traditional heat storage material is low in energy storage density and poor in stability and lacks an intelligent scheduling mechanism can be solved, the energy utilization efficiency and operation reliability of a thermoelectric system are improved, and the energy cost is reduced.

The present invention provides a calcium-based thermochemical heat storage material modified with high-entropy fluorite oxide and a preparation method thereof. The material comprises a calcium-based material and a high-entropy fluorite oxide, with the calcium-based material accounting for 70-85% by mass. The calcium-based material is calcium oxide, and the high-entropy fluorite oxide is a fluorite-structured oxide formed by zirconium, cerium, lanthanum, neodymium, and ytterbium, with a molar ratio of 1:1:1:1:1 for the oxides of zirconium, cerium, lanthanum, neodymium, and ytterbium. The invention utilizes the high-entropy fluorite oxide as an anti-sintering component to disperse calcium oxide and prevent its sintering, while simultaneously promoting the adsorption, dissociation, and migration of CO2 on the surface of the material, thereby enhancing the cycling stability and energy density of the heat storage material.

The invention discloses a preparation method of a photo-thermal conversion-phase change heat storage polyurethane flexible film, and relates to the technical field of polyurethane phase change materials. According to the invention, polyethylene glycol is used as a polymeric monomer and a phase change heat storage substrate, diisocyanate and dimethylolbutyric acid are used as reaction monomers, any one of 3, 3-dithio-bis-propionyl hydrazide or (R, R)-3, 3 '-diseleno-bis (2-aminopropionic acid) is used as a cross-linking agent, and transition metal carboxylate and a nano photo-thermal conversion agent are introduced to prepare the phase change heat storage material. And the polyurethane flexible film with photo-thermal conversion-phase change heat storage is prepared. A hydrazide group at the tail end of a cross-linking agent and an isocyanate group are subjected to nucleophilic addition reaction to generate a hydrazide-urea structure of which the main chain contains disulfide bonds and constructs multiple hydrogen bonds, and meanwhile, a metal carboxylate coordination bond is introduced, so that the film is endowed with an excellent mechanical response effect in a wide temperature range; the nano photo-thermal conversion agent is added into the system, so that the system has good photo-thermal conversion performance.

The invention provides a hydrophilic modified porous graphite-based phase change heat storage material and a preparation method thereof, and relates to the technical field of phase change heat storage materials. The hydrophilic oxide layer is constructed on the pore surface of the porous graphite, so that the porous graphite is changed from hydrophobicity to hydrophilicity, and the application limitation caused by original strong hydrophobicity is effectively overcome. The oxide layer is stable in property in a high-temperature environment, the applicable temperature range of the material is remarkably widened, erosion of oxygen to a carbon skeleton can be blocked, the structural integrity of the porous graphite is protected, and the service life of the material is prolonged. The high-enthalpy polar phase change material can be efficiently compounded with the hydrophilic modified porous graphite in a solution spontaneous impregnation manner by virtue of good flowability and permeability of an aqueous solution of the high-enthalpy polar phase change material, so that the preparation process is greatly simplified. The finally prepared hydrophilic modified porous graphite-based phase change heat storage material has high thermal conductivity and high heat storage density, shows excellent comprehensive performance, and solves the problem that a polar phase change substance with a high enthalpy value is difficult to be effectively compounded with porous graphite.

Disclosed is a polyurethane containing a structural unit (A) derived from an aromatic compound having an isocyanate group with an average number of functional groups of 2.1 or more and a structural unit (B) derived from a polyalkylene ether glycol. It is possible to provide a polyurethane for a heat storage material having good heat storage properties and heat resistance, excellent moldability, and good shape retainability against heating and cooling, a heat storage material containing the polyurethane, and a heat storage molded body.

The invention provides a dark metal modified lithium orthosilicate-based thermochemical heat storage material as well as a preparation method and application thereof, and belongs to the technical field of energy and material science. The components of the heat storage material comprise lithium orthosilicate and dark metal, the proportion of the dark metal in the heat storage material is 2-10 mol%, and the source of the dark metal comprises one or more of manganese dioxide, ferric oxide, nickel oxide and copper oxide. Metal ions introduced into the obtained dark metal modified lithium orthosilicate-based thermochemical heat storage material have the effects of promoting the ion migration rate and resisting material sintering, and specifically, the heat storage density and the cycling stability of the material are remarkably enhanced. In addition, due to the introduction of the dark metal oxide, the color of the heat storage material is remarkably deepened, the solar spectrum absorptivity is greatly improved, the light absorption performance of the material is greatly enhanced, and the heat storage material has higher photo-thermal conversion efficiency and is more suitable for a concentrating solar energy storage system.

