2006results about "Solar-rays concentration" patented technology

The present invention relates to a method and apparatus for calculating and evaluating the loss of light collection efficiency of a heliostat. 【Solution means】The present invention simulates the pulsating wind load distribution of a heliostat at different elevation-azimuth angles by CFD calculation, extracts the aerodynamic admittance function and shape parameters, constructs a pulsating wind load spectrum prediction model, calculates the pulsating wind load spectrum by combining the attitude parameters of the heliostat, applies the pulsating wind load spectrum to the structural model of the heliostat mirror by finite element analysis, obtains the instantaneous dynamic response, displacement and strain distribution characteristics of the heliostat, simulates the influence of mirror deformation on the light reflection path, quantifies the instantaneous influence on the light collection efficiency of the deformed mirror, and generates a dynamic curve of the change of light collection efficiency over time.

The invention provides a solar frequency division PV / T system coupled with a micro-nano film and a cavity type heat collector. The solar frequency division PV / T system comprises a linear Fresnel lens and the cavity type solar heat collector. A lighting window is formed in the heat collector in the axis direction, a micro-nano frequency division film is arranged on the inner wall face, right facing the lighting window, of a heat absorption cavity, and a concentrating photovoltaic cell is arranged below the micro-nano frequency division film. Sunlight is concentrated to the lighting window through the linear Fresnel lens at the top, is secondarily reflected by the lighting window to be collected to the cylindrical heat absorption cavity of the heat collector and irradiates the micro-nano film at the bottom, the micro-nano film transmits available wave bands in solar spectrum to the photovoltaic cell for power generation, light of other wave bands is reflected to the inner wall face of the heat absorption cavity, and the light of the other wave bands is reflected to the inner wall face of the heat absorption cavity. The heat is absorbed by the heat absorption coating, converted into heat energy and transmitted to the working medium layer, so that gradient utilization of the full spectrum of the sun is realized. The cavity type heat collector structure can effectively reduce energy dissipation caused by radiation and convective heat transfer, and the solar energy utilization efficiency of the system is improved.

Methods and systems for separating a first metal from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.

The utility model discloses a solar heat collector, which relates to the technical field of solar thermal power generation and comprises a condenser component and a heat collecting tube. The condenser assembly comprises a first condenser, a second condenser and a third condenser, the first condenser comprises a supporting piece and a first reflection assembly rotationally arranged on the supporting piece, the first reflection assembly rotates around the rotating center of the first condenser, and the second condenser and the third condenser are connected with the first reflection assembly. The condensation center of the third condenser coincides with the rotation center of the first reflection assembly. The heat collecting pipe is arranged at the rotating center position of the first reflection assembly. According to the solar heat collector provided by the invention, high-power light condensation is realized by adopting a multi-reflection light condensation mode, and the optical efficiency and the heat collection efficiency of the solar heat collector are improved. Meanwhile, the heat collecting pipe is placed at the rotating center position of the first condenser, the effect that the heat collecting pipe does not rotate can be achieved, and therefore the problem of liquid leakage of a rotating connector of the heat collecting pipe is solved.

The invention relates to the technical field of solar power generation, in particular to a photovoltaic and photo-thermal coupling system and a preparation method and application thereof.The photovoltaic and photo-thermal coupling system comprises a semitransparent photovoltaic cell, a photo-thermal reflector, a photo-thermal heat collection unit and a coupling support; the semitransparent photovoltaic cell is fixedly arranged above the photo-thermal reflecting mirror through the coupling support, and the photo-thermal heat collection unit is arranged above the semitransparent photovoltaic cell and is connected with the photo-thermal reflecting mirror through the coupling support. According to the photovoltaic and photo-thermal coupling system, the advantages of photovoltaic power generation and photo-thermal conversion are combined, the utilization efficiency of solar energy is remarkably improved, and multifunctional integration is achieved.

