EP4028499A2 - Lichtsammelpaneel - Google Patents
LichtsammelpaneelInfo
- Publication number
- EP4028499A2 EP4028499A2 EP20799617.4A EP20799617A EP4028499A2 EP 4028499 A2 EP4028499 A2 EP 4028499A2 EP 20799617 A EP20799617 A EP 20799617A EP 4028499 A2 EP4028499 A2 EP 4028499A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- light
- light collecting
- collecting panel
- elements
- tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 239000002184 metal Substances 0.000 claims abstract description 52
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
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- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 description 2
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M21/00—Bioreactors or fermenters specially adapted for specific uses
- C12M21/02—Photobioreactors
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/20—Material Coatings
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/22—Transparent or translucent parts
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M23/00—Constructional details, e.g. recesses, hinges
- C12M23/46—Means for fastening
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M31/00—Means for providing, directing, scattering or concentrating light
- C12M31/02—Means for providing, directing, scattering or concentrating light located outside the reactor
- C12M31/06—Lenses
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M31/00—Means for providing, directing, scattering or concentrating light
- C12M31/08—Means for providing, directing, scattering or concentrating light by conducting or reflecting elements located inside the reactor or in its structure
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/06—Means for regulation, monitoring, measurement or control, e.g. flow regulation of illumination
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/06—Means for regulation, monitoring, measurement or control, e.g. flow regulation of illumination
- C12M41/10—Filtering the incident radiation
-
- C—CHEMISTRY; METALLURGY
- C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- C12M—APPARATUS FOR ENZYMOLOGY OR MICROBIOLOGY; APPARATUS FOR CULTURING MICROORGANISMS FOR PRODUCING BIOMASS, FOR GROWING CELLS OR FOR OBTAINING FERMENTATION OR METABOLIC PRODUCTS, i.e. BIOREACTORS OR FERMENTERS
- C12M41/00—Means for regulation, monitoring, measurement or control, e.g. flow regulation
- C12M41/12—Means for regulation, monitoring, measurement or control, e.g. flow regulation of temperature
- C12M41/18—Heat exchange systems, e.g. heat jackets or outer envelopes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/12—Light guides
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02S—GENERATION OF ELECTRIC POWER BY CONVERSION OF INFRARED RADIATION, VISIBLE LIGHT OR ULTRAVIOLET LIGHT, e.g. USING PHOTOVOLTAIC [PV] MODULES
- H02S20/00—Supporting structures for PV modules
- H02S20/30—Supporting structures being movable or adjustable, e.g. for angle adjustment
- H02S20/32—Supporting structures being movable or adjustable, e.g. for angle adjustment specially adapted for solar tracking
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S21/00—Solar heat collectors not provided for in groups F24S10/00-F24S20/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S23/00—Arrangements for concentrating solar-rays for solar heat collectors
- F24S23/30—Arrangements for concentrating solar-rays for solar heat collectors with lenses
- F24S23/31—Arrangements for concentrating solar-rays for solar heat collectors with lenses having discontinuous faces, e.g. Fresnel lenses
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/40—Solar thermal energy, e.g. solar towers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/52—PV systems with concentrators
Definitions
- the invention relates to a light-collecting panel comprising a frame in which a number of light-collecting elements arranged next to one another, in particular in a plane, and a number of light guides corresponding to the number of light-collecting elements are arranged, with each light-ammelelement being assigned a light guide and each light guide in each case a holding element is held at a distance from the light ammeletti.
- the invention further relates to a biomass cultivation system comprising at least one tank for receiving the biomass and at least one lighting system which is linked to the tank, the at least one lighting system having at least one light supply element.
