131results about "Collector working fluids" patented technology

The invention provides molybdenum sulfide powder, a heavy metal adsorbent, a photo-thermal conversion material, a distillation method, an oxygen reduction catalyst and catalyst ink. This molybdenum sulfide powder contains a 3R crystal structure of molybdenum disulfide. The heavy metal adsorbent according to the present invention contains molybdenum sulfide particles having a median diameter (D50) of 10-1000 nm as determined by a dynamic light scattering type particle size distribution measurement device. This photo-thermal conversion material contains a material containing molybdenum sulfide particles, and generates heat by absorbing light energy.

The invention discloses a solar heat utilization optimization method of a heat collector, heat collector equipment and a computer device. The method comprises the following steps: predicting radiation characteristics of suspended nanoparticles based on an artificial neural network model by utilizing a boundary element method; parameters of the heat collector are optimized through a genetic algorithm, and the radiation characteristics of the suspended nanoparticles are evaluated; constructing a heat collector structure optimized by the genetic algorithm in the finite volume method simulation framework, and verifying the rationality of parameters of the heat collector structure; preparing a ternary mixed nano suspension, and verifying the stability of the ternary mixed nano suspension; a heat collector device is prepared based on the ternary mixed nano suspension, a sensor network is arranged in the heat collector device to continuously collect data, the solar heat utilization rate of the heat collector device is determined according to the data, and the data is uploaded to an upper computer to be managed and analyzed. Optimization and performance improvement of the solar heat collector equipment are achieved, and the thermal performance of the heat collector equipment is improved.

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.

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.

To improve heat quantity acquired from a sunlight heat collection panel.SOLUTION: A sunlight heat collecting system 1 includes: a sunlight heat collection panel 2 that has a non-heat insulation part 2c causing convection heat transfer with surrounding air and transfers radiation heat from the sunlight and convection heat from the surrounding air to a heating medium M; a heating medium circulation line 4 for sending the heating medium M from a heating medium tank 3 that stores the heating medium M to the sunlight heat collection panel 2 and sending the heating medium M from the sunlight heat collection panel 2 to the heating medium tank 3; a heating medium flowing control mechanism 5 that performs at least either of switching between permission and prohibition of flowing of the heating medium M along the heating medium circulation line 4 or regulation of a flow rate of the heating medium M; and a control device 9. The control device 9 measures radiation heat input quantity Q1 to the sunlight heat collection panel 2, measures convection heat transfer quantity Q2 between the sunlight heat collection panel 2 and the surrounding air, and controls the heating medium flowing control mechanism 5 on the basis of the radiation heat input quantity Q1 and the convection heat transfer quantity Q2.SELECTED DRAWING: Figure 1

A hybrid solar energy power generation system includes a thermal energy storage (TES) vessel containing a thermal mass composition operable to store thermal energy, a concentrated solar power (CSP) system, and a photovoltaic (PV) power system. The CSP system heats a first working fluid flowing in first closed flow loop via a solar collector. The heated first working fluid recirculates through the TES vessel to heat the TM composition. The PV power system generates electricity which can be delivered directly to the electric power grid or alternatively when grid demand drops energizes can electric heaters to supplement heating the first working fluid. This increases the temperature and enthalpy of the first working fluid to store additional thermal energy in the TM composition. The TES vessel is operable to heat a second working fluid to produce steam usable for industrial processes, district heating, or to power a Rankine power generation cycle.

A hybrid photovoltaic thermal (PVT) system including flexible integration of spectral splitting optical filtration and thermal management utilities is described. An optical filtration (OF) channel is provided above a PV panel of the hybrid PVT system, wherein an OF fluid in the OF channel transmits a first light that is within a predefined spectral range and absorbs a second light that is outside the predefined spectral range. A cooling fluid (CF) channel is provided below the PV panel, wherein the CF channel contains a cooling fluid. A phase change material (PCM) layer is provided between the PV panel and the CF channel, wherein at least one of the OF fluid in the OF channel, the cooling fluid in the CF channel, or the PCM layer contains nanoparticles.

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.