The invention relates to the field of heliostat calibration, and discloses a scheduling method for calibrating heliostats through cooperation of artificial light sources and cameras in a large-scale heliostat field, and the method comprises the following steps: determining the heliostat range covered by each camera, determining the heliostat range covered by each artificial light source, and determining the heliostat range covered by each camera; the method comprises the following steps: determining the center and size of a light spot in an image shot by a camera when the heliostats are calibrated, determining the heliostats which can be calibrated in the coverage range of each artificial light source-camera combination, regarding each effective calibration combination as a node to construct an undirected graph, dividing the nodes into a plurality of groups through a graph grouping algorithm, and ensuring that the nodes in the same group are not connected with each other, therefore, all combinations in the same group can execute calibration in parallel. According to the method disclosed by the invention, the problem of affiliation misjudgment caused by light spot interference between heliostats is solved, possible shadow and shielding problems are avoided, dynamic scheduling of the artificial light source and the camera is realized, and invalid operation time is shortened.

A hybrid power generation system in one embodiment comprises a green boiler containing a thermal mass composition operable to store thermal energy, a solar energy collection system which absorbs solar energy to heat a first working fluid and in turn the thermal mass composition, and a power generation system comprising a steam turbine coupled to an electric generator to produce electricity and a nuclear steam supply system which convert a second working fluid comprising water from liquid to steam. Steam output by the nuclear steam supply system flows through the green boiler and is heated by absorbing heat from the thermal mass composition to increase the enthalpy of the steam and concomitantly electric power output from the turbine-generator. The nuclear steam supply system and green boiler may be retrofit to replace existing fossil fuel steam generation systems while retaining the energy conversion part of the fossil power plant.

The invention relates to the technical field of energy, in particular to a solar coupling hydrocarbon fuel reforming low-carbon oil displacement system which comprises a solar collecting lens, a gasification cavity, a reaction cavity, a solar heat collector, a condensation cavity, a hydrogen separation assembly and a catalyst. The solar collecting lens is arranged on one side of the solar heat collector; the gasification cavity and the reaction cavity are arranged in the solar heat collector; a hydrogen separation assembly and a catalyst are arranged in the reaction cavity, the gasification cavity is used for gasifying input excessive liquid water and hydrocarbon fuel to obtain gaseous hydrocarbon fuel and excessive water vapor, the gaseous hydrocarbon fuel and the excessive water vapor are subjected to a water vapor reforming reaction under the action of the catalyst, and generated hydrogen is discharged through the hydrogen separation assembly; the remaining carbon dioxide and water vapor are conveyed into a gas injection well to conduct oil displacement on an oil field; the condensation cavity is connected with the mining well. The efficient and environment-friendly device based on hydrocarbon fuel wet reforming directly heats and displaces oil by recovering hydrogen and residual reaction products, so that the energy utilization rate is increased, and carbon dioxide is recovered.

The utility model relates to a bonding sheet of a high-precision heliostat reflecting surface supporting assembly, which comprises a bonding sheet main body, a clamping mechanism is arranged on the lower side of the bonding sheet main body, the clamping mechanism comprises a hollow inserting rod, a rotating shaft, a tooth column and four clamping blocks, the rotating shaft is rotatably arranged on one side of the inner wall of the rotating shaft, and the tooth column is arranged on the other side of the rotating shaft. The tooth column is fixedly installed at one end of the rotating shaft, four clamping grooves are formed in the circumferential side of the hollow inserting rod, the clamping blocks are installed in the clamping grooves in a sliding mode, and a tooth plate is fixedly installed on one side of each clamping block and engaged with the tooth column. By means of the clamping mechanism, when the bonding sheet is installed on the supporting assembly, a worker can conveniently and rapidly install the bonding sheet on the supporting assembly, the subsequent worker can conveniently disassemble the bonding sheet, and therefore the using convenience of the bonding sheet is improved.