- DE 102007 018 675 A1 describes a biomass cultivation system with a container for receiving biomass-containing aqueous solution, with at least one light guide led into the container for supplying light energy to the biomass-containing aqueous solution, and with a controllable light guide that can be used with the light guide
- Light supply is coupled into selected areas of the container, the container being divided into segments, each of which has light emitting surfaces that can be optionally coupled to the light guide via the light distributor, the light guide with a unit for collecting sunlight and guiding the captured solar energy into the light guide is coupled, and a control unit for controlling the light distributor is provided, which is set up to distribute the light outputs available in the light guide to the Lichtab radiant surfaces in such a way that an additional supply of a further Lichtab radiant surface takes place when the with Lichtl
- At least one light-emitting surface supplied by the light guide is supplied with an illuminance required for a significant increase in the mass of the biomass and further light output is available in order to also supply the additional light-emitting
- WO 2015/192159 A1 describes a solar lens panel with a plurality of light collecting elements arranged next to one another, each light collecting element being assigned a light guide and each light guide being arranged within a holding element and held by it.
- the present invention is based on the object of creating an improved solar lens panel of the type mentioned at the outset or an improved biomass cultivation system.
- the object of the invention is achieved in the aforementioned light collecting panel in that the holding elements are held by a metal plate.
- the object of the invention is achieved by the biomass cultivation system mentioned at the beginning, which comprises such a light-collecting panel.
- the advantage is that the use of a metal plate for holding the holding elements not only provides the function of the holding device itself, but also effective cooling for the optical system of the light collecting panel can be achieved.
- the metal plate also offers improved stability of the light collecting panel, in particular better torsional rigidity, and a better connection to the metal frame of the light collecting panel.
- the structure of the light collecting panel can thus be simplified so that the biomass cultivation system equipped with it can also be produced more cheaply.
- the metal plate consists of a metal or a metal alloy which has a thermal conductivity at 20 ° C. of at least 200 W / (mK). Rapid heat dissipation and thus an improvement in the cooling effect of the metal plate can thus be achieved.
- the faster heat dissipation means that a heat distortion in the metal plate can be better avoided, so that errors in the focusing of the sunlight into the light-guiding elements which are based on this can be avoided or reduced.
- the metal plate consists of aluminum or an aluminum alloy, since this not only allows the improved cooling performance to be provided, but also the overall weight of the light collecting panel can be reduced.
- the internal structure is better adapted to environmental influences, since, for example, condensation, which can possibly be formed, does not cause any corrosion problems on the metal plate, which in turn can negatively influence the mounting of the holding elements and, as a consequence, the light-emitting elements.
- the metal plate has a white layer at least on the surface facing the light-emitting elements.
- This light layer enables a higher degree of reflection of the incident sunlight to be achieved, which means that the heating or overheating of the system can be additionally reduced.
- the frame of the light collecting panel also preferably consists of a metal or a metal alloy.
- the frame is made of a metal or a metal alloy, of which the metal plate is also made.
- the Hal teimplantation on the surface facing the light ammeletti are partially provided with a rounding or open areas according to the open area technology. Due to the partial rounding or open spaces of the surface of the holding elements facing the sunlight, any slight shifts in the optical system can be compensated and the focus point can be held centrally on the light entry surface of the respective light guide. Sunlight can therefore still be correctly focused and thus used even if it deviates from the target axis, i.e. if (the) light collecting elements are not exactly aligned with the sun.
- the holding elements can be made cylindrical at least in the area of the metal plate and aufwei sen a circumferential web with which they rest on the metal plate, which simplifies the production of the system, resulting in lower system costs.
- the holding elements have a receiving channel for the associated light guide on the side facing away from the light-emitting elements, the receiving channel being formed by a combination of a truncated cone to which a cylinder adjoins. Due to the frustoconical design of part of the receiving channel, a better displacement of excess adhesive can be achieved when the light guides are glued to the holding elements.
- the light guides are glued to the holding elements exclusively in the area of the truncated cone, where the area of light coupling into the light guide can be avoided by the adhesive.
- the yellowing of the adhesive as a result of solar radiation can thus also be better prevented or yellowing does not interfere with the coupling of the light into the light guide.
- the invention also relates to a sensor for determining the light output of a light source, comprising a measuring arrangement with a measuring element for detecting at least one parameter of at least one luminous flux entering the measuring arrangement, at least one light guide element and / or at least one connection element for a light guide element, and at least one Electronic assembly for processing the light parameters recorded by the measuring element.