The invention discloses a solar thermal collector driven adsorption refrigeration operation test system, comprising: a heat-driven adsorption refrigeration test device, a thermal stability maintenance effect inspection box and a stabilizing bracket. The heat-driven adsorption refrigeration test device consists of a heat sink, an evaporating tube, a heat conducting tube, a collector flexible connector, a solar thermal collector tube and a solar thermal collector tube tray. A heat dissipation tube is fixedly installed at the inner end of the heat sink, an adsorbent barrel is fixedly installed at the inner end of the heat dissipation barrel, and an adsorbent barrel rib is fixedly installed at the outer end of the adsorbent barrel. The solar thermal collector driven adsorption refrigeration operation test system can realize the performance parameter test of the solar thermal collector driven adsorption refrigeration system. Referring to the experimental results, the industrialization development of the adsorption refrigeration technology can be promoted by optimizing the structure and material of the adsorption bed, improving the heat and mass transfer performance, and improving the refrigeration efficiency of the system.

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.

The invention 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 technical problem to be solved by the invention is that heat collecting pipes in the solar water heater are easy to generate more incrustation scale, the incrustation scale needs to be cleaned one by one, and the operation is more troublesome. According to the technical scheme, the solar water heating device combined with the deformed steel structure roof comprises a solar water heater body, the solar water heater body comprises a supporting frame, and a heat collection assembly is arranged on the top of the supporting frame. The solar water heater has the beneficial effects that the heat collection assembly, the space between the water storage shell and the shell and the inner cavity of the heat collection pipe are all filled with the heat conduction oil, the heat conduction oil in the heat collection pipe is preferentially heated when sunlight irradiates, the temperature of the heat conduction oil between the water storage shell and the shell is increased, the water storage shell is made of copper, and the heat conduction oil is not prone to falling off; and heat conduction oil is added into the heat collection pipes, so that water scales can be prevented from being generated in the heat collection pipes.

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.

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 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.

Our solar lava heat exchanger invention uses a solar concentrator (1) mounted on an automated solar tracking system. The solar concentrator heats obsidian beyond its melting temperature, forming a lava bath (2). A very high temperature resistant thermal conductive tube (3) is placed near or in the lava bath (2), thereby allowing a heat transfer fluid (4) to pass through it. The heat transfer fluid heated by the lava bath (2) is used to produce heat at extremely advantageous efficiencies for multiple applications such as industrial drying, low pressure pumping, desalination, steam production, electricity generation, heating, etc. Figure for abstract [Fig 1]

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 device is disclosed for the storage and transfer of solar thermal energy which includes a casing having a irradiation opening for the entry of incident solar radiation in a irradiation region of the casing. a bed of fluidizable solid particles received within the casing, and a plurality of reflecting and radiating surfaces arranged within the irradiation region and configured to convey the solar radiation entering through the irradiation opening, after multiple reflections, on the bed of particles.

Heat exchange arrangement (200) with a channel (400) with a height in the direction of a vertical axis (z) in the direction of action of gravity (g), in which at least several first storage elements (430, 440) are arranged, wherein the channel (400) has an upper particle inlet (206) and a lower particle outlet (208) seen in the direction of gravity, which are provided for introducing and discharging particles (220) into and from the channel (400), respectively, wherein the channel (400) has a gas inlet (202) and a gas outlet (204) for a gas flow (210), wherein in the free cross-section of the channel (400) first deposition elements (430, 440) are arranged transversely to the vertical axis (z) and have deposition surfaces (432, 442) which, in the intended use, are provided for at least temporarily depositing and / or reflecting at least some of the particles (220), wherein a portion of the particles (220) in the operating state temporarily remains on the depositing surfaces (432, 442) of the first depositing elements (430, 440), whereby an average speed of the particles (220) in the direction of the vertical axis (z) is reduced and thereby a residence time of the particles (220) in the channel (400) is increased and the depositing surfaces (432, 442) stabilize the stationary particles.

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 solar heating and radiation cooling building energy-saving system integrating cold storage and heat storage and a control method, the system comprises a hot-cold coupling conversion module, a heat storage container, a cold storage container, a heat exchange adjusting device and a control and switching unit, and the heat storage operation mode, the heat supply operation mode, the cold storage operation mode and the cold supply operation mode can be flexibly switched. According to the hot-cold coupling conversion module, independent and separated heating and cooling channels are constructed, an efficient nanofluid heat absorption medium and a multi-layer film radiation cooler are introduced, the functions of efficient solar energy absorption and atmospheric window wave band radiation emission are achieved, and synchronous management of heat energy and cold energy is achieved. According to the control method, loop switching, flow adjustment, temperature feedback and dynamic optimization control strategies are executed based on real-time environment parameters and indoor thermal load requirements, and switching and adjustment of the system under variable working conditions are ensured. The dynamic response and energy consumption optimization of the annual cooling and heating load of the building can be realized, and the adaptability, the stability and the energy-saving effect of the system are remarkably improved.

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.