Solar module with concentrator
SUBSTANCE: solar module with a concentrator consists of a solar radiation receiver and a cylindrical solar concentrator, the reflecting surface of which is formed with rectangular mirror-reflecting plates-facets. Facets are installed so that solar beam L1 lying in the cross-sectional plane of concentrator and having a deviation from target direction to the Sun, which is equal to accuracy of the tracking system, and after it is reflected on the facet edge that is the closest one to the receiver, it falls down to the boundary of concentrated solar radiation zone on the receiver surface, which is located far from it, and width of facets is such that beam L2 that is symmetrical to the first beam L1 relative to target direction falls down to the nearest boundary of concentrated radiation zone after it is reflected on the opposite facet edge.
EFFECT: more uniform distribution of solar radiation along the receiver surface; improving optical effectiveness of a concentrator; increasing average annual power generation and reducing its prime cost.
4 cl, 6 dwg
The invention relates to solar technology, in particular solar energy modules with concentrators to generate electricity and/or heat.
Known technology EUCLIDES, which made line-focusing parabolic trough mirror concentrators for photovoltaic solar power plants with a nominal capacity of 480 kW. Optical efficiency of the concentrator 90% with a precision of Sun tracking ±0,2° (G. Sala, N.B. Mason, et al. "480 kWpeak EUCLIDES Concentrator Power Plant Using Parabolic Troughs", Proc. 2nd World Conf. Delivered PC based machine controllers, Vienna 1998, 1963-8).
A disadvantage of the known technical devices is a significant uneven distribution of solar radiation on the surface of the photovoltaic receiver, which can lead to local overheating, increase in ohmic losses and, ultimately, reduce the rated power of the module (A. Luque, G. Sala, J.. Arboiro "Electric and thermal model for non-uniformly illuminated concentration cells", Solar Energy Materials and Solar Cells 51 (1998), 269-290).
Closest to the proposed device is a photovoltaic module solar concentrator company Poulek Solar Ltd., the reflective surface of which consists of a flat mirror facets of the same width along the profile parabolically - solar concentrator TRAXLE 5X (www.solar-trackers.com).
Known technical solution (prototype) in comparison with the known analog increases the t of the uniformity of solar radiation on the surface of the receiver.
The main disadvantage of the prototype with the solar concentrator formed of a flat mirror facets, located on the profile of the parabola, is the low optical efficiency of the concentrator due to the replacement of the optically effective surface of parabolicity flat rectangular mirror facets, the result of the sun's rays reflected from the facet, passes by the receiver.
The task of the invention is to obtain on the surface of the receiver more uniform illumination while maintaining the high optical efficiency of the mirror system. The above technical result is achieved by the fact that in the solar module with the hub that contains the receiver of solar radiation and cylindrical solar concentrator, the reflective surface of the hub is formed of a rectangular mirror plates facets that are installed so that the solar beam L1 lying in the plane of the cross-section of the hub and going with a deviation from the target direction to the Sun is equal to the accuracy of the tracking system and, after reflection at the near to the receiver edge facets, gets to far from her border set on the plane of the receiver area of concentrated solar radiation, the beam L2, symmetrical to the first beam L1 relative to the sighting direction,reflected from the same edge facets, adjudged to be in an area of concentrated solar radiation, and the width of the bezel such that the beam L2 after reflection on the opposite edge of the facets, gets to near the border of the zone of concentrated radiation in the plane of the receiver.
While coming to the receiver facets are installed so that the solar beam L1 before you get to closest to the receiver edge facet passes through the edge of the sink.
In a variant of the design of the solar module photovoltaic receiver electrically connected in series only solar cells, the centers of which lie on one straight line parallel to the generatrix of the cylindrical solar concentrator, and each series of series-connected solar cells contains a blocking diode.
The invention is illustrated figure 1, 2, 3, 4, 5 and 6.
Figure 1 shows the cross-section of the solar module to the hub.
Figure 2 presents the scheme of passage of sunlight.
