1053results about "Solar-rays concentration" patented technology

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 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 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 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.

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

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%.

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 carbon dioxide trapping system based on solar energy comprises an absorption tower which is provided with a first inlet, a first outlet, a second inlet and a second outlet; the desorption tower is provided with a third inlet, a third outlet, a fourth inlet, a fourth outlet and a fifth outlet; an inlet of the first pipeline is communicated with the fourth outlet, an outlet of the first pipeline is communicated with the fourth inlet, and a first pump body is arranged on the first pipeline; the reboiler is used for heating the liquid in the first pipeline; the solar heat collector comprises a light gathering piece, the light gathering piece is used for gathering sunlight, the sunlight gathered by the light gathering piece serves as a heat source of the reboiler, the light gathering piece is arranged on at least one of the absorption tower, the desorption tower and the solar installation frame, and the solar installation frame, the absorption tower and the desorption tower are arranged at intervals. Therefore, the carbon dioxide trapping system based on the solar energy has the advantages of reducing energy consumption and saving energy.

The invention relates to the technical field of solar power generation, in particular to a photovoltaic photo-thermal coupling system based on air bag adjustment. Comprising a supporting frame, the top of the supporting frame is sequentially provided with a semitransparent photovoltaic assembly, an air bag module and a photo-thermal reflection assembly from top to bottom, and the air bag module is connected with the semitransparent photovoltaic assembly or / and the photo-thermal reflection assembly; the air bag module is connected with the gas injection system and the liquid nitrogen injection system through pipelines, and the gas injection system and the liquid nitrogen injection system are connected with the control system. The semitransparent photovoltaic assembly is provided with an illumination angle sensor and a temperature sensor, and the illumination angle sensor and the temperature sensor are connected with the control system. The air bag module dynamically adjusts the relative position and the inclination angle of the photovoltaic module and the photo-thermal module according to the solar elevation angle, so that incident light is always distributed to the photovoltaic module and the photo-thermal reflection module at the optimal angle; liquid nitrogen vaporized gas is injected into the air bag module through the liquid nitrogen injection system, and liquid nitrogen is used for assisting in rapid cooling of the photovoltaic module.

A system for providing a contour map of the surface of a heliostat from reflected sunlight using a fly's eye camera. The system includes an entrance screen configured to receive sunlight reflected by said heliostat; an array of imaging apertures extending across the entrance screen, each aperture forming an image of said heliostat from a different viewpoint to provide a plurality of heliostat images; one or more digital cameras configured to view all of said plurality of heliostat images; an image processor configured to map out from the plurality of heliostat images a location of sunlight delivered to the entrance screen to obtain a plurality of maps, and to provide, based on centroids of said maps a tip and tilt of each said subsection The reflecting surface profile of the heliostat is obtained by integration of the subsection tilts across all the subsections.

The solar energy trapping system based on the absorption tower and the desorption tower comprises the absorption tower which is provided with a first inlet, a first outlet, a second inlet and a second outlet; the desorption tower is provided with a third inlet, a third outlet and a fifth outlet, the third inlet is communicated with the first outlet, the third outlet is located at the top of the desorption tower and used for discharging carbon dioxide gas, and the fifth outlet is communicated with the second inlet; the light gathering part is used for gathering sunlight, the sunlight gathered by the light gathering part faces the desorption tower and serves as a heat source of the desorption tower so that carbon dioxide gas can be discharged from rich liquid in the desorption tower, the light gathering part is arranged on at least one of the absorption tower and the solar energy installation frame, and the solar energy installation frame, the absorption tower and the desorption tower are arranged at intervals. Therefore, the solar energy trapping system based on the absorption tower and the desorption tower has the advantages of reducing energy consumption and saving energy.

The invention discloses a ceramic solar heat collector and a using method thereof, and belongs to the technical field of solar heat collectors, the ceramic solar heat collector comprises a mounting frame, a plurality of ceramic heat collecting pipes distributed in a linear array are arranged in the mounting frame, and a mirror surface adjusting assembly is arranged below the ceramic heat collecting pipes. According to the heat exchange device, by arranging the layered dust removal assembly and forming an upper cavity and a lower cavity through a layered box, cold and hot circulation in the ceramic heat collection pipe is guided, mutual interference of the cold and hot circulation is avoided, the area where cold water flows is always right opposite to the direct sunlight irradiation direction, and the heat exchange efficiency and the heat exchange performance are improved; the layering box drives the inclined cleaning brush to be matched with clear water to clean the inner wall of the ceramic heat collecting pipe through the fixed sleeve and the movable sleeve, the cleaning brush is in a deflection state in the cleaning process, shear stress and vortex are generated on the inner wall of the ceramic heat collecting pipe in the rotating process, and therefore the cleaning efficiency of impurities such as water scales is improved.