The invention discloses a method for improving photo-thermal conversion efficiency of a photo-thermal material under large-range light intensity, the photo-thermal material and a solar heat collector, and belongs to the field of solar evaporation water treatment. According to the technical scheme, the method comprises the steps that polyaniline particle-loaded carbon aerogel is prepared, the light intensity range is greatly widened to 10 sunlight intensities or above through a Fresnel lens, the corresponding relation between the material surface water evaporation rate and the temperature change is established, and the energy loss is reduced to the maximum extent by adding a foam side heat insulation layer; and the water evaporation rate of the photo-thermal material is improved. The method is applied to the aspect of solar water evaporation, and the problem that the water evaporation rate is low in an existing solar evaporation method is solved.

The utility model discloses a photo-thermal control system, which relates to the technical field of solar photo-thermal, and comprises a heat absorber and a mirror field, the outer surface of the heat absorber is divided into a plurality of temperature areas, the mirror field comprises a plurality of acquisition areas in one-to-one correspondence with the plurality of temperature areas, the plurality of acquisition areas are arranged around the heat absorber, and the temperature areas of the plurality of acquisition areas are in one-to-one correspondence with the plurality of temperature areas. The acquisition area comprises a plurality of heliostats; when the temperature of the temperature area exceeds a threshold value, the orientation of the mirror surface of the heliostat can be changed, and when the temperature of the temperature area exceeds the threshold value, the orientation of the mirror surface of the heliostat in the collection area corresponding to the temperature area rotates relative to the heat absorber, so that heat reflected to the heat absorber by the corresponding heliostat is reduced. The heat absorber has the advantages of being simple in structure and even in temperature distribution.

The invention discloses a photovoltaic photo-thermal energy storage multi-element coupled all-weather self-adaptive building energy system and method, and belongs to the crossing field of solar comprehensive utilization and building energy saving. The system integrates a Fresnel lens, a frequency division film, a photovoltaic power generation unit, a thermoelectric power generation unit and a multi-temperature-zone phase change energy storage device, and the surface of the photovoltaic and thermoelectric unit is covered with an aerogel heat collection and insulation layer. Sunlight is focused by a Fresnel lens and then is separated into short-wave light and long-wave light by a frequency division film, and power generation waste heat is stored in a cascade mode through a phase change energy storage device; the intelligent control unit switches a heat supply season mode or a cold supply season mode according to seasons and energy consumption requirements. The system improves the solar spectrum utilization rate, achieves all-weather self-adaptive supply of electricity and heat of the building, is compact in structure, low-carbon and efficient, and is suitable for various building energy scenes.

The invention discloses a valley electrochemical heat storage and energy supply system based on photo-thermal coupling, and relates to the technical field of energy storage and supply, and the system comprises a photo-thermal module, an electrochemical energy storage module, an intelligent control module and a heat exchange and energy supply module. Efficient conversion and intelligent complementation of energy are achieved, the photo-thermal module can efficiently collect solar energy and convert the solar energy into heat energy to be stored, a stable heat source is provided for the electrochemical energy storage module, electrochemical reaction is assisted, the energy storage efficiency is improved, and meanwhile the intelligent control module controls the intelligent control module according to the temperature state and the electric energy requirement of the electrochemical energy storage module. The heat output and light condensation parameters of the photo-thermal module are dynamically adjusted, intelligent distribution and adjustment of energy are achieved, and due to the synergistic effect, the utilization efficiency of the energy is improved, and the stability and reliability of the system are enhanced.

The invention relates to the technical field of solar photo-thermal utilization, in particular to a secondary reflection center receiver concentrating solar heat collection system and a design method thereof. The system is composed of a heliostat field composed of a plurality of heliostats which are symmetrically or approximately symmetrically arranged, an inclined plane secondary reflector installed on a high tower and a receiver which is obliquely installed close to the ground. Each heliostat is accurately controlled through a tracking system, and sunlight is reflected and focused to a common focus located at the high position of the right south of a heliostat field. Afterwards, the light rays are further reflected by the secondary reflector and guided to the receiver, and efficient light energy collection and heat energy conversion are achieved. Through accurate tracking and focusing of the heliostat and the guiding effect of the secondary reflector, the system can efficiently gather sunlight to the receiver, and the light energy collection efficiency is improved. The heliostat field is arranged symmetrically or approximately symmetrically, so that the heliostat field is attractive, shadow shielding can be effectively reduced, and the overall condensation effect is improved.

