72 results about "Solar field" patented technology

A small scale, concentrated solar power generation system includes a solar field of parabolic reflectors that may be located in proximity to load centers such that waste heat from the generation system may be employed in distributed, auxiliary applications.

The invention discloses a trough-dish combined solar thermal power generation system with a fixed focus and relates to a solar thermal power generation technology. The system comprises a trough type heat-collecting and heat-storing subsystem, a dish type heat-collecting and heat-storing subsystem and a power generation subsystem, wherein the trough type heat-collecting and heat-storing subsystem and the dish type heat-collecting and heat-storing subsystem are separately connected with the power generation subsystem; and the low temperature heat exchanger of the trough type heat-collecting and heat-storing subsystem is connected with the high temperature heat exchanger of the dish type heat-collecting and heat-storing subsystem. A parabolic dish reflecting mirror contains one dish or two dishes which can perform single-spindle automatic tracking and the focus, namely the receiver is fixed, thus facilitating the heating and heat insulation of large flow high temperature fluid. The invention adopts a trough type solar field with low investment cost to heat the low temperature section of the working medium and a dish type solar field to heat the high temperature section of the working medium, thus reducing the investment of the electric power plant under the premise of ensuring high generating efficiency.

A solar plant including a solar field for production of steam, a turbine using steam, and an excess steam storage and draw off system. The system includes a latent heat thermal storage module and a liquid displacement thermal storage module including a liquid volume and a steam blanket. The modules are connected together so that the steam produced passes through the steam blanket before passing through the latent heat module, condensing, to be injected in the liquid volume, the lower part of the liquid volume being connected to the solar field and to an outlet of the turbine to let in or return cold liquid. The liquid volume acts as a liquid displacement reservoir.

The invention provides a solar seawater concentration desalting device and method. The device mainly comprises a fan, a concentrating solar air heater, an evaporator, a floating type absorbent cloth turntable and a condenser. A micro-evaporation environment is actively formed by use of an absorbent cloth net, and the hot air is quickly evaporated through the floating type absorbent cloth turntable immersed in the evaporator; and the absorbent cloth generates density difference in the evaporation process so that the floating type absorbent cloth turntable automatically rotates in the evaporator in a manner of deviating from the gravity center to realize continuous operation of the evaporation process. Since the evaporation process is not influenced by the boiling point elevation and the scaling of inorganic salts such as calcium carbonate and magnesium hydroxide, up-to-quadruple concentration evaporation of seawater can be realized. The device and method can be applied to the concentration treatment of seawater desalination, solar salt making in a solar field and inorganic wastewater. Compared with a common distillation evaporation and reverse osmosis technology, the treatment is not influenced by the salt content in water, and the device can be used for treating seawater / brackish water until a high-concentration salt-containing water body is obtained.

Provided herein is a floating photovoltaic solar device designed to reduce the effect of wind forces without the use of external control or power. The device includes a floating anchored frame with a means for connecting an internal corded lattice; a corded lattice suspended within the floating frame and forming a set of polygonal cells in which independently floating solar photovoltaic modules are positioned. Access for scheduled and unscheduled maintenance may be provided by a floating service gantry. The system is modular and several devices may be connected in a honeycomb-like structure.

The invention relates to a graphene counter electrode for a dye-sensitized solar cell, belonging to the technical field of solar cells. The graphene counter electrode comprises a transparent substrate, a graphene conducting layer and a graphene catalyst layer, wherein the graphene conducting layer is arranged on the surface of the transparent substrate, the graphene catalyst layer is arranged on the surface of the graphene conducting layer; the graphene catalyst layer is manufactured by coating slurry formed by mixing graphene (or graphene-doped) powder, hydroxyethylcellulose and a volatile organic solvent on the graphene conducting layer, and drying a mixture. According to the graphene counter electrode disclosed by the invention, graphene is taken as a conducting layer to replace a traditional conducting thin film, such as ITO (Indium Tin Oxide); graphene powder with very large specific surface area as a catalyst layer takes the place of traditional metal platinum particles and has better catalysis effect. The graphene counter electrode disclosed by the invention has the characteristics of large area, low cost and high efficiency, the manufacturing process of the graphene counter electrod is simple, and a flexible electrode is conveniently obtained, thus the invention is hopeful to prompt the application of the graphene in the solar field, in particular the aspect of flexible dye-sensitized solar cells.

