272results about "Absorbing elements" patented technology

The invention relates to a salt-scale-resistant anoxic TiO2 ceramic photo-thermal evaporation material with a vertical pore structure and a preparation method of the salt-scale-resistant anoxic TiO2 ceramic photo-thermal evaporation material. The salt-scale-resistant anoxic TiO2 ceramic photo-thermal evaporation material with the vertical pore channel structure is rutile phase anoxic TiO2 with a non-stoichiometric ratio, the chemical composition is TiO2-x, and x is more than 0 and less than 2; the photo-thermal evaporation material has a three-dimensional macroscopic porous structure formed by a direct-writing 3D printing technology, and an included angle between a pore channel in the three-dimensional macroscopic porous structure and a normal of an evaporation surface is 90 degrees.

A heat collector includes a body including a hollow portion extending from a first end to a second end of the body and being a metal-extruded body having a light-receiving surface to receive sunlight, a pair of lids adjacent to the first end and the second end and covering the hollow portion, an inlet located in one of the pair of lids to allow a heating medium to enter the hollow portion, and an outlet located in one of the pair of lids to allow the heating medium to exit the hollow portion.

The invention discloses a solar low-heat-value heat storage heating system. According to the invention, through the AI prediction sub-module of the intelligent heat energy allocation module, the matching precision of energy supply and demand is significantly improved. The system can collect various data such as meteorological parameters, historical loads and heat storage states in real time, heat supply requirements, solar input fluctuation and heat storage efficiency are accurately pre-judged through feature extraction and multi-model prediction, and prediction results are continuously corrected through error calibration. The system can know how much heat is needed and how much solar energy can be provided in advance, so that energy flow in heat collection, heat storage and heat supply links is more reasonably allocated, the situation of heat waste or insufficient supply is reduced, the self-adaptive learning sub-module effectively strengthens the long-term operation capacity of the system, the system achieves self-learning, and the energy utilization rate of the system is improved. The operation stability is kept, the energy efficiency can be continuously optimized along with the external environment, more energy is saved after long-term use, and more convenience and rapidness are achieved.

The invention discloses a high-entropy nitride photothermal conversion film, a preparation method and an inverted solar evaporation water treatment device. The high-entropy nitride photothermal conversion film is composed of a high-entropy nitride coating, a transition layer and a substrate, the high-entropy nitride coating is (CrNbTiZrMo) Nx, and x ranges from 10 to 30; the thin film absorbs solar energy and efficiently converts the solar energy into heat energy, the heat energy is transmitted to hydrogel / aerogel to drive water to be efficiently evaporated, steam is collected from the bottom after being condensed, a traditional top light-transmitting cover plate is not needed, 30% of optical loss is reduced, the energy efficiency is improved to 85% (traditionally 58%), and the photo-thermal temperature of 70 DEG C can be achieved under irradiation of standard sunlight (AM 1.5 G). The temperature is far higher than that of other systems such as TiZrNbN (only 38.8 DEG C); the device adopting the film is simple in structure, easy to modularize and suitable for seawater desalination, high-salinity wastewater treatment and other scenes, and has the advantages of low energy consumption, environmental protection, low cost and the like.

The invention relates to a salt-resistant biomass interface evaporation material as well as a preparation method and application thereof, and relates to the technical field of interface evaporation materials. The preparation method comprises the following steps: mixing sunflower fiber dispersion liquid, polyvinyl alcohol and carbon-containing molybdenum disulfide, then adding glutaraldehyde, then carrying out liquid nitrogen freezing and freeze drying, sequentially soaking with a tannic acid solution, a calcium chloride solution and a ferric chloride solution, and then carrying out freeze drying. Natural sunflower fibers are used as a main framework, cotton is used as a supporting material, carbon-containing MoS2 is prepared and crosslinked with polyvinyl alcohol, a hydrophilic functional layer is constructed on the surface of the material through tannic acid, and the tannic acid is coordinated and complexed with Ca and Fe < + >, so that a more stable hydrophilic complexed coating is formed on the surface of the material; the surface wettability and the water conveying capacity of the material are further improved, meanwhile, salt crystal deposition and precipitation in the seawater evaporation process are effectively inhibited, and the oxidation resistance and the seawater corrosion resistance of the material are improved.