- the invention further relates to a tracking system for a light collecting panel comprising at least one drive for adjusting the position of the light collecting panel relative to the sun, the tracking system further comprising at least one sensor with which at least one parameter of the sunlight is determined.
- the invention relates to a light collecting panel with a tracking system for Nachstel ment of the relative position of the light collecting panel to the sun.
- the invention also relates to a method for aligning and tracking a light collecting panel to the position of the sun by means of a tracking system.
- the present invention is also based on the object of improving the sunlight yield of a light collecting panel, in particular for illuminating a tank of a biomass cultivation system.
- This object of the invention is achieved in the sensor mentioned at the beginning in that the measuring arrangement comprises a hollow body with flat side surfaces, the hollow body having a diffusely reflective inner surface, and the measuring element being arranged in the hollow body.
- the object of the invention is also achieved with the tracking system mentioned at the outset, in which the sensor is designed according to the invention.
- the object of the invention is achieved with the light collecting panel mentioned at the beginning, in which the tracking system is designed according to the invention.
- the object of the invention is achieved by the biomass cultivation system mentioned at the outset, in which the at least one light supply element has at least one light collecting panel according to the invention.
- the object of the invention is also achieved by the aforementioned method for aligning and tracking a light collecting panel to the sun's position by means of a tracking system, the method comprising the following steps: a) Determining “zero” positions of the light collecting panel by determining its elevation and its azimuth through the tracker by means of limit switches and with a sensor according to one of claims 1 to 4 and transmission of this data to a data processing system; b) Determination of the position of the sun given by the date and time by the data processing system and transmission of this data to the tracking system; c) Moving the light collecting panel to the specified position using this data; d) Change the position of the light collecting panel to the sun in an Winkelbe rich between 0.1 0 and 5 0 and determining the azimuth and elevation of the light collecting panel until the highest achievable light output is determined in the sensor and calculation of the deviation from the mathematical one Position; e) realignment of the light collecting panel on the basis of the deviation thus determined by adding this deviation to the original mathematical position;
- the advantage is that the sensor achieves a tracking accuracy of 0.05 °. This accuracy is around a factor of 20 above currently available commercial tracking sensors.
- the system and the method enable a practically permanent, extremely precise tracking of a light collecting panel or a photovoltaic module to the actual sun path.
- the sensor has no moving parts and the system can be mounted completely isolated from external environmental influences. Due to the diffusely reflective inner surface of the hollow body, there is no directional dependence of the incident sunlight or the sunlight coupled into the hollow space, so that the parameter of the light to be determined can be determined in a direction-independent manner.
- the procedure and the tracking system can therefore be self-learning. It is thus an at least approximately exactly 90 0 of the panel or module accessible to the incident sunlight and obtainable.
- the sensor can be used to compensate for minimal construction tolerances of modules equipped with it.
- the measuring arrangement has at least three, in particular at least six, light guide elements and / or at least three, in particular at least six, connection elements for light guide elements.
- the measuring element has at least one photodiode, for example is formed by a lux meter chip.
- a metrologically robust and generally compact design of the sensor is thus possible.
- the electronic assembly has a data processing unit. It is therefore possible to process data in the sensor itself, which means that the computing power required by the individual system components can be reduced. This in turn enables faster tracking of light collecting panels or photovoltaic modules of a system with several such elements. This also makes it easier to control the panels or modules of several systems at different locations.
- the tracking system has a data processing system with a memory, with data on the position of the at least one sensor or, in the case of more than one sensor, data in the memory are stored for the position of each individual sensor, and that further data relating to the date and time of the sun at the installation site of the light collecting panel and possibly the starting position of the at least one drive are stored.
- the tracking accuracy and the self-learning effect can thus be improved.
- correction values for azimuth and elevation are determined with the sensor at predefined intervals and these values are superimposed on an ephemeris curve stored in the data processing system, thus further improving the tracking accuracy of the light beam panel or the photovoltaic module s can be achieved.
- the invention further relates to a lighting element comprising a first tube with a first and a second end, with at least one connection for a light source being arranged at the first end, and the tube at least partially made of a transparent material, and with the lighting element being an outer one Has surface.