Figure 3 shows a case where the placement of mirror facets, which are the closest to the receiver of solar radiation.
4 shows the electrical circuit of the photovoltaic receiver of series-connected solar cells with blocking diodes.
Figure 5 presents the calculated profile (cross section) symmetric solar concentrator with 5X given what acestu Sun tracking ±5°.
Figure 6 presents the calculated profile (cross section) of the asymmetric solar concentrator 10X with precision Sun tracking of ±0.1°.
Solar module with the hub (figure 1) consists of a receiver of solar radiation 13 and cylindrical solar concentrator, the reflective surface of which is formed a rectangular mirror plates facets 1-12 (n).
The facets are installed so that the solar beam L1 (2), lying in the plane of the cross-section of the hub and going with a deviation from the target direction on the Sun 14 equal precision servo system and, after reflection at the near to the receiver edge facet And falls far from its border With the area of concentrated solar radiation CD, and the width of the bezel such that the beam L2, symmetrical to the first beam L1 relative to the sighting direction 14, after reflection on the opposite edge of the facets In falls on the near border of the D zone concentrated radiation in the plane of the receiver.
Next to the sink facet 1 (figure 3) mainly installed so that the solar beam L1 before you get to closest to the receiver edge facet M passes through the edge of the receiver F.
In a variant of the design of the solar module photovoltaic receiver 13 (figure 4) electrically connected in series then what are the solar cells 15, the centers of which lie on one straight line parallel to the generatrix of the cylindrical solar concentrator 17, and each series of series-connected solar cell 15 contains a blocking diode 16.
Solar module with the hub operates as follows.
The beam L1 (figure 2), followed by the deviation from the target direction on the Sun 14 equal precision tracking system and coming to the edge And the mirror facets, after reflection falls on the far border set on the plane of the receiver 13 zones of concentrated solar radiation CD. When the offset direction of the solar beam from L1 to L2 (the other border of the maximum deviations from the target position), the reflected beam is displaced along the surface of the receiver to him near the edge, but not beyond the specified area of the concentrated solar radiation CD, because the width of the facets AB is such that the beam L2, even reflecting on its opposite edge, hits the boundary of the set area D.
In turn, the sun's rays in the range of lines L1-L2, reflected on the edge of the facets In the move, following the angle of incidence, to the far edge of the receiver 13, but not moving for a given border, as the maximum displacement of the reflected beam corresponds to the direction L1, and this beam reaches the extreme boundaries of the specified area With only affecting across the lagoon to the false edge facet A.
Thus, any deviations from the sun's rays from the sighting position reflected from the facet beams do not extend beyond the specified area of concentrated solar radiation CD on the surface of the receiver 13.
The calculated profiles of solar modules with faceted cylindrical hubs for a given concentration factors, the size of the receiver and precision of Sun tracking.
Figure 5 presents the calculated profile is symmetric solar concentrator with a geometric concentration ratio of 5 and precision Sun tracking ±5°.
Figure 6 - asymmetrical solar concentrator with a geometric concentration ratio of 10 and given the tracking accuracy of ±0.1°. The plane of the receiver is rotated relative to the sighting direction (in this case, the angle 75°) to reduce the average angle of incidence of reflected sunlight on its surface, which increases the optical efficiency of the radiation detector.
The table shows the width of each mirror facet and angle relative to the sighting direction. Width successor in solar module with symmetrical concentrator (figure 5) is equal to 540 mm, and in the module with unbalanced (6) - 270 mm
The geometry of the reflector depends, inter alia, from the given precision of Sun tracking and the higher it is, the more equal is most lighting radiation detector - when precision tracking higher of ±0.1° coverage receiver almost evenly, which will be used as a receiver not only thermal collectors and photovoltaic cells without reducing the efficiency and without the risk of formation of hot spots and local overheating.