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 provides a photovoltaic photo-thermal coordinated utilization system, which comprises two modular integrated structures: a tubular assembly integrated system is composed of a plurality of tubular assemblies connected in parallel, and is sequentially provided with a packaging protection layer, a flexible semitransparent photovoltaic cell layer, a selectable spectrum selective functional layer, a heat collection tube and a heat collection medium from outside to inside; the stacked photovoltaic-heat collector system sequentially comprises a rigid semitransparent photovoltaic battery assembly layer, a supporting frame, a tubular heat collector array and the like from top to bottom. Through a spectrum gradient utilization mechanism, visible light is used for photovoltaic power generation, infrared light and ultraviolet light are used for photo-thermal collection, dynamic energy distribution is achieved in combination with a coordination control system, the comprehensive efficiency per unit area can be improved to 80% or above, and the system is suitable for multiple scenes such as household hot water and industrial heat supply and has high weather resistance and economical efficiency.

The invention discloses a solar spectrum frequency division combined heat and power generation system and an operation method, and relates to the technical field of renewable energy sources, and the method comprises the following steps: S001, building a coupling analysis baseline among irradiation parameters, heat distribution and optical characteristics, collecting the real-time temperature data and light beam wavefront information of a spectrum frequency divider under the condition of sun illumination, and calculating the real-time temperature data and light beam wavefront information of the spectrum frequency divider; and generating an estimated atlas of refractive index gradient distribution based on a thermally induced refractive index change rule. Through heat, light and force coupling control, accurate prediction, real-time identification and dynamic correction of the thermal lens effect are achieved, a closed-loop feedback mechanism is established, stable alignment of photoelectric and photo-thermal paths is guaranteed, the system energy efficiency and operation reliability are effectively improved, and the problems of deviation, energy efficiency reduction and part damage caused by a thermal lens in the prior art are solved.

The invention relates to a bifunctional intercalation Ti3C2Tx composite photo-thermal material, an interface evaporator, a preparation method and application, PVDF is added into DMF for ultrasonic dispersion, then a Ti3C2Tx / carbon / cobalt composite photo-thermal material is added and continuously stirred until the Ti3C2Tx / carbon / cobalt composite photo-thermal material is uniformly dispersed, the obtained mixture stands, and bubbles are discharged; transferring the obtained black mixture into a glass culture dish, adding distilled water to immerse the black mixture to induce solidification, and forming a black blocky solid material; and after standing, soaking in distilled water, and forming the three-dimensional photo-thermal interface evaporator through a solvent exchange (DMF-water) process. An interface evaporator based on the Ti3C2Tx composite photo-thermal material has the evaporation rate of 2.00 kg.m <-2 >. H <-1 >, a photo-thermal runway prepared from the bifunctional intercalation Ti3C2Tx composite material shows excellent photo-thermal conversion efficiency, and snow can be rapidly melted and the surface of the runway can be dried under the simulation condition; the method has practical application value in solving the problems of water resource shortage and runway potential safety hazards.

The invention discloses a preparation method of salt crystallization prevention aerogel with a vertical microchannel structure. The preparation method comprises the following steps: step 1, preparing a PPy-PDA composite photo-thermal material; step 2, preparing a PVA / HPC solution; step 3, preparation of a PVA / HPC coated PPy-PDA precursor solution; and step 4, preparing the PVA / HPC coated PPy-PDA composite aerogel with the vertical micro-channel structure. The salt crystallization prevention aerogel with a vertical micro-channel structure is prepared by utilizing a directional freezing and chemical cross-linking technology, the salt crystallization prevention aerogel has excellent photo-thermal response capability and energy conversion efficiency, and the vertically arranged micro-channel structure can promote rapid directional transportation of moisture and salt ions and inhibit salt accumulation and crystallization; meanwhile, the chemical crosslinking strategy enhances the mechanical stability and durability of the gel network. The preparation process is controllable, and the material is green and environment-friendly and can be applied to the field of solar interface evaporation desalination of high-salinity wastewater.

This invention provides a flexible solar evaporator with a vertical perforation structure, its preparation method, and its application. The preparation method of the flexible solar evaporator includes constructing a polyurethane / carbon black composite system using polyurethane as a flexible matrix and carbon black as a photothermal conversion material. Ice crystals are directionally grown to form a vertical ice crystal structure through directional freezing. After drying, the ice crystals are removed to obtain a flexible solar evaporator with a vertical through-hole structure. The flexible solar evaporator provided by this invention utilizes the excellent elasticity and mechanical stability of the polyurethane matrix, making it less prone to damage. Combined with carbon black as a photothermal conversion material to construct a composite structure, the polyurethane matrix encapsulates the carbon black during construction, forming a tightly bonded continuous phase. This retains the flexible characteristics of the evaporator while enhancing its structural strength, preventing flaking and damage caused by external impacts or water erosion during use.