A solar collector that comprises a conduit for a working fluid, and a parabolic trough reflector arranged to focus reflected sunlight onto the conduit. The parabolic trough reflector is arranged to pivot around the conduit.

A concentrated solar power storage system and method convert water into water vapor by the solar thermal energy, and the water vapor further operates a hydroelectric power generation system with a water storage (or an energy storage capsule) through a repeated conversion process.

The solar energy concentrator and collector system consists of a) longitudinal sheets, plates or bands of transparent plastic, carrying linear Fresnel lenses, b) longitudinal sheets, plates or bands of transparent plastic, carrying mirrors. Fresnel type or formed by multiple mini or linear reflective micro-mirrors integrated into them, b) sheets, plates or arched bands that carry multiple lenses or mini-lenses of cylinder segment section, c) mirrors arranged in a Fresnel type shape, d) of V-shaped mirrors, e) semi-parabolic mirrors of) plastic lenses filled with liquid, supported peripherally by cables, poles or a frame, which concentrate the solar rays in an equally longitudinal focus or duct, with a flattened ovoid or rectangular section. of large surface that carries a fluid, which when it is water evaporates, driving a turbine and goes to a generator.

The embodiment of the present invention provides a tower solar molten salt absorber protection control method, system and storage medium, which belongs to the technical field of solar thermal power stations. The method includes: obtaining meteorological forecast data and tower solar thermal power station system operating parameters; using the principle of balancing the power consumption of the cycle condition and the power consumption of the salt withdrawal and restart, and calculating the maximum cycle time according to the tower solar thermal power station system operating parameters; determining the operating condition of the tower solar thermal power station system when cloud shading occurs according to the meteorological forecast data and the maximum cycle time; and controlling the operation of the tower solar thermal power station system according to the operating condition. The method determines the maximum cycle time by using the principle of balancing the power consumption of the cycle condition and the power consumption of the salt withdrawal and restart, and then determines the operating condition of the tower solar thermal power station system when cloud shading occurs according to the maximum cycle time and the expected cloud shading time, which can reduce the number of starts and stops of the tower solar thermal power station system while maximally saving energy consumption.

The invention relates to an external field intelligent regulation and control photocatalytic hydrogen production integrated device and system. The device comprises a Fresnel lens; the double-layer vacuum glass tube comprises an outer-layer glass tube, an inner-layer glass tube and a vacuum layer located between the outer-layer glass tube and the inner-layer glass tube, and the inner-layer glass tube is connected with an external water source and the separation module; the Helmholtz coil comprises two conductor coils, and the two conductor coils are symmetrically arranged at the two ends of the outer-layer glass tube in a sleeving mode and are communicated with an external power source; the photocatalyst is arranged in the inner-layer glass tube and is positioned at a strip-shaped light band of the sunlight focused by the Fresnel lens; the separation module comprises a hydrogen separation membrane and a gas outlet and is used for efficiently separating gas generated by reaction; the Fresnel lens is connected with the double-layer vacuum glass tube through the fixing support and located on the upper side of the double-layer vacuum glass tube. The Helmholtz coil is used for generating a magnetic field to improve the photo-generated charge separation efficiency in the photocatalytic reaction process, so that the hydrogen production efficiency is improved. The efficiency of photocatalytic reaction hydrogen production can be improved through precise regulation and control of an external field.

Omnivorous solar thermal thrusters and adjustable cooling structures are disclosed. In one aspect, a solar thermal rocket engine includes a solar thermal thruster configured to receive solar energy and one or more propellants, and heat the one or more propellants using the solar energy to generate thrust. The solar thermal thruster is further configured to use a plurality of different propellant types, either singly or in combination simultaneously. The solar thermal thruster is further configured to use the one or more propellants in both liquid and gaseous states. Related structures can include valves and variable-geometry cooling channels in thermal contact with a thruster wall.