The invention belongs to the solar field and relates to a tower type solar boiler. The solar boiler consists of a solar reflector field and a three-section type staged and zonal heat collection tower, wherein the solar reflector field consists of three fan-shaped heliostat fields from the interior to the exterior, and solar radiation is reflected to three stages of heat absorbers respectively by the three heliostat fields to produce saturated water, dry saturated vapor and superheated vapor. Due to the adoption of miniature heliostats, on one hand, the uniformity and the controllability of the energy flux density of light spots are improved, and the efficiency is largely improved; and on the other hand, the accuracy requirement of a heliostat tracking control system is lowered, and the cost is lowered. The heat absorbers are divided into three sections according to the heating power properties of the water and the vapor in different heat absorption processes. Meanwhile, the heliostat fields are designed according to the energy flux distribution requirements of all the heat absorbers, and the problems that two-phase flow in a single stage of heat absorber or two stages of heat absorbers causes instable heat exchange and nonuniform heat stress distribution on the surface of the heat absorber are solved. The solar boiler is suitable for solar power stations.

The concentrated solar power (CSP) plant comprises a solar field and a vapor turbine system. The vapor turbine system includes a vapor turbine arrangement. The vapor turbine arrangement receives super-heated vapor generated by heating a working fluid circulating in the vapor turbine system. The plant further comprises a thermal transfer system configured for transferring solar thermal energy from the solar field to the vapor turbine system. Moreover, a supplemental-energy delivery device is provided, which is configured for superheating the vapor, when the solar thermal energy from the solar field is insufficient to generate superheated vapor.

A solar power system includes a steam turbine with a plurality of pressure stages, a first solar field for heating water or water steam, and a first heat exchanger. The first heat exchanger is operated with molten salt liquids. Further, with a method of operating such a solar power system, water steam from the first solar field is transferred to the first heat exchanger, where the water steam is heated by the first heat exchanger and routed to a high pressure stage of the steam turbine.

The invention discloses a solar support and a method for preventing a solar photovoltaic panel from being stolen and relates to the solar field. The solar support not only can prevent the solar photovoltaic panel from being stolen, but also can be assembled and disassembled conveniently. The solar support comprises a frame which is used for wrapping the photovoltaic panel, a supporting surface which is used for placing the photovoltaic panel, and supporting columns which are used for supporting the photovoltaic panel and the supporting surface, wherein the cross section of the frame is of the shape of a rectangle with a rightward opening, the internal surface of the frame is bonded on the photovoltaic panel, and a plurality of connecting pieces are arranged on the frame; the supporting surface consists of a plurality of beams, and the connecting pieces of the frame are fixedly arranged on the beams through antitheft bolts; and the supporting surface is fixedly arranged on the supporting columns, and the connection positions of the support are fixed by using antitheft bolts. The method comprises the steps of: using the frame with the cross section which is of the shape of the rectangle with the rightward opening to wrap the edge of the photovoltaic panel, enabling the internal surface of the frame to be attached onto the photovoltaic panel, wherein the connecting pieces are arranged on the frame; and fixing the connecting pieces of the frame onto the beams of the support through the antitheft bolts, and using the antitheft bolts to fix the connection positions of the support.

The invention discloses a photovoltaic module which comprises a plurality of solar battery piece slices, wherein the solar battery piece slices are formed by cutting a solar battery piece along a direction parallel to a main grid line. Meanwhile, the invention further discloses a manufacturing process of the photovoltaic module. The manufacturing process comprises the following steps: welding the solar battery piece, performing laser scribing along the direction parallel to the main grid line of the solar battery piece to form a cutting channel, and slicing the solar battery piece according to the cutting channel; and performing stacking, lamination, framing, wiring box arrangement and test. The photovoltaic module overcomes the technical bottleneck and the bias in the conventional solar field; the solar slicing direction is creatively designed to be parallel to the main grid line, so that on-line production of a slice assembly can be realized, and fragments are reduced; and compared with the yield of a conventional half battery module, the yield of the photovoltaic module is greatly increased.

Systems and methods for providing and controlling solar panel arrays are provided. The solar panel array may include one or more articulating joints that may provide variability in the arrangement of solar panels, which may allow the solar panel array to be distributed over varying types of underlying surfaces. The articulating joints may allow orientations of solar panels to be different relative to one another. The articulating joints may convey rotational force across the joints, so that a rotational force used to drive a first solar panel may also be conveyed across the joint and used to drive a second solar panel. The controls system may include row-specific semi-autonomous, or autonomous, controllers as well as controllers to interface with multiple rows. The controllers may include sensors to measure system power generation and basic operations aspects of the solar field to directly measure, or infer, module shading within the solar field. The controller may use this shading and operations data to identify shading, mitigate shading, identify methods to increase power generation, and identify optimum tilt angles for the tracker rows.

