46results about "Collector working fluids" patented technology

A solar environmental control system includes a solar powered apparatus and a heat transfer apparatus. The solar collection apparatus includes a solar collector for absorbing solar energy, a heat storage medium, and a generator. A heat transfer fluid circulates between the solar collector, the heat storage medium, and the generator.

A system and method for efficiency and revitalization of power plant assets allows for existing fossil fuel burning power plants to operate in tandem with renewable power sources and to operate at a consistent base load. The system and method reduce fossil fuel burning power plant power / load cycling and improve efficiency, increase power plant useful lifetime, and reduce emissions. The system and method allow for substantially consistent power output regardless of power demand and power supply generation from existing fossil fuel burning power plants and renewable energy sources supplying a common grid.

Described herein are embodiments directed to a heat recovery arrangement for collecting vaporized gas trapped in regolith. The heat recovery arrangement generally comprising a rover that carries heat recovery elements that cooperate with a primary heat source. The heat recovery elements include a preheat contact element that preheats a region of regolith before the region is brought to high heat by the primary heat source. As the rover moves forward, the preheat contact element receives heat collected from the high heat region via a heat recovery sled that moves in contact with the high heat region. Heat is transferred between the heat recovery sled and the preheat contact element via a heat transfer medium that circulates through the heat recovery sled and preheat contact element.

Device (1) for receiving a volume flow of a medium which, in the solidified state, forms an ionic crystal structure, comprising at least one wall surface (10) which limits the volume flow (3) at least on one side, wherein the wall surface (10) has convex shape elements (20), wherein the device (1) for receiving a volume flow is a tube on the inner wall of which the convex shape elements (20) are arranged, characterized in that each convex shape element (20) has a cross-sectional area in its plane of section perpendicular to the plane of the surface (11) of the wall surface (10) and through its vertex (21) and along the longitudinal direction of the tube, which is bounded by an arc-shaped edge (22) and an edge connected to the arc-shaped edge (22) which is designed as a tangent (23), wherein the edge designed as a tangent (23) transitions into the surface (11).

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.

A concentrated solar power plant comprising a plurality of heliostats or heliostat field, a substantially cylindrical solar energy receiver (2), consisting of a molten salt solar receiver, located atop a central tower (1) and having an external surface covered with receiver panels (8), the heliostats reflecting solar energy to said external surface of the receiver (2), each receiver panel (8) comprising a plurality of heat exchanger tubes (9) for transporting a heat transfer fluid being a molten salt, which are partly exposed on the external surface of the receiver and comprising a thermo-mechanical monitoring system to ensure the integrity of the solar receiver panel tubes in different operation phases ; wherein, using the tube emittance ε obtained from the measurements of the external surface of the receiver obtained from the infrared cameras and the salt temperature in the tubes obtained from the thermocouples during circulation mode, and the atmospheric transmittance τ obtained from the measurements of the weather data, the monitoring system is configured to calibrate the raw temperature measurements Traw acquired by the infrared cameras (4), so as to obtain calibrated temperatures Tcam.

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.

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 utility model discloses a device for accelerating weathering of selected solid waste into soil by utilizing solar energy. The device comprises a solar heat collector, a liquid storage tank, a first one-way valve, a heat pipe, a first pressure pump, a gate valve, a reactor, a filler pipe, a thermometer, a second pressure pump, a second one-way valve and a circulating liquid pipe. According to the utility model, solar energy is converted into heat energy by utilizing the solar heat collector, and the heat energy is transmitted into the reactor, so that the weathering of the mining and selection solid waste into soil is effectively accelerated, the mineral decomposition and reconstruction are realized, and the resource utilization of the mining and selection solid waste as well as the treatment and ecological utilization of the mining and selection solid waste are realized; the filler pipes are distributed in the reactor, provide accommodating space for the selected solid waste, are uniformly distributed and are matched with the gap areas, so that the selected solid waste and high-temperature liquid are subjected to sufficient heat exchange, and weathering of the selected solid waste into soil is further accelerated.

A heat transfer device, such as a heat exchanger, has dimensions and flow speed such that Reynolds number for the flow is in a range from 1 to 1000. The device uses a working fluid which is in a state of elastic turbulence. This enhances transfer of heat to or from the working fluid. In some embodiments the fluid is an emulsion with a disperse phase which changes between liquid and solid so that its latent heat of fusion contributes to the amount of heat carried by the working fluid.