The invention discloses a loop heat pipe and water heat storage coupling system and a working method, and belongs to the technical field of heat storage. The system has the modes of light gathering of the light-following trough heat collector, heat conduction of the loop heat pipe, heat storage of the water storage tank and warm water irrigation by using the stored heat water. When sunlight is sufficient in the daytime, the system converts solar energy into sensible heat of water in the heat storage water tank and stores the sensible heat, and the sensible heat is insulated by soil to slow down heat loss; when plants need to be irrigated, warm water in the irrigation water tank is used for irrigation; at night or in the absence of illumination, warm water in the heat storage water tank exchanges heat with air in the greenhouse, so that a lasting and stable heat supply source is provided for the greenhouse. Solar energy collected by the heat collecting groove is efficiently transmitted into the water tank through the loop heat pipe driven by temperature difference to be converted into sensible heat of water to be stored, the sensible heat is used for increasing the greenhouse temperature and irrigating plants when heat is needed at night, and the purposes of efficiently storing heat in the daytime and continuously supplying heat at night are integrally achieved.

The invention discloses a tower type solar condensation and heat absorption system based on a novel cavity type absorber. The tower type solar condensation and heat absorption system is composed of a condensation mirror field and an absorption tower. The absorption tower comprises two cavity absorbers which are arranged up and down and have the same structure. According to the cavity type absorber, an internal heat absorption pipe set is arranged in a cylindrical heat preservation cavity, and the inner wall face of the heat preservation cavity is coated with a heat absorption coating. The two heat absorbers are provided with lighting openings in one side of the heat preservation cavity, the directions of the lighting openings of the two heat absorbers are opposite, the sides, provided with the lighting openings, of the two heat absorbers serve as the light facing sides of the two heat absorbers respectively, and sunlight converged by mirror fields of the light facing sides of the two heat absorbers is obtained respectively. The heat absorber is provided with an exposed heat-absorbing pipe group on the outer wall surface of the heat-insulating cavity on the light-facing side; the heat absorption medium firstly exchanges heat through the external heat absorption pipe set on the light facing side, and then further absorbs heat through the heat absorption pipe set in the heat preservation cavity. Sunlight is reflected and converged to the light facing sides of the corresponding absorbers through the mirror fields on the two sides of the absorption tower, so that the area of the mirror fields is enlarged, and the field is more fully utilized.

The invention belongs to the technical field of solar photo-thermal power generation, and discloses a tower type solar power generation system based on lunar soil particle moving bed heat exchange, which utilizes local materials of lunar soil to prepare solid heat storage particles as a heat transfer and heat storage medium, greatly reduces the mass and volume of the system and the cost and risk of transporting materials from the earth, and improves the energy efficiency. The efficient particle moving bed heat exchanger combining the particle receiver and the heat collector utilizes direct efficient contact heat exchange between solid particles and between the particles and a heat exchange working medium, has the characteristics of high heat exchange efficiency, small heat loss and compact structure, and is particularly suitable for space vacuum and microgravity environments; it is ensured that heat is reliably and stably transmitted to the Brayton cycle power generation system from concentrated solar energy, and power is generated through the Brayton cycle power generation system.

Methods and systems for separating a first metal from a metal-containing feed stream are provided. The method can include applying solar energy, for example, by focusing one or more mirrors in one or more heliostats, to heat a metal-containing feed stream in a heating zone to a first temperature to produce a first vapor including the first metal. The first vapor can be condensed in a condensation zone to produce a first liquid including the first metal, and the first liquid can be collected. The system can include a separation unit include a heating zone in fluid communication with a condensation zone and a means for applying solar energy to heat a metal-containing feed stream disposed in the heating zone.

Exemplary embodiments described herein may include lightweight, low stow volume solar concentrator.