The invention belongs to the technical field of heat storage, and provides a paired metal hydride storage tank heat storage system and method for solar power generation. Wherein the paired metal hydride storage tank heat storage system is respectively communicated with the solar concentrating system and the electric power system through a heat exchange medium pipeline; the paired metal hydride storage tank heat storage system is configured in a multi-stage tandem mode, and at least two stages of heat storage systems are sequentially arranged in the flowing direction of heat exchange fluid in the heat output process. Under the operation requirement higher than the threshold load, all levels of heat storage systems are in an activated state, heat exchange fluid flows through each level of system according to a preset path, and heat released by each level of heat storage system is absorbed step by step; and under the condition that the load is lower than the threshold value for operation or the set working condition requirement, at least one stage of heat storage system bypass directly obtains the needed heat from other stages of heat storage systems.

A system and method for production of hydrogen from natural gas using a solar powered system are provided. An exemplary solar powered system includes a feed stream including methane and a solar concentrator reactor (SCR) to form hydrogen from the feed stream by pyrolysis. The SCR includes a rotating tubular reactor, a solar absorber material disposed on the rotating tubular reactor, a solar concentrator to focus sunlight on the rotating tubular reactor, and a gas-solid filtration unit to separate solid carbon from the hydrogen. The solar powered system includes a storage tank to hold the hydrogen.

The present disclosure provides a solar reactor, comprising: a main body, wherein a reaction chamber is defined within the main body, and the main body is provided with a light-transmitting port suitable for accommodating incident light formed by light rays collected from outside the reaction chamber to enter the reaction chamber, wherein the incident light is dispersed within the reaction chamber to form divergent light that is dispersed within the reaction chamber; and a solid component, disposed within the reaction chamber, and provided with a protrusion protruding toward the middle of the reaction chamber, wherein at least a portion of a light-facing surface of the protrusion facing the divergent light is configured to form an angle other than 90° with the projection direction of the divergent light, so that the divergent light extends along the thickness direction of the solid component; wherein the solid component is made of a material used as an oxygen carrier or catalyst in a chemical reaction using solar energy as a heat source.

The invention provides a photovoltaic photo-thermal collaborative system based on sand heat storage and a heat energy utilization method of the photovoltaic photo-thermal collaborative system. The system comprises a semitransparent photovoltaic battery assembly, a plate type condenser, a heat collection pipeline system, a sand heat storage unit and an auxiliary structure from top to bottom. The semitransparent photovoltaic cell assembly absorbs visible light to generate electricity, ultraviolet light and infrared light penetrate through the assembly and are focused to the heat collection pipeline system through the plate type condenser, and working media are heated and then stored in the sand heat storage unit to be used at night or in the peak load period. According to the system, the comprehensive utilization rate is increased to be larger than or equal to 85% through spectrum separation, sand heat storage cost is low, the service life is long, the structure is compact, adaptability is high, day and night energy supply can be achieved, the system is suitable for various scenes such as western deserts, remote areas and agricultural greenhouses, and the problems that an existing photovoltaic photo-thermal system is low in efficiency, weak in heat storage, high in cost and insufficient in environmental adaptability are effectively solved.

The invention relates to a heat pipe type fluidized bed particle heat storage system which is mainly used for solar heat utilization. The system mainly comprises a light gathering device, a heat collecting pipe and a fluidized bed. The heat collection pipe adopts a sealed vertical heat exchange pipe bundle, is divided into a heat absorption section, a heat insulation section and a heat release section, and is filled with a phase change medium to efficiently store heat and transfer heat. Heat carrier particles are contained in the fluidized bed and are in direct contact with the heat release section of the heat collecting pipe for rapid heat exchange, the fluidized bed technology is used for achieving the advantages of being rapid in heat transfer, uniform in heat distribution, large in operation flexibility and the like, and different illumination intensity conditions can be adapted. The system is compact in overall design and small in heat loss, has efficient and stable heat utilization performance, and can be widely applied to the fields of solar thermal power generation, solar thermochemistry and the like.

The invention provides a method for measuring energy flux density three-dimensional space distribution of a solar concentrator, and belongs to the technical field of solar photo-thermal power generation. Comprising the steps that an energy flux density sensor array of a main-auxiliary column structure is constructed, main columns are symmetrically arranged with the focus of a condenser as the center, and auxiliary column sensors are located at the centers of adjacent sensors of the main columns; the array is driven by a double-shaft guide rail system to perform multi-plane scanning, and CCD images and energy flux density data are synchronously acquired; establishing a mapping relation between the energy flux density data and the space coordinates based on the optical reference points; in-plane data are processed by adopting a thin-plate spline interpolation method, and three-dimensional energy flux density field reconstruction is realized by combining a trilinear interpolation method. The normalized peak energy flux density gradient between adjacent scanning planes is controlled within 40%. According to the invention, data are directly obtained through the energy flow sensor, CCD gray scale conversion errors are avoided, and the energy flow density three-dimensional space distribution characteristics from a focal plane to a discrete region can be completely represented by adopting the dynamically adjustable scanning plane spacing.