The invention discloses pig manure organic fertilizer fermentation treatment equipment, and relates to the technical field of organic fertilizer ferment.The pig manure organic fertilizer fermentation treatment equipment comprises a fermentation tank, a rotating assembly and a heat absorption and humidification assembly.The characteristics of a phase change heat storage material and a memory alloy block are utilized, heat can be automatically stored and released according to the temperature change in the fermentation tank, and the energy consumption is reduced; meanwhile, liquid release is accurately controlled, the humidity is adjusted, the most suitable temperature and humidity environment is provided for pig manure fermentation, the fermentation efficiency and the organic fertilizer quality are remarkably improved, when the temperature in the fermentation tank is reduced, air is blown into the fermentation tank, and the air flows through the annular pipe, heat stored in the heat storage cavity is absorbed and released into the fermentation tank again, the fermentation temperature is maintained, and the fermentation efficiency is improved. The high-temperature humidity reduction requirement in the initial fermentation stage and the low-temperature heating requirement in the later fermentation stage can be effectively met.

The invention belongs to the technical field of phase change heat storage materials, and particularly relates to a phase change composite heat storage and energy storage material and a preparation method thereof. The phase-change composite heat and energy storage material comprises the following raw material components: sodium acetate trihydrate, disodium hydrogen phosphate dodecahydrate, porous silicon dioxide, nano Al2O3, expanded graphite, borax, polyacrylamide and the balance of water. The preparation method of the material comprises the following steps: S1, heating sodium acetate trihydrate to a molten state, and dipping into porous silicon dioxide; s2, adding borax, nano Al2O3, disodium hydrogen phosphate dodecahydrate, polyacrylamide and water, and stirring for dissolving; s3, adding expanded graphite, and grinding; and S4, cooling to obtain the product. The invention aims to solve the key problems of high supercooling degree, phase separation, insufficient phase change latent heat, poor comprehensive performance and the like of the existing phase change heat storage material, and a new material meeting the requirements of building heating, industrial waste heat recovery, solar heat storage and other fields on efficient heat storage and heat management is prepared.

The invention discloses an intelligent uniform heating adjustment method and system for precise temperature control of a phase change heat storage material, and relates to the technical field of intelligent heating adjustment. Temperature distribution and solar radiation intensity of a heat storage unit are collected in real time, the temperature gradient change trend is predicted, and a phase change abnormal unit is identified; the method comprises the steps that phase change abnormal units are obtained, energy distribution weights are optimized according to the heat charging state difference of the phase change abnormal units, an energy distribution weight coefficient is obtained, then the heat medium flow and the heat dissipation strategy are dynamically adjusted according to the energy distribution weight coefficient and a corresponding flow control instruction, and meanwhile the solar radiation intensity change trend and the indoor temperature requirement are combined. According to the invention, the fine regulation and control phase change process of the phase change heat storage material is realized, the precise regulation of the multi-unit temperature gradient and the dynamic optimization of energy distribution are realized, the uniform temperature distribution is ensured, and the heat energy transfer efficiency is optimized, so that the heat energy utilization efficiency and stability of the system are remarkably improved, and efficient and intelligent heat energy management is realized.

The invention provides a high-temperature solid heat storage material based on industrial solid waste, a preparation method of the high-temperature solid heat storage material and a heat storage pile, and belongs to the technical field of energy and new energy storage and energy saving materials. The high-temperature solid heat storage material is prepared by introducing three functional additives with a synergistic effect: a composite alkali-boron activator is used for bonding and forming solid waste raw materials through a geological polymerization reaction at a low temperature, and is converted into a fluxing agent at a high temperature to promote low-temperature densification of the material; a core-shell structure thermal conductivity reinforcing agent with an anti-oxidation glass shell layer constructs an efficient three-dimensional heat conduction network in the material, and the heat conduction rate is increased; meanwhile, the Li-Al-Si vitrified precursor powder is induced to separate out low-thermal-expansion microcrystals in a third temperature stage, and the material is endowed with thermal shock resistance stability through a microstress compensation mechanism; the three additives have a synergistic effect to improve the heat storage performance and mechanical stability of the material.

The invention discloses an indoor temperature adjusting system based on a solar photovoltaic panel shutter, and belongs to the technical field of building energy conservation. The solar photovoltaic panel is used for power generation, self power supply of the shutter indoor temperature adjusting system is achieved, and external output of electric energy is achieved. Through motor control, the photovoltaic panel is driven to follow light directionally, and better photoelectric conversion efficiency is achieved. The blind window is arranged between the two pieces of single-layer glass, four air flow channels communicated with the outside are designed, the function of adjusting indoor cooling and heating loads according to requirements in different seasons is achieved, and good energy conservation and emission reduction characteristics and economical efficiency are achieved. In addition, the composite phase change heat storage material is additionally arranged on the back face of the photovoltaic panel, the situation that the overheating efficiency of the photovoltaic panel is reduced due to high temperature can be effectively reduced, and the indoor temperature adjusting function is achieved. The system has the advantages that the photovoltaic efficiency is high, indoor cooling and heating loads can be adjusted, air conditioner power consumption is reduced, and the effects of energy conservation and emission reduction of buildings are achieved.