An energy harnessing system comprising a solar collector, a solar-energy heat circulation system, a heat engine, and a refrigerant circulation system. The solar-energy heat circulation system includes a first heat exchanger 11 associated with the solar collector and communicated with at least two second heat exchangers 18a, 18b, 18c, 18d. The heat engine has at least two carbon-dioxide-sublimation-and-deposition chambers 17a, 17b, 17c, 17d, a turbine 30, and an expansion chamber 32. Each carbon-dioxide-sublimation-and-deposition chamber 17a, 17b, 17c, 17d contains one of the second heat exchangers 18a, 18b, 18c, 18d. The refrigerant circulation system is configured to cool the expansion chamber 32 and each sublimation-and-deposition chamber 17a, 17b, 17c, 17d.

The invention provides an electro / thermochemical gradient hydrogen production system and method for solar radiation energy grading and residual light energy thermal complementary coupling. The system comprises a light condensation assembly; the frequency division assembly is used for grading solar spectrum radiation; a photovoltaic cell power generation device; the methane oxygen-enriched combustion high-temperature photovoltaic power generation device is used for realizing oxygen-enriched combustion of natural gas by utilizing residual heat heat energy and generating power by utilizing radiation energy generated by high-temperature flue gas generated after combustion; the solid oxide electrolytic tank device is used for pushing solid oxide to electrolyze water to produce hydrogen by utilizing heat energy and electric energy contained in the high-temperature flue gas step by step; and the thermal chemical reaction device is used for promoting each step of thermal chemical reaction by utilizing heat energy and electric energy contained in the high-temperature flue gas step by step. The energy source of the system is solar radiation and natural gas, hydrogen and electricity are produced, the system utilizes different energy conversion modes to achieve temperature gradient ordered conversion and utilization of residual light energy after solar frequency division, and complementary coupling of different qualities is achieved on the basis of energy gradient conversion.

The invention relates to the technical field of photovoltaic cooling hydrogen production, and particularly provides a multi-source synergistic spray cooling concentrating frequency division photovoltaic hydrogen production system and a regulation and control method. Accurate separation of solar spectrums is achieved through jacketed pipe frequency division and a reaction pipe, visible light wave bands are converted into electric energy through a photovoltaic module, infrared wave bands are subjected to photo-thermal conversion through a catalytic reaction pipe, surplus heat energy is directly used for the activation process of hydrogen production through water electrolysis, and gradient utilization of solar energy is achieved. And precise temperature control is realized, and the temperature of the photovoltaic panel is stabilized in an optimal interval in combination with a closed-loop temperature control strategy. The wind-solar complementary power supply and the waste heat cascade recovery device synergistically improve the energy utilization rate, and the multifunctional integrated electric control system realizes hydrogen-electricity-heat multi-target scheduling through a dynamic game optimization algorithm and a digital twin simulation platform. The working temperature of a solar cell is stabilized in the optimal efficiency interval, meanwhile, heat energy loss of a traditional system is converted into hydrogen production effective energy, and an efficient and stable solar energy-hydrogen energy conversion system is constructed.

The invention belongs to the technical field of solar power generation, and particularly relates to a solar photo-thermal power generation and supply system, which comprises a self-adaptive condensation tracking module for outputting stable high-temperature heat flow through multi-stage reflector array cooperative tracking and focus decentralized control; the layered cascade heat storage module receives the high-temperature heat flow and stores the high-temperature heat flow to different areas according to temperature grades; the multi-source cooperative power generation module receives heat energy and cooperatively generates power through multiple systems; the intelligent load prediction scheduling module generates a load prediction result and formulates a power generation scheduling plan; the system self-optimization evolution module monitors operation parameters, parameter self-adaption adjustment and strategy improvement are achieved, the solar energy utilization efficiency is remarkably improved, and the direct solar energy utilization rate is increased to 25% from 20%.

Thermal energy storage systems and methods that include near-black body concentrated sunlight receivers disposed in thermal storage media for storing sunlight and extracting thermal energy for multiple end-use applications. The concentrated sunlight receivers are characterized by absorption of sunlight of at least 95%. The thermal energy storage systems are modular and transportable and can be scaled-up in capacity. Solar concentrators may be integrated with the thermal energy storage systems.