The invention discloses a groove type photo-thermal photovoltaic power station and sand plant composite installation structure and method, and aims to solve the problems that in the prior art, installation and adjustment of a groove type collecting lens are relatively difficult, the groove type collecting lens cannot adapt to the slope of the top of a sand plant steel structure shed, flexible adjustment cannot be conducted according to the illumination angle, and the installation cost is low. And the light energy utilization efficiency of the photo-thermal photovoltaic power station is influenced. The installation structure comprises a sand yard steel structure shed, the top of the sand yard steel structure shed is provided with a groove type solar thermal power generation assembly, the groove type solar thermal power generation assembly comprises a longitudinal supporting plate, and the top of the longitudinal supporting plate is provided with a rotatable bottom supporting pipe. And the device can adapt to the slope of the top of the steel structure shed of the sand plant, so that the angle of the groove type collecting lens can be adjusted, and the light energy utilization efficiency of a photo-thermal photovoltaic power station is improved.

An auxiliary calibration apparatus and method for a heliostat, and a photothermal power generation system. The auxiliary calibration apparatus for a heliostat comprises a calibration body and a detection assembly. The calibration body comprises a first optical surface and a second optical surface which are oppositely disposed. The detection assembly is provided with a first sensing surface and a second sensing surface, the first sensing surface being parallel to the second sensing surface. The detection assembly is used for detecting a second light spot position of a target point of a receiving tower on the second sensing surface after passing through the second optical surface, and detecting a first light spot position of the image of the sun in a heliostat on the first sensing surface after passing through the first optical surface, so as to adjust the angle of the heliostat on the basis of the second light spot position, such that the first light spot position and the second light spot position are symmetrical about the center of the detection assembly. By using the described solution, the adjustment precision of the heliostat can be improved.

The invention relates to the technical field of cement clinker calcination, and provides a solar condensation cement clinker direct calcination waste heat two-way grading utilization system which comprises a preheating module, a heat exchange module, a heat exchange module, a heat exchange module and a heat exchange module which are arranged in the material flow direction, the preheating module comprises a first preheating unit and a second preheating unit; the clinker reactor is arranged at the downstream of the preheating module and is used for calcining raw materials; a decomposed gas outlet of the clinker reactor is connected to the first preheating unit; the cooling machine is arranged at the downstream of the clinker reactor and is used for cooling the clinker; a waste gas outlet of the cooler is connected to the second preheating unit, and an air locking valve is arranged between the reactor and the cooler for tight isolation to prevent waste gas of the cooler from entering the reactor. Through the arrangement, heat in the decomposed gas and heat in the clinker cooling waste gas can be independently utilized, so that the purity of CO2 in the decomposed gas is guaranteed while waste heat is fully recycled and utilized, and the follow-up capture difficulty and capture cost of CO2 are reduced.

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 invention relates to the technical field of solar power generation, in particular to a wind power-photo-thermal-photovoltaic integrated energy system. Comprising a wind power generation mechanism, the wind power generation mechanism comprises a tower, and a generator cabin and wind power blades are arranged at the top of the tower; the photo-thermal power generation mechanism comprises a heat collector installed in the middle of the tower barrel, a plurality of reflectors are arranged on the ground around the tower barrel, and the heat collector receives sunlight focused by the reflectors and heats heat conduction fluid. The photovoltaic power generation mechanism comprises a first photovoltaic cell assembly located on the peripheral wall of the tower drum, a second photovoltaic cell assembly located on the back face of the reflecting mirror and a third photovoltaic cell assembly located on the surface of the wind power blade. The reflecting mirror is used for reflecting sunlight to the heat collector or the first photovoltaic battery assembly; the wind power generation mechanism, the photo-thermal power generation mechanism and the photovoltaic power generation mechanism are all connected with the energy management system. Wind power, photo-thermal and photovoltaic are fully combined, the energy utilization efficiency is improved, power fluctuation is reduced, and the stability and adaptability of the system are enhanced.

The invention discloses a solar energy-biomass collaborative conversion distributed energy system based on calcium-based thermochemical heat storage driving biomass gasification. The solar energy-biomass collaborative conversion distributed energy system comprises a heat storage system, a biomass gasification system, a solid oxide fuel cell combined gas turbine power generation system, a Rankine cycle power generation system, a hot water supply system and pipelines for connecting all the systems. According to the heat storage system, heat energy is stored in the form of chemical energy through the concentrating solar energy technology and the calcium-based thermochemical heat storage technology, and continuous operation of the system is guaranteed. According to the biomass gasification system, heat released in the calcium oxide carbonation process is used for providing heat for the biomass gasification furnace, and biomass materials are converted into high-temperature synthesis gas. And then the high-temperature synthesis gas passes through a high-temperature purification device and then enters a solid oxide fuel cell-gas turbine system of top layer circulation to generate electric power. And finally, the waste heat flue gas provides heat energy for a steam power Rankine cycle and a hot water supply system.

An absorber tube for a parabolic trough solar power plant is described. The absorber tube includes a glass pipe that extends from a first end to a second end of the parabolic trough. A helical pipe is enclosed within the glass pipe. The helical pipe is configured to hold water. A sand filled pipe is surrounded by the helical pipe. The absorber tube further includes an inner pipe, centered within the sand filled pipe and the inner pipe extends from the first end to the second end of the parabolic trough along a central axis of the glass pipe. A solenoid valve is connected between the helical pipe and the inner pipe. The solenoid valve is configured to block the water from entering the inner pipe during periods of high solar irradiance and release the water to the inner pipe during periods of low solar irradiance.