- the invention further relates to a biomass cultivation system comprising at least one tank for receiving the biomass and at least one lighting system which is linked to the tank, the at least one lighting system having at least one lighting element.
- the present invention is also based on the object of creating an improved lighting element of the type mentioned at the beginning or an improved biomass cultivation system.
- this object of the invention is achieved in that the tube is filled with a transparent liquid.
- the object of the invention is achieved by the biomass cultivation system mentioned at the beginning, which comprises such a lighting element.
- the first tube is surrounded on the outside by a further tube which has a first and a second end and which forms the outer surface of the lighting element instead of the first tube.
- the lighting element is therefore better adapted to use in more aggressive and / or moving media, such as moving salt water in an algae reactor, since the further pipe forms a protection for the first pipe.
- this tube can have a greater wall thickness than the first tube, so that the lighting element can also be better adapted to higher (hydrostatic) pressures.
- the transparent liquid is formed by a stabilized, distilled water or silicone oil, since the lighting element thus has very good optical properties. If stabilized, distilled water is used, there is also no risk to the environment in the event of a break or a leak, in particular not to the biomass tank content of the biomass cultivation system.
- a reflector element is arranged at the second end of the first tube.
- the efficiency can be increased with the reflector element, so that at least approximately 100% of the coupled-in light can be coupled out again.
- the first tube is at least partially provided with a pattern on its outside.
- the pattern can for example be formed by white printing.
- the pattern is formed by pattern elements that are arranged over the course of the length of the first tube with a decreasing distance from one another.
- flow elements are arranged on the outside of the lighting element and / or the outside is formed with a surface structure. This measure (s) can enable a laminar flow to prevail on the outside, for example in the tank contents of a biomass cultivation system, whereby the formation of a biofilm on the outside and thus a reduction in the light yield can be avoided or reduced.
- first and / or the further tube is / are dome-shaped at the second end.
- connection element with at least one connection element for a light guide element is arranged at the first end of the first tube and / or the further tube, wherein the connection element and / or dipping the light guide element into the transparent liquid.
- An additional media transition when the light is introduced into the lighting element can thus also be avoided.
- immersing the connecting element and / or the light guide element an improvement in the cooling of the light exit surface can be achieved.
- FIG. 1 shows a section from a biomass cultivation system
- FIG. 5 shows a detail from the lighting element according to FIG. 4;
- FIG. 6 shows another section from the lighting element according to FIG. 4;
- FIG. 7 shows a detail from a variant embodiment of a lighting element
- 8 shows a section from a biomass cultivation system with a sensor and tracking system
- 9 shows a floor reflector in section in side view
- Fig. 1 a preferred embodiment of the application of the invention is shown. However, it should already be mentioned at this point that the invention can also be used elsewhere.
- Fig. 1 shows a biomass cultivation system 1.
- This includes at least one lighting element 2, which is part of the lighting system.
- the lighting element 2 is connected to at least one light collecting panel 3 (which can also be referred to as a light concentration panel). Sunlight is absorbed in the light collecting panel 3 and passed on to the lighting element 2 via at least one light guide 4.
- the lighting element 2 is arranged within a tank 5 which receives the biomass, for example algae.
- the biomass cultivation system 1 can also have at least one tracking system 6.
- a light distribution element 7 can also be arranged for distributing / dividing the light between the at least one light collecting panel 2 and the at least one tank 5.
- a detail from a light collecting panel 3 is shown in section.
- the light-collecting panel 3 comprises a frame 8 in which a number of light-collecting elements 9 arranged next to one another, in particular in one plane, and a number of light guides 4 corresponding to the number of light-collecting elements 9 are arranged, a light guide 4 being assigned to each light-collecting element 9 and each light guide 4 is held in a holding element 10 at a distance 11 from the light ammelide 9.
- the holding elements 10 are held by a metal element, which preferably has the shape of a metal plate 12.
- the light ammeletti 9 are designed as converging lenses, for example as so-called plano-convex lenses.
- the light ammeletti 9 are formed as Fresnel lenses. Since Fresnel lenses are known in principle, reference is made to the relevant prior art. However, another suitable lens shape can also be used.