In addition, the application of the developed solar concentrator can improve the optical efficiency of the module by 20-30% compared to the prototype.
|The number plate||The concentration of 5X Y=1617 mm; X=128 mm||Concentration 10X Y=2183 mm; X=258 mm|
|Insert width, mm||The angle of inclination, degrees||Insert width, mm||The angle of inclination, degrees|
The proposed device can be implemented in solar systems to generate electricity and/or heat.
1. Solar module with a hub that contains the receiver of solar radiation and cylindrical solar concentrator, wherein the reflecting surface of the hub is formed of a rectangular mirror plates facets that are installed so that the solar beam L1 lying in the plane of the cross-section of the hub and going with a deviation from the target direction to the Sun is equal to the accuracy of the servo system α, after reflection at the near to the receiver edge facet gets to far from her border set on the plane of the receiver area of concentrated solar radiation, the beam L2, symmetrical to the first beam L1 relative to the sighting direction, reflected from the same the edges of the facets, is adjudged to be in an area of concentrated solar radiation, and the width of the bezel such that the beam L2 after reflection on the opposite edge of the facets, gets to near the border of the zone of concentrated solar radiation in the plane of the receiver.
2. Solar module with a hub according to claim 1, characterized in that next to priem the ku facets set what is solar beam L1, before you get to closest to the receiver edge facet passes through the edge of the sink.
3. Solar module with a hub according to claim 1, characterized in that the photoelectric receiver electrically connected in series only solar cells, the centers of which lie on one straight line parallel to the generatrix of the cylindrical solar concentrator, and each series of series-connected solar cells contains a blocking diode.
SUBSTANCE: power supply device comprising several energy panels (1) made in the form of roof tiles, which cover a part of a building and which contain an energy module (300) serving to absorb solar energy, which is connected with a power supply line (33). In accordance with the invention on one of external sides of the building there is at least one metal pipeline (4), where energy panels (1) are installed, which are mechanically and thermally connected with the pipeline (4), where there is a cable channel (47) serving to locate the power supply line (33) and at least one channel (41, 42) for passage of liquid heat-transmitting medium (45), with the help of which thermal energy is transferred from the energy panel (1) to a consumer (400) of thermal energy. Also an energy panel and roof tiles are proposed, comprising the above power supply device.
EFFECT: improvement of a device.
16 cl, 13 dwg
SUBSTANCE: photovoltaic device (10) having flat photovoltaic cells (12) which, when solar radiation (S) falls on the upper side, generate electric power which is transmitted into an electric network (14) and/or to an electric accumulator, characterised by that under each photovoltaic cell (12), there is a cooling battery (20), which is linked through the circulation loop of a heat pump with a first heat pump, wherein the cooling battery (20) feeds process heat, released during operation of the photovoltaic cell (12), to the first heat pump; the first heat pump is linked to the first circulation loop (22) for circulating carrier medium containing a first carrier medium; in the first circulation loop (22) for circulating the carrier medium there is a heat-accumulating unit (24) containing a heat-accumulating medium, wherein heat energy of the first carrier medium inside the heat-accumulating unit (24) is transmitted by the heat-accumulating medium, and at least one other circulation loop (30) of the heat consumer, which contains a second carrier medium, is linked with the heat-accumulating unit (24), and heat energy of the heat-accumulating medium, if needed, is transmitted to the second carrier medium of said other circulation loop (30) of the heat consumer.
EFFECT: improved efficiency of the photovoltaic device.
7 cl, 2 dwg
SUBSTANCE: coating tiles for structures (17) of a roof and walls of buildings, comprising: an upper element (13), comprising a convex section, having an inner surface (14), processed so that it reflects light, at the same time the upper element (13) is covered with one or more photoelectric elements, a base (6), manufactured with a reflecting plate (2), covering a thermally insulating element (16), having a concave section in accordance with the convex section of the upper element (13), at the same time the above convex section of the upper element (13) and the above concave section of the reflecting plate (2), form a cavity (18), where hothouse effect is produced, when tiles are exposed to solar radiation, this radiation is absorbed by a main tube (15), arranged inside the cavity (18) in accordance with the centre of the convex section of the upper element (13), the base (6), which is arranged with lower supports (10) so that the element could be supported with the help of supports (10) on the structure (17) and form an air and a ventilation chamber (5). Also a system is proposed to cover structures (17) of a roof and walls of buildings.