Provided are solar collection energy storage and energy conversion or chemical conversion systems. Also provided are tubing components, such as for solar receivers, including Mo and having a MoSiB coating on an external surface. The systems can include a solar receiver containing a heat transfer material or chemically reacting material and can operate at temperatures of 700° C. or higher. The solar receiver can include tubing components selected from a Mo tubing component, a MAX phase material tubing component, a MoSiB composite tubing component, or a combination thereof. The Mo component, when present, can include a coating on surfaces of the Mo component that operate above 700° C.

The invention discloses a preparation method of a polyaniline modified MXene oil-based nanofluid and a photothermal conversion experimental device. The preparation method comprises the following steps: S1, preparing MXene and regulating and controlling morphology; S2, self-polymerizing and grafting aniline to the surface of MXene; S3, modifying an alkyl ligand and S4, preparing the MXene oil-based nanofluid. By adopting the method provided by the invention, the high-temperature stability of the MXene nanofluid is effectively improved, and meanwhile, the nanofluid is ensured to have excellent light absorption performance.

A heat transfer device, such as a heat exchanger, has a size and flow rate such that the Reynolds number of the flow is in the range of 1 to 1000. The device uses a working fluid in a resilient turbulent flow state. This enhances heat transfer to or from the working fluid. In some embodiments, the fluid is an emulsion having a dispersed phase that varies between liquid and solid such that its latent heat of fusion contributes to the heat carried by the working fluid.

The invention discloses a conjugated polymer direct absorption type solar heat collector which comprises a plurality of vacuum tubes arranged in parallel, and the two ends of each vacuum tube are communicated through a heat preservation tube. A reflecting mirror is arranged below each vacuum tube; a working fluid is arranged in the vacuum tube, and the working fluid comprises a conjugated polymer and a solvent. The conjugated polymer is used as the working fluid of the direct absorption type solar heat collector, efficient heat and mass transfer is guaranteed, meanwhile, insufficient selective absorption of a traditional nanofluid can be effectively avoided, optimal design for specific wavelengths or spectrums is not needed, meanwhile, the flowability of the working fluid can be enhanced, and the service life of the working fluid is prolonged. Agglomeration is avoided.

The present invention relates to a film stretching plant 1 and a solar thermal process temperature control system 10 for a film stretching plant. The process temperature control system 10 comprises at least one solar heat generator 110 and a heat storage tank 210. A heat consumer circuit 300 is connected to the heat storage tank in order to extract stored thermal energy to supply a film stretching plant 1 with thermal energy.

The present invention relates to a molecular solar thermal system (MOST) based on a pair of isomers, comprising in its low energy ground stage primarily a first low-energy isomer which is excitable by solar light to form a metastable high-energy isomer and in its high energy state primarily a second metastable high energy photoisomer generated via photochemical conversion from the solar light excitable first isomer. Said MOST system is characterized by high photo isomerization yields due to the light driven out-of-equilibrium isomerization of the first isomer and is further characterized by a superior thermal stability of the second high energy photo isomer. This allows a long-term storage of collected solar light energy without occurrence of spontaneous unwanted back-isomerization. By applying a particular class of, optionally immobilized, strong basic catalysts, the stored solar energy is released in a controlled manner in a catalytic thermalback reaction to yield the low energy first isomer. This offers the possibility of establishing a cyclic process for repeatedly converting solar light energy into thermal energy. The present invention also provides methods of storing solar thermal energy, methods of releasing stored solar thermal energy, methods of reversibly storing solar thermal energy as well as particular solar thermal energy storage devices comprising the use of the above mentioned MOST pair of photoisomers. The present invention also relates to the use of such compounds for the reversible storing of solar energy. Further aspects of the present invention relate to a solar thermal energy capture device, a combined device for capturing solar thermal energy and solar photoelectric energy, as well as a device for operating a reversible MOST system of the present invention. In addition, the present invention relates to particular novel low and high energy photoisomers applicable in a MOST system of the invention.