A solar plant including a solar field for production of steam, a turbine using steam, and an excess steam storage and draw off system. The system includes a latent heat thermal storage module and a liquid displacement thermal storage module including a liquid volume and a steam blanket. The modules are connected together so that the steam produced passes through the steam blanket before passing through the latent heat module, condensing, to be injected in the liquid volume, the lower part of the liquid volume being connected to the solar field and to an outlet of the turbine to let in or return cold liquid. The liquid volume acts as a liquid displacement reservoir.

A one-component or two-component silicone formulation including: a) at least one cross-linkable poly(diorganosiloxane); b) at least one oligomeric siloxane as a cross-linker for the poly(diorganosiloxane), wherein the oligomeric siloxane is a condensation product of monomeric silane cross-linkers; and c) at least one functionalized oligo(dimethylsiloxane). The one-component or two-component silicone formulation is suitable as an elastic adhesive or sealant, for example, in the automotive and solar fields, for façade construction, insulation glass, window glass or for construction in general.

The invention discloses an alternating current protection circuit and a system lightning-protection circuit and relates to the solar field. In the alternating current protection circuit, a first end of a first pressure-sensitive unit is connected with a first phase line of three-phase alternating current, and a second end of the first pressure-sensitive unit is connected with a first end of an alternating current grounding unit and a second end of a discharge unit; a first end of a second pressure-sensitive unit is connected with a second phase line of the three-phase alternating current, and a second end of the second pressure-sensitive unit is connected with the first end of the alternating current grounding unit and the second end of the discharge unit; a first end of a third pressure-sensitive unit is connected with a third phase line of the three-phase alternating current, and a second end of the third pressure-sensitive unit is connected with the first end of the alternating current grounding unit and the second end of the discharge unit; a second end of the alternating current grounding unit is grounded; and a first end of the discharge unit is connected with a neutral conductor of the three-phase alternating current. According to the alternating current protection circuit and the system lightning-protection circuit, the neutral conductor N carries out protection through series connection of the discharge unit and pressure-sensitive units, interference and crosstalk of the phase line A, the phase line B and the phase line C on the neutral conductor N are avoided because of low junction capacitance of the discharge unit, and conducted interference of the line N is effectively lowered.

The invention provides a solar energy field multifunctional device which is suitable for solar energy illumination or a power supply device which is in field, can be easily folded, can be moved, is convenient for hanging or is provided with a special device, and can play roles of illumination, deinsectization, monitoring, signal indication, communication, power supply, and the like in the field. The solar energy field multifunctional device comprises a solar energy multifunctional device and a bracket mechanism, and is characterized in that a drill head (6) is fixed on one end of a main rod (2); the main rod (2) is provided with a support machine member; a pointed cone (9) is fixed on the tail part of a support rod; the other end of the main rod (2) is connected with the solar energy multifunctional device (1); the joint of the main rod (2) and a connecting pipe of the solar energy multifunctional device (1) is provided with a core shaft (22); and the connecting pipe of the solar energy multifunctional device (1) is also provided with an installation hole (21) which is convenient for hanging or installing the special device.

The invention achieves an increase in the net electric power supplied to the mains network by solar thermal power stations with cylindrical parabolic collectors, by making efficient use of the solar field, generating steam to drive the main auxiliaries by steam turbines (turbo pumps), reducing the electricity consumption of the auxiliary services and increasing the net electric power. On days when the solar radiation is greater than that for which the system was designed, part of the solar field will not be used because the generator and the turbine would exceed the power level assigned to them. The proposed system uses the unused portion of the solar field to generate steam to drive the main auxiliaries of the power station, energy that would otherwise not be utilized.; In addition, the pumps of auxiliary services are driven more efficiently overall when use is made of steam to drive the pumps via a turbo pump instead of driving them with electric motors (motor pumps).

Provided herein is a floating photovoltaic solar device designed to reduce the effect of wind forces without the use of external control or power. The device includes a floating anchored frame with a means for connecting an internal corded lattice; a corded lattice suspended within the floating frame and forming a set of polygonal cells in which independently floating solar photovoltaic modules are positioned. Access for scheduled and unscheduled maintenance may be provided by a floating service gantry. The system is modular and several devices may be connected in a honeycomb-like structure.

A solar tracker device based on a mechanical technique adapted to synchronously rotate mounted solar panels or mirrors along their approximate main axis, in one or two directions. The device enables building large solar fields with multiple panels or mirrors each rotated along its approximate location of its own main axis by single motor per axis.

An heliostat includes a plane mirror and a first axis of rotation which is positioned parallel to the axis of rotation of the Earth. The solar radiation reflected by the mirror is permanently oriented toward a stationary Fresnel lens which is perpendicular to the first axis of rotation and which concentrates the solar radiation toward a stationary target. A solar field is composed of a plurality of heliostats according to such characteristics and all the first axes of rotation of which are rotated by a mechanical linkage coupled to a rod which is moved by a single motor. This arrangement reduces the total cost of the installation.