EFFECT: invention covers in accordance with the invention are arranged as fully compatible with environment with the help of selecting a proper tile type depending on location and meeting esthetic demand and water tightness requirements.
13 cl, 7 dwg
SUBSTANCE: method of producing photoelectric and thermal type combined solar panels (10), comprising steps for producing a thermal panel (12), having at least one flat side (26b); producing a photoelectric panel (11) designed for combination with said heat panel (12) through the said flat side (26b) and having at least one section of photoelectric elements and a transparent sheet (15); a step for producing a photoelectric panel (11), comprising steps for depositing a certain number of adhesive spots respectively between the said flat side (26b) and the said at least one section and between the said at least one section and the said sheet (15), so as to form a combined module with a plurality of peripheral lateral sides; putting a transparent resin between the said flat side (26b) and the said at least one section and between the said at least one section and the said sheet (15). The combined solar panel (10) has a thermal panel (12), having at least one flat side (26b); a photoelectric panel designed for combining with the said thermal panel (12) through the said flat side (26b) and having at least one section which includes a plurality of connected photoelectric elements and a transparent sheet (15). The panel has a certain number of adhesive spots respectively between the said flat side (26b) and the said at least one section and between the said at least one section and the said sheet (15); a transparent resin between the said flat side (26b) and the said at least one section and between the said at least one section and the said sheet (15). The method solves problems arising from the presence material which is liable to hardening (polymerisation) between the thermal panel and the elements and between the elements and the sheet provided by the current level of technology. The invention also relates to a solar panel (10) made using the disclosed method.
EFFECT: high efficiency.
12 cl, 6 dwg
SUBSTANCE: proposed solar energy sourcing power supply system consists of solar cell battery, electrolyte feed unit, electrolyte recirculation unit, hydrogen recirculation unit, fuel cell, heater unit and energy controller. Electric energy production is due primarily to actuation of the electrolyte feed device that injects electrolyte into the solar cell battery. The electrolyte is a mixture of water and a photocatalyst. The solar cell battery produces luminous or thermal energy for electric power generation. Water steam and gaseous hydrogen are generated and circulated through the electrolyte recirculation unit and the hydrogen recirculation unit. In case of light and/or water unavailability continuity of the electric power generation process is enabled due to the recycling hydrogen being fed into the fuel cell and the heater unit supplying the solar cell battery with the thermal energy required. Electric current produced by the solar cell battery and the fuel element is regulated via the energy controller to provide for it complying with the electrical energy generation specifications and render it fit for the end usage intended.
EFFECT: provision for uninterrupted round-the-clock power supply.
17 cl, 6 dwg
FIELD: power engineering.
SUBSTANCE: in the method to manufacture a reflecting device of a solar station including web rolling, its installation into the body of the reflecting device and its further tensioning with a force determined in accordance with the empirical formula:
EFFECT: reduced mass and cost of a reflecting device due to reduction of mass and cost of a reflecting element through usage of a metal tape with smaller thickness as the base.
FIELD: power engineering.
SUBSTANCE: design of a flexible photoelectric module represents the following serially arranged components: a lower bearing film, a lower reinforcing layer, a lower fastening film, electrically connected solar elements, an upper fastening film, an upper reinforcing layer and an upper bearing film. The lower and upper bearing and fastening films are made of material, which is transparent for sun light. Reinforcing layers are perforated films from anti-adhesive material, which are transparent for sun light, or which are coated with a layer of an anti-adhesive material, where perforation is arranged in the form of regularly arranged holes.
EFFECT: provision of reversible deformation of a photoelectric module plane simultaneously in two and more directions.