The utility model provides a solar heat collection device, and belongs to the technical field of heat collection devices. A solar heat collection device comprises a frame body, a solar heat collection device and a solar heat collection device, the copper pipe is fixedly connected to the support, and the two ends of the copper pipe extend out of the frame body; the heat insulation cotton is fixed in the frame body, a containing groove matched with the copper pipe is formed in the heat insulation cotton, and the containing groove penetrates through the heat insulation cotton so that the two sides of the heat insulation cotton can make contact with the copper pipe; the two heat absorption plates are fixed to the two sides of the heat insulation cotton respectively and make contact with the copper pipe; and the two transparent cover plates are fixed on the frame body, and the two transparent cover plates are respectively distributed on the outer sides of the two heat absorbing plates.

The invention discloses a square tube collector type photovoltaic photo-thermal process system for rinsing forgings, relates to the technical field of solar photovoltaic photo-thermal application, aims to solve the problem of energy utilization, and comprises a photovoltaic system, a heat exchange system, a heat storage water tank and a rinsing process water tank, the heat storage water tank exchanges heat with the rinsing process water tank through the heat exchange system, the heat storage water tank is connected with the photovoltaic system through a pipeline for heat exchange, and the photovoltaic system supplies power to electric equipment in the heat exchange system, the heat storage water tank and the plate heat exchanger. Photovoltaic power generation and photo-thermal utilization are combined, the PV / T heat collector absorbs heat on the back face of the photovoltaic panel through the rectangular pipeline while generating power, water in the heat storage water pool is heated, the comprehensive utilization rate of solar energy is increased, and energy waste is reduced.

There is provided a photothermal material, comprising a plurality of layers of two-dimensional phyllosilicate intercalated with a liquid metal. In a particular embodiment, the phyllosilicate is mica and the liquid metal is gallium.

The utility model discloses a medium-temperature solar heat collection plate core and a medium-temperature heat collector. The plate core comprises a medium header pipe, a heat collecting wing plate is arranged on the side portion of the medium header pipe, heat collecting blue films are arranged on the upper surfaces of the medium header pipe and the heat collecting wing plate, flow dividing holes are formed in the inlet end and the outlet end of the medium header pipe, a flow dividing cavity in the pipe direction is formed in the heat collecting wing plate, and the flow dividing holes in the two ends communicate with the two ends of the flow dividing cavity correspondingly. The medium header pipe is internally provided with a flow blocking structure which is backward relative to the flow dividing holes in the inlet end in the flow direction. The heat collector further comprises the medium-temperature solar heat collection plate core. The solar heat collector has the beneficial effects that medium fluid in the medium header pipe is shunted into the shunting cavity, and a medium in the shunting cavity is in direct contact with the heat collection wing plate, so that the contact area of the medium and the heat collection wing plate is increased; the machining and manufacturing mode is optimized, and the overall manufacturing cost is reduced; the medium header pipe and the heat collection wing plates are coated with heat collection blue films, and the solar photo-thermal conversion efficiency can be effectively improved.

A Fresnel spot lens desalinization system includes a Fresnel spot lens (FSL) disposed above a heating element. The heating element has a collector plate and a rod portion; The FSL concentrates solar energy onto the collector plate. A condenser vessel is connected to the collector plate. The rod portion extends into the condenser vessel having a heat resistant exterior shell. The rod portion projects interiorly of the condenser vessel at a downward angle and includes a top portion that is connected to a flat head of the heating element. The flat head receives the solar energy generated from FSL The concentrated solar energy increases the temperature of the heating element inside the condenser vessel to vaporize the salt water to steam and transfer the steam into a condensing tube to condense the steam into pure water.

The present disclosure provides an energy collection heat insulation composite film, a preparation method thereof, and heat insulation glass. The energy collection heat insulation composite film comprises a heat insulation layer, an infrared reflection film, a thermoelectric conversion layer, and an ultraviolet absorption film. The infrared reflection film is arranged on the heat insulation layer, the thermoelectric conversion layer is arranged on the side of the infrared reflection film away from the heat insulation layer, and the ultraviolet absorption film is arranged on the side of the thermoelectric conversion layer away from the infrared reflection film. The material of the infrared reflection film comprises a material capable of reflecting infrared rays. The material of the ultraviolet absorption film comprises a material capable of absorbing ultraviolet rays. The energy collection heat insulation composite film can not only consume heat to avoid long-term accumulation of heat in the energy collection heat insulation composite film, but also realize recycling of heat energy.