The invention provides an MXene synergistic composite phase change heat storage material and a preparation method thereof, and belongs to the technical field of phase change heat storage materials. Comprising the following steps: reacting graphite with mixed acid and potassium permanganate through an improved Hummers method, and carrying out centrifugal washing, dialysis and drying to obtain graphene oxide GO powder, dispersing MXene and the graphene oxide GO powder in deionized water, performing ultrasonic treatment, stirring and mixing, adding nanocellulose CNF and citric acid CA, continuing stirring, and performing directional freezing and freeze drying to obtain three-dimensional aerogel; the three-dimensional aerogel and molten paraffin are compounded through vacuum impregnation, and the MXene-based composite phase change heat storage material is obtained. The MXene-based composite phase change material prepared by the invention has high mechanical strength, can effectively prevent leakage during phase change of the organic PCMs, still keeps higher load rate and stable structure and shape after multiple cycles, and can be applied to the fields of microminiature thermal management and the like.

The invention provides a supercritical carbon dioxide heat storage system heat exchange network optimization method and device based on pinch point optimization, and the method specifically comprises the following steps: calculating the temperature and flow of a heat storage material corresponding to a heat exchange pinch point according to the working medium flow of a first heat exchanger and the working medium temperature of the assumed heat exchange pinch point; the temperature of inlet and outlet heat storage materials of the first heat exchanger is obtained; determining the working medium outlet temperature of the second heat exchanger by using the first heat exchanger outlet heat storage material temperature and the minimum heat exchange temperature difference; according to the working medium outlet temperature and pressure of the second heat exchanger and heat engine circulation parameters, the working medium inlet and outlet temperature of the third heat exchanger is determined, and the heat storage material temperature, flow and inlet and outlet temperature corresponding to the heat exchange pinch point are calculated; and when the temperatures of the working medium in the fourth heat exchanger and the heat storage material at the outlet of the third heat exchanger meet the minimum temperature difference limit, calculating the round-trip efficiency of the heat storage system at the assumed heat exchange pinch point working medium temperatures of the first and third heat exchangers, and selecting the optimal temperature to complete heat exchange network optimization, thereby improving the heat exchange efficiency of the system.

The invention provides a high-temperature heat storage method and system of a coupling peak regulation boiler. The method comprises the steps that hot flue gas of the peak shaving boiler and a low-temperature solid particle heat storage material are mixed and subjected to heat exchange, and a high-temperature solid particle heat storage material is obtained; the high-temperature solid particle heat storage material is stored in a heat preservation mode; the high-temperature solid particle heat storage material exchanges heat with water or water vapor to generate high-temperature steam, and at least part of the high-temperature steam is used for power generation; carrying out mixed heat exchange on the high-temperature solid particle heat storage material and gas to obtain high-temperature flue gas; and at least part of the high-temperature flue gas is sent back into the peak regulation boiler. The technical scheme can be widely applied to the technical field of boiler peak regulation.

The invention discloses a condensation solar cement calcining kiln with a heat storage function and a working method thereof, and belongs to the field of energy and building material production, the condensation solar cement calcining kiln comprises a solar condenser, a cement calcining kiln, a solid heat storage material, a circulating heat release unit and a system control device, the solar condenser focuses solar energy through a daylighting opening of the cement calcining kiln, and cement clinker sintering is achieved; low-temperature gas discharged from the calcining kiln enters the raw material preheating tank to provide raw material preheating heat; the solid heat storage material in the kiln cavity absorbs sunlight and raw material radiant heat to store heat; when solar irradiation fluctuates, the circulating heat release unit enables air to exchange heat with a heat storage material, and high-temperature air required by continuous calcination is provided; the system control device regulates and controls the position, temperature and reaction process of the kiln body. Through integration of light condensation, heat absorption and heat storage, calcination of the zero-carbon cement is achieved, high-temperature CO2 gas and high-temperature air in the calcination process can be used for preheating raw materials, and gradient utilization of solar energy is achieved.

In one embodiment, a heat storage power generation system includes a heater configured to heat first heat transfer fluid. The system further includes a heat storage including a heat storage material heated by the first heat transfer fluid, and configured to heat second heat transfer fluid with heat stored in the heat storage material. The system further includes a power generator configured to generate electric power by using the second heat transfer fluid. The system further includes one or more temperature meters configured to measure internal temperature of the heat storage. The system further includes a power generation controller configured to control power generation performed by the power generator, based on the internal temperature measured by the temperature meters.

The invention relates to the technical field of battery heat management, in particular to a low-conductivity electric vehicle battery cooling liquid and a preparation method thereof.The cooling liquid is composed of a composite base solution, a three-stage core-shell structure heat storage functional body, a low-conductivity flame retardant, a precise corrosion inhibition system, a self-repairing agent and a composite additive, the heat storage functional body is prepared through in-situ preparation of the heat storage functional body, ultrasonic high-pressure homogeneous composite dispersion, gradient compounding of auxiliaries and a precise filtering process. The heat storage temperature range is widened through the binary phase change core material, the problems of heat storage material leakage and low heat conduction efficiency are solved through the three-stage core-shell structure, the contradiction between multiple functions and low conductivity is solved through the low-conductivity modification additive, and finally the comprehensive performance of low conductivity, high phase change enthalpy, low metal corrosion rate, wide-temperature-range stable work and long service life is achieved. The cooling liquid is suitable for multiple scenes such as electric vehicles, energy storage power stations and hydrogen fuel cells, the preparation process is controllable, and the cooling liquid is suitable for large-scale production and wide in application prospect.