SUBSTANCE: solar concentrator module, according to the invention, has a receiver with a double-sided working surface, placed in the plane of symmetry between the focal axis of the concentrator and the surface of the concentrator, which is made in form of mirror reflectors, characterised by that the receiver is mounted in the plane of symmetry of a cylindrical concentrator; branches of the concentrator in the cross-section are formed by circles of radius R, which is equal to the height H of the receiver with centres at points O1 and O2, lying on the borders of the receiver in its top edge; wherein focal axes of the branches of the cylindrical concentrator, passing through the centres of circles O1 and O2 parallel to the top edge of the receiver, are directed in the North-South direction and are inclined in the northern hemisphere to the horizontal plane in the southern direction at an angle φ=90°-α, where α is the latitude. In the southern hemisphere, focal axes are inclined to the horizontal surface in the northern direction at an angle φ=90°-α and in the equator zone with a latitude from 30° of the southern latitude to 30° of the northern latitude, the focal axes of the cylindrical concentrator are parallel to the horizontal surface. Another version of the solar concentrator module described above is also disclosed.
EFFECT: invention provides efficient operation of the solar module during the entire daylight in stationary mode without tracking the sun, high concentration of solar radiation, high efficiency of using solar energy n the solar concentrator module owing to removal of heat from the photodetector and use of said heat in cogeneration mode to produce electrical energy and heat.
6 cl, 4 dwg
FIELD: power engineering.
SUBSTANCE: in a solar concentrator they carry out separately simultaneous stepwise heating of water steam and its mixture with a methane-containing gas, which is then sent to a reaction of steam catalytic conversion of the methane-containing gas into a sectioned catalytic reactor, installed outside the solar concentrator, the flow rate of water steam and its mixture with the methane-containing gas is reduced as the solar energy flow is reducing.
EFFECT: using this method makes it possible to reduce thermal costs for the process of energy resources generation and also to efficiently supply various energy resources under conditions of unavailability of methane sources, and also in the period of solar energy flow reduction at night time and when cloudiness increases.
8 cl, 1 dwg
SUBSTANCE: solar wind-driven air heater includes a solar thermal header, a cylindrical housing with a cover plate, in which an electric generator is installed on a vertical shaft, which is connected from above through a coupling to a power shaft, and air pipelines attaching the header and the housing to the unit. The header includes a housing in the form of a case with two transparent coatings, side walls and a base, as well as a channel arranged between bottom coating and a heat receiving plate, in which two or more thermal electric heaters with wing membranes are installed, which are electrically connected through wires, a distributing board with an electric generator fixed on a cross piece, above which an impeller is fixed on the power shaft, and from below on the shaft there installed is an impeller arranged in central part of the frame, which is connected via an air pipeline to lower part of the header, and upper part of the heater is pneumatically interconnected with the unit via air pipelines enveloping the housing on both sides, in which thermal coil electric heaters are installed, via wires, the distributing board, which are electrically connected on the side of the frame; the housing pneumatically interconnected from above with atmosphere through holes in the cover plate, above which there installed is a movable disc with holes made concentrically as in the cover plate.
EFFECT: combination of air heating equipment and its movement by means of solar and wind energy.
FIELD: engines and pumps.
SUBSTANCE: chemical thermal pump comprises reactor section including active body and evaporator/condenser section including portion of volatile fluid existing in condensed state and can be absorbed by active body. Reactor section is communicated with evaporator/condenser section via channel. For heating purposes, reactor section side wall is composed of solar energy collector or stays in direct contact herewith. Reactor section comprises mould for active body. The latter stays in contact with said side wall. Active body in both solid state and fluid state or in solution phase is retained by mould and/or coupled therewith. Porous material permeable for volatile fluid is contained in evaporator/condenser section at, at least, part of its surface. Mould and permeable material may be arranged as concentric layers with spacing there between aforesaid channel is arranged.
EFFECT: higher efficiency, compact design.