The solar thermodynamic generator includes a quartz window placed on a metal shell to form an electromagnetic resonant cavity for receiving solar energy, a ceramic conduit placed within the metal shell, where a working medium is heated by solar energy within the ceramic conduit, a heat exchanger placed within a vacuum insulated oil tank, a steam generator placed within the vacuum insulated oil tank, a ceramic heating tube placed within a combustion chamber, and a turbine communicating with the steam generator through fifth and sixth pipelines. The present invention is environmentally friendly, safe, low-cost, highly efficient, zero-pollution, zero-emission, and unaffected by weather or environmental factors. Like natural gas, the present invention can be configured to generate electricity on a grid. Furthermore, after hydrogen fuel and hydrogen-silicon fuel are mixed and combusted, the waste hydrogen can be recycled and reused.

A heat exchanger assembly (8) includes an absorber element (60) defining an axial flowpath (62) for a fluid extending along an axis (20). The absorber element (60) includes an outer support wall (182) and one or more support members (184) extending radially inward from the outer support wall (182) with respect to the axis (20). The heat exchanger assembly (8) also includes one or more heat exchange elements (188) floatably coupled to the one or more support members (184) where the one or more heat exchange elements (188) extend along the axial flowpath.

The utility model discloses a photovoltaic panel with a heat energy recovery device, which comprises a photovoltaic panel body, a heat collection panel and an abutting plate, the heat collection panel is arranged at the rear end of the photovoltaic panel body, and the abutting plate is used for abutting and fixing the heat collection panel at the rear end of the photovoltaic panel body; and the multiple adjusting mechanisms are evenly installed at the rear end of the abutting plate, and the multiple adjusting mechanisms are movably installed in corresponding adjusting grooves formed in the protection plate. A movable abutting plate is installed at the rear end of a heat collection plate on a photovoltaic panel body so that the abutting plate can be connected with a plurality of adjusting mechanisms, when the heat collection plate expands in the heat energy recovery process, a plurality of moving rods connected to the rear end of the abutting plate are pushed to move along corresponding adjusting grooves, and then abutting elastic piece metal springs are compressed; therefore, the abutting plate always pushes the heat collection plate to abut against the photovoltaic panel, the heat energy recovery efficiency cannot be affected due to expansion, and the photovoltaic heat energy recovery efficiency is improved.

Systems related to concentrated solar combination heating and power generation; solar heating; industrial heat driven power generation; thermal storage systems and heat exchanger and power generation systems therefore, including any of the above with optional supplemental fuel production, and associated methods, are generally described.

The application provides a solar panel heat exchanger and a heat exchange method thereof. The solar panel heat exchanger comprises a shell with an inner cavity, a bottom plate sealed to one side of the shell, cold fluid channels and hot fluid channels arranged in the inner cavity, a glass cover plate arranged on the other side of the shell, and a heat absorption plate arranged in the inner cavity. An air layer is formed in the interlayer between the glass cover plate and the heat absorption plate. The cold fluid channels and the hot fluid channels are arranged in the direction from the air layer to the bottom plate in sequence. A plurality of baffles are arranged in the cold fluid channels to form meandering channels. A plurality of baffles are arranged in the hot fluid channels to form meandering channels. The meandering channels in the cold fluid channels have the same trend as the meandering channels in the hot fluid channels. The application can make full use of solar energy, form a double heat source heat exchange structure together with the hot fluid channels, and improve the heat exchange efficiency of the panel heat exchanger.

The solar thermal power generation system includes a thermal energy storage container containing a thermal mass composition capable of storing thermal energy, a solar energy collection system, and a power generation system. The collection system comprises a first closed-flow loop including a solar thermal collector that absorbs solar energy to heat a first working fluid. The heated first working fluid is recirculated through the first closed-flow loop to heat the thermal mass composition. The power generation system consists of a second closed-flow loop including a turbine generator. The second closed-flow loop recirculates the second working fluid through the thermal mass composition, absorbing thermal energy to heat the second working fluid, which is then fed to a turbine to generate electricity in the generator. The second working fluid is water / steam or a compressible gas. The thermal mass composition consists of a mixture of a phase-change material, such as a salt, and a metallic material.

Provided is a solar energy utilization system capable of efficiently utilizing solar energy by the synergistic effect of a solar cell and a solar water heater. This solar energy utilization system is provided with: a perovskite solar cell unit (12) for converting light energy of sunlight into electric energy; a heat collection plate (14) for a solar water heater, which is provided below the perovskite solar cell unit (12), and which collects heat generated by the sunlight that has passed through the perovskite solar cell unit (12); a case (20) for housing the perovskite solar cell unit (12) and the heat collection plate (14) for the solar water heater; a tempered glass part (16) which is provided inside the case (20) and on which the perovskite solar cell part (12) is placed; and a flow path part (18) which is provided inside the housing (20), is in contact with the heat collection plate (14) for the solar water heater, and causes a fluid to flow so as to exchange heat collected by the heat collection plate (14) for the solar water heater.