A master recombiner box system includes a plurality of input bus bars that receive power from a corresponding combiner box in a solar field. Each input bus bar is coupled with a current transducer, thereby measuring the current of the associated combiner box. Power feeding into the plurality of input bus bars is combined at a recombiner bus bar, which leads to an output bus bar, and ultimately to an external inverter. The current transducers are linked to a control circuit board which utilizes an antenna to send RF signals to a receiver. In this manner individual combiner boxes in a solar field can be monitored wirelessly.

The invention discloses a solar mobile power box, and relates to the solar field. The solar mobile box comprises a box body, an indicator light, a switch, a socket, solar panel wiring, solar panels, an upper button, a supporting foot, a lower button, a wheel, a controller, an inverter and a box cover, wherein, the solar panels are arranged inside the box cover and on the upper surface of the box cover; the supporting foot is arranged at the left side of the box cover; the wheel is arranged at the left side of the box body; the upper button is arranged above the box cover; the lower button is arranged above at the front side of the box body; the controller and the inverter are arranged in the box; the solar panels are connected with the controller and the inverter through the solar panel wiring; and the switch and the socket are arranged at the front side of the box body. The solar mobile power box can provide alternating current for home appliances and outdoor electrical equipment.

The invention discloses a novel solar heat-absorbing material. The material is prepared from the following raw materials in parts by weight: 35-58 parts of ethyleneglycol m-phthalate, 26-35 parts of fatty glyceride, 24-28 parts of polypropylene, 15-20 parts of 2-acrylamido-2-methyl butanesulfonic acid, 12-18 parts of acetic acid,10-16 parts of phenethyl alcohol, 8-12 parts of silicon carbide, 8-12 parts of carbon black, 14-20 parts of paraffin, 12-24 parts of silica sol, 10-15 parts of alkaline hargil, 8-15 parts of a synthesizing agent, 4-8 parts of a light absorbing agent, 2-4 parts of light-absorption accelerant and 3-5 parts of a nucleating agent. The novel solar heat-absorbing material has excellent heat transferring and absorbing performance, can be widely applied to the solar field, and can meet the requirement for current solar power generation heat absorbing materials.

The invention discloses a supplementary power generation system adopting photovoltaic power generation and solar heat energy-gas steam combined power generation. Different types of solar heat collectors are coupled with thermal processes of a power sub-system separately according to the different heat collection grades of the solar heat collectors, and a high-pressure evaporator of a waste heat boiler is replaced by virtue of a grooved solar field; meanwhile, a low-pressure evaporator of the waste heat boiler is replaced by virtue of a heat-pipe vacuum pipe heat collector, a staged ISCC systemis formed, and then coupled with a photovoltaic power generation system; moreover, a running scheduling strategy is designed, and the photovoltaic system is scheduled and complemented by arranging aheat storage device in the ISCC system, so that the long-time stability of the power generation amount of the complementary system is kept while the stable and efficient power generation of the two systems is ensured; and complementation and comprehensive gradient utilization for solar light energy, solar heat energy and fossil energy is realized, the capacity factor of the system is increased, impact on a power grid is reduced, and the stability of the power generation of the system is improved.

A disconnect system for a solar installation shuts down power upstream from an inverter, so that it is safe for solar field personnel to perform work related to a solar installation. The system actuates multiple disconnect devices in one motion by a linkage assembly which can associate 2-4 disconnect switches with a single handle. This system preferably includes hardware and logic for monitoring the current and voltage output of electrically coupled combiner / recombiner boxes in the solar field, and for wirelessly transmitting this data to a user. A single disconnect cabinet can accommodate 2-20 inputs from associated recombiner boxes with 5 handles or less.

The invention relates to a method for in situ coating a tower solar receiver in order to protect the surface of the receiver from corrosion and to increase absorptivity of same, which is carried out in several steps: surface preparation, application of the coating, curing, optional vitrification, and controlled cooling. The surface preparation is done by zones depending on the size of the receiver, a methodology that enables an intercalated application of the coating in order to minimize the risk of corrosion. The curing stage is carried out by supplying steam to the inside of the receiver tubes, and temperature requirements above the operating limits of the boiler are adjusted with the solar field as support system. Vitrification is done using saturated steam traveling through the receiver tubes and concentrating solar radiation on the surface of the receiver from the solar field.

A solar field made up of a plurality of mutually adjacent solar panels and a substantially horizontal visual display associated aerially with at least a portion of the solar panels. The field may include landscaping which forms at least a portion of the display. The solar panels may include differently colored solar cells arranged to form at least a portion of the display. The field may include a plurality of light emitting elements, coupled to at least a portion of the solar panels and controlled to selectively display a visual image.