A solar energy utilization system is provided with: a Perovskite solar cell part 12 that converts light energy of sunlight into electrical energy; a solar water heater heat-collection plate 14 that is disposed below the Perovskite solar cell part 12, and that collects heat obtained from the sunlight that has passed through the Perovskite solar cell part 12; a casing 20 for housing the Perovskite solar cell part 12 and the solar water heater heat-collection plate 14; a tempered glass part 16 that is provided within the casing 20, and on which the Perovskite solar cell part 12 is placed; and a flow path part 18 that is provided within the casing 20 in contact with the solar water heater heat-collection plate 14, and that allows fluid to flow to exchange heat collected by the solar water heater heat-collection plate 14.

The application relates to the technical field of solar water heating equipment, in particular to a solar water heating device combined with a special-shaped steel structure roof. The application aims to solve the technical problem that the heat collecting pipe in the solar water heater is prone to generating a large amount of scale and needs to be cleaned one by one, which is relatively troublesome. The technical scheme is to provide a solar water heating device combined with a special-shaped steel structure roof, which comprises a solar water heater body, the solar water heater body comprises a supporting frame, the top of the supporting frame is provided with a heat collecting assembly. The application has the beneficial effect that the heat collecting assembly, the heat conducting oil filled between the water storage shell and the shell and the inner cavity of the heat collecting pipe are used, the heat conducting oil in the heat collecting pipe is heated preferentially when sunlight irradiates, the heat conducting oil between the water storage shell and the shell is heated, the water storage shell is made of copper, the water in the water storage shell is heated, and the heat conducting oil is added into the heat collecting pipe, so that scale in the heat collecting pipe is prevented.

The utility model relates to the technical field of heat supply and heating, in particular to a micro-channel heat exchanger direct heating machine which comprises a heat collection unit, a heat supply storage unit, a heat exchange unit, a direct heating unit, a control unit and an output unit. The heat exchange unit is arranged on the upstream of the direct heating unit, so that the heat supply medium can be effectively preheated, the heating time of the direct heating unit for the heat supply medium is effectively shortened, the overall heating efficiency of the direct heating unit for the heat supply medium is improved, meanwhile, the heat supply medium is preheated, and the heat supply efficiency of the direct heating unit is improved. According to the direct heating machine, the heat stress generated in the heating process of the heat supply medium can be effectively reduced, the direct heating unit is protected against damage, the service life of the direct heating unit is effectively prolonged, and meanwhile the heating efficiency of the direct heating machine for the low-temperature heat supply medium is further improved.

This invention discloses a particle heat absorber, comprising a top header and a fluidizing device arranged vertically. At least one sleeve connects the top header and the fluidizing device. Each sleeve includes an outer heat-absorbing tube and at least one inner tube disposed within the outer heat-absorbing tube. Both ends of the outer heat-absorbing tube are connected to the top header and the fluidizing device, respectively. Both ends of the inner tube are connected to the top header and the fluidizing device, respectively. The upper part of each outer heat-absorbing tube is connected to a gas distribution pipe. The lower end of each outer heat-absorbing tube is connected to a gas collecting pipe, which is connected to the fluidizing device. The fluidizing device is connected to a particle feeding device.

The invention relates to the technical field of concentrating solar thermal power generation, and discloses a transient temperature rise suppression device and method for a tower type concentrating solar exposed tubular heat absorber. The transient temperature rise suppression device comprises a heat absorption tube, and the outer surface of the heat absorption tube is divided into a light receiving side and a backlight side; the temperature rise buffer assembly, the heat transfer coupling assembly, the heat insulation layer and the folding and unfolding structure are installed on the backlight side of the heat absorption pipe. The temperature rise buffer assembly comprises a packaging shell, a phase change heat storage medium packaged in the packaging shell and a heat conduction enhancing structure making contact with the phase change heat storage medium, and the heat transfer coupling assembly is arranged between the outer wall of the heat absorption pipe and the temperature rise buffer assembly. The temperature rise buffer assembly is arranged on the backlight side of the heat absorption pipe, the low-heat-resistance heat conduction channel is built in combination with the heat transfer coupling assembly, the phase change latent heat of the phase change heat storage medium is used for absorbing redundant heat generated when irradiation suddenly increases, peak clipping of the wall temperature of the heat absorption pipe and limiting of the temperature rise rate are achieved, and the damage risk of thermal stress impact to the heat absorption pipe and the connecting position is effectively reduced.