33 cl, 24 dwg
SUBSTANCE: solar concentrator photoelectric apparatus has concentrator photoelectric modules (2) mounted on a mechanical system, azimuthal and zenithal drives located in an electromechanical box and a system for alignment of the concentrator photoelectric modules (2) towards the sun with a solar sensor. The mechanical system is formed by a base frame (3) and at least two suspended frames (4). The base frame (3) is adapted to turn about the vertical axis on a base ring (1) through wheels (5). Two wheels (5) are provided with sections of a roller chain which are engaged with toothed gears mounted on faces of two horizontal oppositely rotating output shafts (8) of the bevel gear speed reducer of the azimuthal electric drive mounted on the base frame (3). Each suspended frame (4) with concentrator photoelectric modules (2) is mounted to a horizontal pipe which is adapted to rotate on supports mounted to the base frame (3) and is pivotally connected by levers and bars to neighbouring suspended frames (4). One of the suspended frames (4) is provided with two vertical circular sectors separated on sides, circular surfaces of said sectors being attached to sections of the roller chain which are engaged with the toothed gears mounted on the horizontal shaft of the reducer of the zenithal electric drive mounted on the base frame (3). The distance L between the horizontal pipes of neighbouring suspended frames (4) satisfies a certain relationship.
EFFECT: high unit power of the photoelectric apparatus while keeping a sufficiently simple design.
FIELD: power engineering.
SUBSTANCE: solar power plant comprises a solar battery assembled from concentrator photoelectric modules, installed on a mechanism system of orientation at the Sun, comprising drives of zenithal and azimuthal rotation equipped with step motor gears. The novelty in the plant is the fact that photoelectric modules contain linear photodetectors arranged in foci of cylindrical Fresnel lenses, and at the sides of the long side of photodetectors, close to them, at the angle, there are reflectors arranged, drives are controlled by a microprocessor that contains information on a geographic latitude of plant location and electronic clock equipped with a calendar, by signals of which, at regular intervals, step motor gears are started, which rotate the solar battery by zenithal and azimuthal angles, in accordance with the equation of Sun motion on the horizon, at the same time values of achieved zenithal and azimuthal angles are determined with the help of appropriate sensors, and their values are compared to values produced from the equation of Sun motion at the current moment of time.
EFFECT: invention shall simplify a system of Sun tracking.
SUBSTANCE: solar module has a chassis, solar cells, structured glass and a textured reflecting panel with a geometric relief. Structural features of the solar panel are that the solar cells have double-sided sensitivity and are placed with spacing perpendicular to the structured glass, and the textured reflecting panel with a geometric relief is placed behind the solar cells. Placing the solar cells perpendicularly increases electric power generation and enables to stabilise their temperature conditions.
EFFECT: increase in active area of the solar module with simultaneous increase in efficiency.
FIELD: power engineering.
SUBSTANCE: heat tube system of solar power saving of a building comprises a solar collector, comprising a box, the cover of which is coated from inside with a grid from strips of a porous material, equipped with steam and condensate nozzles, inside of which there are lifting wicks, connected to the grid from strips of the porous material, and a collector wick closed with shells having gaps at the cover and connected with lower edges with a jacket closing the collector wick, connected by steam lines and a condensate line with an ejector, a condenser, heat and power accumulators, an evaporator. The solar collector box cover from outside is coated with photoelectric cells, in boxes of the solar collector and cooling panels, the side walls are coated from inside with the grid from strips of the porous material, on the bottom of above boxes there are collector wicks laid, jackets of which are coated with the grid from strips of the porous material, shells of lifting wicks are arranged with gaps in the form of triangular slots on upper edges connected with covers of boxes, the condenser is arranged in the form of a shell and tube heat exchanger and is connected with a network of hot water supply of a building and a heat accumulator arranged in the form of a hot water tank, the evaporator is made in the form of cooling panels arranged in the upper area of the cooled room, below which there are axial fans arranged, the condensate line is a pipeline filled with a wick and connected to collector wicks of the solar collector and cooling panels, and photoelectric cells of the solar collector are connected with an electric line to the electric network of the building and the electric accumulator.