Ceramic particles for use in a solar power tower and methods for making and using the ceramic particles are disclosed. The ceramic particle can include a sintered ceramic material formed from a mixture of a ceramic raw material and a darkening component comprising MnO as Mn2+. The ceramic particle can have a size from about 8 mesh to about 170 mesh and a density of less than 4 g / cc.

The utility model relates to the technical field of solar heat collecting pipes, and discloses a heat pipe with built-in phase change liquid and a solar heat collecting pipe, which comprise a mounting disc, a solar heat collecting outer pipe is arranged on the right side of the mounting disc, a vacuum nozzle is arranged on the upper side of the outer part of the solar heat collecting outer pipe, and a fin ring is arranged on the outer part of the solar heat collecting outer pipe; and the phase change liquid inner heat pipe is inserted into the solar heat collection outer pipe, and a spiral cavity is formed in the outer portion of the phase change liquid inner heat pipe. According to the heat pipe internally provided with the phase change liquid and the solar heat collecting pipe, the spiral cavity is additionally arranged outside the phase change liquid inner heat pipe, so that the contact area between the phase change liquid inner heat pipe and the outside can be increased, the phase change liquid inner heat pipe can exchange heat with the surrounding environment more sufficiently, and the heat exchange efficiency is improved; and the fin ring additionally arranged outside the solar heat collection outer tube can increase the surface area of the heat collection outer tube, so that the solar energy absorption capacity of the heat collection tube is improved, and the heat collection efficiency of the solar heat collection tube is improved.

According to the present invention, a light-absorbing and heat-storing film is characterized by comprising a metal layer including a protrusion-and-recess-shaped object, wherein the average height of the protrusion-and-recess-shaped object is 100 nm to 1,000 nm.

A solar absorber module, manufactured as a single-piece molded plastic component, comprises a central area (1) with two spaced-apart wall surfaces (4, 5) defining a flow space and two opposing edge areas (2, 3) enclosing the central area (1), each with a collector (8) in the form of a channel communicating with the flow space. Each of the two channels terminates in two first connection ports (12) oriented essentially parallel to the length of the respective channel. Two second connection ports (13) branch off from each channel, oriented essentially perpendicular to the length of the respective channel.The edge regions (2, 3) adjacent to the branches (14) of the second connecting stubs (13) are cranked with a crank angle between 0.5 and 1.1 times the diameter of the respective channel (9) such that the transition from the respective channel to the respective second connecting stubs (13) is recessed towards the central region (1) compared to the wall of the respective channel facing away from the central region (1) between the two crank angles (15). Furthermore, in the area of ​​the crank angle (15) at the transition from the central region (1) to the respective channel (9), there is at least one connecting area (7c) that connects the two wall surfaces (4, 5) to each other.

A solar power generation system includes a thermal energy storage vessel containing a thermal mass composition operable to store thermal energy, solar energy collection system, and power generation system. The collection system comprises a first closed flow loop including a solar collector which absorbs solar energy and heats a first working fluid. The heated first working fluid recirculates through a first closed flow loop through and heats the thermal mass composition. The generation system comprises a second closed flow loop including a turbine-generator. The second closed flow loop recirculates a second working fluid through the thermal mass composition to absorb thermal energy and heat the second working fluid which flows to the turbine and the generator produces electricity. The second working fluid may be water / steam or a compressible gas. The thermal mass composition comprises a mixture of a phase change material such as salt and a metallic material.

The invention discloses a preparation method of a full-spectrum photothermal conversion eutectic material and application of the full-spectrum photothermal conversion eutectic material in water purification. The preparation method comprises the following steps: mixing an electron donor and an electron acceptor, adding dichloromethane, performing ultrasonic dissolution, adding ethanol, and continuously performing ultrasonic uniform mixing; finally, after the solvent is volatilized at room temperature, crystals are separated out, and the eutectic material is obtained. The electron donor is tetramethyl p-phenylenediamine and / or tetramethyl biphenyl diamine; and the electron acceptor is one or more of tetracyanobenzene, chloranil and tetrabromobenzoquinone. By gradually adjusting the electron donor-acceptor structure, the band gap structure of the eutectic is changed, and the light absorption range of the eutectic is gradually expanded to a near-infrared second region. The eutectic material provided by the invention has photo-thermal conversion performance of a near-infrared first zone and a near-infrared second zone, the highest temperature can reach 178 DEG C, and the photo-thermal conversion efficiency can reach 87.5%. Eutectic is loaded on the non-woven fabric to serve as a heat source, and water evaporation and purification can be achieved through a xenon lamp or sunlight irradiation.