- the light guides 4 have light entry surfaces 13 which face the light ammeletti 9 and are at right angles to the optical axis 14 of the light collecting elements 9.
- the optical axis 14 preferably run through the center points of the Lichteintrittsflä chen 13 de with at least approximately circular cross-section executed light guide 4.
- the light entry surfaces 13 of the light guide 4 are from the light ammelimplantation 9 in the stand 11, with a light guide 4 below a light collecting element 9 is arranged.
- the distances 11 between the light ammeletti 9 and the light entry surface 13 of the light guide 4 correspond to the focal length of the light collecting elements 9.
- the focal length is known to be defined as the distance of a main plane of the light collecting elements 9 from de ren focal points.
- incident light 16 is focused precisely on light entry surfaces 13 of light guides 4 by light collecting elements 9.
- the light guides 4 are held in holding elements 10.
- the distance 11 between the light collecting elements 9 and the light entry surfaces 13 of the light guide 4 preferably corresponds at most to the focal length of the light collecting elements 9 with a tolerance range of ⁇ 1 mm.
- optical axis “focal length” and “focal point” are used in accordance with their usual meaning in optics.
- no further optical elements i.e. no secondary optics, are arranged between the light-emitting elements 9 and the light guides 4, possibly with the exception of the holding elements 10.
- the area 17 between the light collecting elements 9 and the light entry surfaces 13 of the light guides 4 is therefore free of light-refracting and light-deflecting elements.
- the area 17 between the light collecting elements 9 and the light entry surfaces 13 of the light guides 4 can optionally be filled with a gas or evacuated.
- the light entry surfaces 13 are arranged inside the holding element 10.
- a distance between the end surfaces 18 of the holding elements 10 and the light-collecting element 9 facing the light-collecting elements 9 is therefore preferably smaller than the distance 8 between the light-collecting elements 9 and the light entry surfaces 13 of the light guide 4.
- the light guides 4 are preferably glued to the holding elements 10.
- the holding elements 10 have receiving channels 19, in particular blind holes, as can be seen better from FIG. 3, which shows a section through a preferred embodiment of a holding element 10 (preferably all Holding elements 10 of a light collecting panel 3 are designed identically) shows.
- the cross section of these receiving channels 19 is preferably larger than the cross section of the light guide 4, viewed in the same direction. It is thus possible to form at least one free space between the Lichtlei tern 4 and the walls of the receiving channels 19, through which the air in the receiving channels 19 is displaced by the adhesive that is displaced into the receiving channels 19 by the introduction of the light guide 4 will, can escape.
- the displaced adhesive also makes it possible to seal the receiving channels 19 on the underside of the holding element 10, at which the light guide 4 emerges from the holding element 10.
- the receiving channels 19 can for example have an oval, square, for example square cross-section.
- the light guides 4 preferably have an at least approximately circular cross section.
- the receiving channels 19 of the holding elements 10 are each formed by a combination of a truncated cone 20 (truncated cone) to which a cylinder 21 adjoins in the direction of the end faces 18 of the holding elements 10 facing the light ammeliata 9, as shown in FIG. 3.
- the axial length of the truncated cones 20 and / or the cylinder 21 can be designed differently, as shown in FIG. 3 with the aid of an extension of the cylinder 21 shown in dashed lines.
- the receiving channels 19, however, preferably end exactly in the plane of the focal point (focal point).
- the light guides 4 are preferably arranged in the receiving channels 19 such that the light entry surfaces 13 of the light guides 4 bear directly on the respective bottom surfaces 22 of the receiving channels 19.
- the light guides 4 are glued to the holding elements 10 exclusively in the region of the truncated cones 20.
- a UV-resistant adhesive is preferably used as the adhesive. It is further preferred if the adhesive does not cause any optical refraction of the light passing through.
- the holding elements 10 are formed from a light-permeable (transparent) material.
- the holding elements 10 can be designed in such a way that no light is deflected in the holding elements 10.
- no optically active (in the sense of light deflection) element can be arranged between the light ammelium 9 and the light entry surfaces 13 of the light guides 4.