EFFECT: increased efficiency and reliability of a heat tube system of solar power supply to a building.
FIELD: power engineering.
SUBSTANCE: plant has a circuit for circulation of working fluid. The circuit comprises steam generator provided with branch pipes for supplying fluid and discharging steam, steam turbine combined with the electric generator, regenerative heater with branch pipes for supply and discharge of heating and heated fluids, circulation pump for pumping fluid, circuit for circulation of heat carrier tank for exhaust heat carrier, and circulation pump for heat-transfer agent. The solar receiver is made of independent sections interconnected in parallel. The heat carrier circulation circuit is provided with pressure vessel.
EFFECT: enhanced serviceability and simplified design.
5 cl, 1 dwg
FIELD: solar power engineering.
SUBSTANCE: solar power plant includes solar battery having at least two solar heat collector mutually joined through branch pipe. Said collectors are provided with individual heat pickups and individual pipelines for discharging hot water out of them through connection branch pipes. Shut-off devices are mounted in zones of crossing of branch pipes and pipelines. Pipeline for supplying water from accumulating tank to solar battery includes water pump; accumulating tank includes two heat exchangers of different volumes. Heat exchanger of large volume is designed for water used for heating; heat exchanger of small volume is designed for water used for domestic purposes. Solar heat collector includes transparent panel; heat absorbing panel in the form of set of parallel metallic tubes for liquid heat transfer agent connected with lower surface of metallic radiant-energy absorbing sheet; heat insulation layer and supporting heat insulation panel. Parallel metallic tubes of heat absorbing panel are pressed-in to metallic radiant energy absorbing sheet, they are arranged along short sides of said sheet and mutually connected by means of tubes arranged along long sides of sheet. Supporting heat insulation panel, heat insulation layer, heat absorbing and transparent panels are fluid-tightly connected one to other for forming rigid structure construction, for example with use of bolts. On upper and lower surface of said construction along its perimeter metallic or polymeric shapes are mounted.
EFFECT: enhanced efficiency of using solar energy.
17 cl, 3 dwg
FIELD: power engineering.
SUBSTANCE: solar power plant comprises concentrator, receiver of solar radiation, and accumulator. The concentrator is made of a transparent sphere filled with a transparent liquid for concentrating the light beam at the receiver of solar beams. The heat accumulator is provided with a coil.
EFFECT: enhanced reliability, simplified structure, and reduced cost.
FIELD: solar wind power engineering.
SUBSTANCE: heater comprises electric generator with wind wheel, tail beam of rectangular cross-section, shaft, and tail assembly which is composed of two or more rhomboid panels provided with photoelectrical transducers from their sides. The ring water accumulator is mounted in the bottom section of the shaft and connected with the photoelectrical transducers. The rectangular water accumulator is connected with the electric generator. The cells filled with a heat accumulating agent are connected with the electric heaters mounted inside the accumulators. The temperature of phase transition of the agent should be within the range of operation temperatures of the accumulators.
EFFECT: enhanced efficiency.
1 cl, 1 dwg
FIELD: development of power plants using solar energy.
SUBSTANCE: proposed method depends on conversion and storage of solar energy including generation of heat energy used to set air in rotary motion within solar collector wherein air ducts are organized, disposed in parallel, and connected in series with motion of energy-saturated air flow. Each of such ducts accommodates group of local tilted surfaces whereon sun rays are incident through light-translucent heat-insulating material, and controlled heat fluxes of process working medium conveyed from solar energy converters and accumulators of various types and potential levels are at the same time supplied to these ducts. In the process temperature irregularities occur within solar collector and its air ducts with the result that steady revolving air flows are set up both along air ducts and in their sectional areas, as well as in surface areas encouraging turbulent vortex motions.
EFFECT: enhanced power generation ensured by proposed method.
3 cl, 4 dwg