The invention discloses a preparation method of a surface-modified oil-based MXene nanofluid and a photothermal conversion experimental device. The preparation method comprises the following steps: S1, intercalation treatment; s2, regulating and controlling the morphology of the MXene nanoparticles; s3, grafting and modifying the surface of MXene by using an organic ligand; and S4, preparing the oil-based MXene nanofluid. By adopting the method provided by the invention, the high-temperature stability of the MXene nanofluid is effectively improved, and meanwhile, the nanofluid is ensured to have excellent light absorption performance.

A solar power generation system having a thermal energy storage system, a solar energy collection system, a power generation system, and an electric generator. The thermal energy storage system has a thermal energy storage vessel containing a thermal mass composition operable to store thermal energy and a plurality of heat exchanger modules. The solar energy collection system has a plurality of heliostats, a tower, and a first closed flow loop including a solar collector with at least one thermal receiver mounted on the tower. The first closed flow loop is configured to transfer the thermal energy to the thermal mass composition in the thermal energy storage vessel from the solar energy collection system. The power generation system has a second closed flow loop including a turbine and configured to transfer thermal energy form the thermal energy storage vessel to the turbine to produce electricity.

The application discloses a kind of trough type heat collection system salt injection construction method, including molten salt tank for trough type heat collection system and salt storage tank, and the upper and lower parts of salt storage tank are respectively provided with feeding mechanism and heating mechanism, rotating device is installed outside fine filter box and is used to rotate filter filler layer, so that the liquid molten salt flowing through siphon internal persistence and filter filler layer different filter surface are continuously filtered impurities;Gas extraction assembly is arranged on the temporarily airtight salt storage tank, and the finished product liquid molten salt in the salt storage tank is discharged into the salt storage tank in a self-suction manner under the cooperation of siphon, gas extraction pipe and air valve, the setting of coarse filter cover and fine filter box filter filler layer ensures that the finished product liquid molten salt in molten salt tank can be continuously filtered impurities, and the solid molten salt in molten salt tank is added without directly affecting the finished product liquid molten salt in salt storage tank.

Apparatus for generating thermal energy using concentrated solar power, the apparatus comprising a fluidised bed which including a dual heat exchange and solar receiver and means to circulate solid particles around the fluidised bed.

The invention relates to a direct absorption type solar heat collector based on a bottom incidence mode and a construction method, and the method comprises the steps: building a heat collector model, optimizing the working fluid in the heat collector through a numerical simulation and experimental verification method, optimizing the key parameters of the model fluid, and obtaining the direct absorption type solar heat collector based on the numerical simulation result. Selecting an appropriate inlet flow rate and a fluid attenuation coefficient of a heat collector model, obtaining optimal values of the length and the height of the heat collector, and taking the fluid attenuation coefficient, the inlet mass flow rate, the length and the height of the heat collector, nanoparticle parameters and the like as design variables to maximize the photo-thermal conversion efficiency of the heat collector; and a multi-objective optimization system for heat efficiency maximization and temperature uniformity optimization of the heat collector is constructed. The solar energy and heat energy conversion efficiency is effectively improved.

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 utility model relates to the technical field of photo-thermal energy utilization, in particular to a photo-thermal and liquid metal medium coupling new energy system which comprises a photo-thermal collector. The fused salt energy storage tank or the steam storage tank is connected with a medium outlet of the photo-thermal heat collector through a liquid metal pipeline and used for storing heat of the high-temperature liquid metal or releasing heat; the steam generator is connected with the medium outlet of the fused salt energy storage tank, heats water into steam by using the heat of the liquid metal, and conveys the steam to an energy consumption terminal through a steam pipeline; the liquid metal storage tank is used for storing liquid metal, an inlet of the liquid metal storage tank communicates with the steam generator through a liquid metal pipeline, and an outlet communicates with a medium inlet of the photo-thermal collector through a liquid metal pipeline. According to the utility model, the liquid metal is used as a heat transfer medium, and the photo-thermal system is optimized and improved on the basis, so that the construction, operation and maintenance cost is remarkably reduced, and an efficient, safe and sustainable innovative path is provided for photo-thermal power generation and energy utilization.

A solar radiation receiver having a receiver chamber having at least one radiation opening through which concentrated solar radiation can be introduced into the receiver chamber, having at least one solar absorber device which has at least one solid medium block which is fastened to a transport device, and having at least one opening through which the at least one solar absorber device is inserted such that the at least one solid medium block is arranged in the receiver, and through which the solar absorber device is removed.