- the end face 18 of the holding elements 10 are preferably designed to be shiny or high-gloss (but not reflective).
- the end face 18 can be oriented parallel to the aforementioned main plane of the light signaling elements 9 and also to the light entry faces 13 of the light guide 4.
- the end surfaces 18 of the holding elements 10 are partially rounded on the surface 18 facing the light ammelele elements 9.
- the rounding extends only over a partial area, in particular an edge area, wherein the remainder of the surfaces 18 can be made flat, as shown in lig. 3.
- the curves can, for example, be shaped like spherical disks, ellipsoidal disks, etc.
- the holding elements 10 consist of a material which has a refractive index which deviates by no more than 5%, in particular by no more than 3%, from the refractive index of the material of the light guide 4. Thus, there is preferably no further refraction of light in the holding elements 10.
- the light ammeletti 9 and / or the holding elements 10 can be made at least partially, preferably in full, from a polymeric synthetic plastic.
- a polymeric synthetic plastic Polymethyl methacrylate (PMMA), polycarbonate (PC) or Polystyrene (PS) or generally a highly transparent plastic can be used as the plastic.
- the light guide 4 can be made of glass or a polymeric synthetic plastic, for example made of polymethyl methacrylate (PMMA), polycarbonate (PC) or polystyrene
- the conductor 4 and the holding elements 10 can consist of the same polymer material or of different materials.
- Each light guide 4 is preferably arranged in its own holding element 10.
- the holding elements 10 are not directly connected to one another.
- the holding elements 10 are preferably designed in the form of a cylinder.
- the light-collecting elements 9 are preferably combined to form plate-shaped (possibly one-piece) light-collecting element modules, each with a plurality of light-collecting elements 9, which rest on the spacers 22. From the standholders 22 can optionally be received in bores or recesses in the metal plate 12 and the light-collecting element modules (form-fitting). A cohesive or non-positive connection of the spacers to the metal plate 12 and the light-collecting element modules is also possible.
- spacers 22 are located next to the holding elements 10, so in the sense of the inven tion not in the area directly below the light collecting elements 9 and between the light collecting elements 9 and the light guide 4 and have no optical function in terms of light guidance or light deflection.
- the holding elements 10 are held in the metal plate 12.
- the metal plate 12 can be designed in the form of a perforated plate, the holes having a diameter which is suitable for inserting the holding elements 10.
- the holding elements 10 can be connected to the metal plate 12.
- the holding elements 10 are preferably cylindrical, at least in the area of the metal plate 12, and have a circumferential web 22 with which they rest on the metal plate 12.
- the webs 22 can be formed by a cross-sectional expansion of the holding elements 10, the support shoulders for the Garle elements 10 form.
- the webs 22 can extend from the metal plate 12 to the end faces 18 of the holding elements 10.
- other form-fitting, material-fitting or force-fitting connections between the holding elements 10 and the metal plate 12 can also be used.
- the light collecting panel 3 there is only a single metal plate 12 for all the holding elements 10 assigned to the light collecting panel 3, several small metal plates 12 can also be used in the light collecting panel 3 instead of a large metal plate.
- the metal plate 12 In addition to the function of holding the holding elements 10, the metal plate 12 also takes on the function of better cooling of the holding elements 10 and the light guides 4 contained therein.
- the metal plate 12 can, according to a preferred embodiment of the invention, consist of a metal or a metal alloy that / which has a thermal conductivity of at least 200 W / (mK) at 20 ° C.
- the metal plate 12 can consist of copper or a copper alloy.
- the metal plate 12 consists of aluminum or an aluminum alloy.
- the metal plate 12 has a reflective layer 24 at least on the surface facing the light-collecting elements 9.
- the reflection layer 24 is preferably made white, but can also be made light gray, etc., or generally light.
- the reflective layer 24 can be formed by a matt lacquer, for example based on alkyd resin, a powder coating, for example a powder lacquer, or a film, each in one of the specified colors. An increased reflection of the incident light 16 and thus an improvement in the cooling can be achieved via this reflection layer 24.
- the reflective layer 24 can be produced by coating the metal plate 12 thereon. But there is also the possibility that the reflective layer 24 is printed on, glued on, etc. is.
- the light collecting panel 3 has the frame 8, which surrounds the optical cal system of the light collecting panel 3, that is, forms its side closure.
- the light collecting panel 3 also has a bottom, not shown, and a transparent cover 25 which is held by the frame 8.
- the frame 8 and the floor can also be designed in one piece as a trough.
- the frame 8 is also made of a metallic material, whereby, according to a further embodiment of the invention, the frame 8 is made of the metal or metal alloy from which the metal plate 12 is made, for example aluminum or an aluminum alloy.
- the cover 25 is preferably made of glass, in particular an anti-reflective glass, which optionally has a UV filter.
- POF polymeric optical fiber
- the light guides 4 can be bundled into one or more fiber bundles in the light collecting panel 3.
- the light guides 4 are preferably passed through the frame 8, for example by means of cable glands, e.g. PG cable glands.
- the light collecting panel 3 has improved stability and strength.
- the holding elements 10 can also be referred to as focusing cylinders.
- the focusing cylinders have "rounded free surfaces" on their optical upper side in order to be able to compensate for any slight shifts in the optical system and to keep the focus point central.
- the system is omnidirectional for light entering.
- the holding elements 10 are not only used for temperature dissipation, as is the case in the prior art.
- the light collecting panel 3 is used in particular for a lighting system, for example to direct sunlight into the interior of a building.
- the sunlight captured by the light collecting panel 3 is used to supply biomass, in particular algae, with light in order to improve or enable their growth in a technical style.
- the sunlight is passed on from the light collecting panel 3 to the lighting element 2.
- the lighting element 2 is arranged at least partially within the tank 5.
- the lighting element 2 has a first tube 26 with a first end 27 and a length of a longitudinal center axis 28 through the first tube 26 to the first end 27 opposite the second end 29.
- a connection element 30 is arranged for a light source.
- the light source can be any suitable light source.
- the lighting element 2 serves to distribute sunlight, in particular to couple sunlight into the tank 5 of the biomass cultivation system 1. Accordingly, the light source is preferably sunlight.
- the sun light can also be used, for example, to illuminate a room via the lighting element 2.
- connection element 30 can be seen better from Lig. 6.
- the connection element 30 is designed in particular special plate-shaped. It preferably has POL plugs 31 or couplings for POL plugs.
- the direct connection of light guides 4 to the connection element 30 is thus possible, that is to say in particular the light guides 4 which forward the light from the light collecting panel 3 (lig. 1) to the lighting element 2.
- connection element 30 forms, in particular, a cover for the first pipe 26. It preferably forms a sealing element, since the first pipe 26 can optionally be closed in a sealing manner with it.
- the POV plugs 31 or the couplings for this are also closed in a liquid-tight manner.
- the first tube 26 can have a base element 32.
- the first tube 26 is formed from a transparent material. It is preferably formed from a transparent plastic, for example from polymethyl methacrylate (PMMA), polycarbonate (PC) or polystyrene (PS).
- PMMA polymethyl methacrylate
- PC polycarbonate
- PS polystyrene
- transparent in the context of the invention means that the material is permeable at least to visible light in the wavelength range between 350 nm and 750 nm. The material can, however, also be transparent to other wavelengths from the non-visible range.
- the first tube 26 is filled with a transparent liquid.
- the transparent liquid fills the entire volume of the first pipe 26 or the remaining volume if there are internals, etc. in the first pipe 26.
- At least one corresponding valve can be provided for pressure equalization, for example in the cover of the lighting element 2. This at least one valve can also be used to fill the first tube 26 with the transparent liquid.
- the transparent liquid can be formed by a stabilized, distilled water, for example a water stabilized with silver ions (for example between 2.5 mg and 4 mg of silver ions per filter).
- the water can also contain chlorine.
- the transparent liquid can also be a silicone oil, for example.
- the transparent liquid serves as a spruce-conducting medium. It is thus possible to manufacture a “spruce conductor” that could not be mass-produced from solid material.
- the lighting element 2 can have a catch of up to 8,000 mm and a diameter of up to 400 mm, for example.
- the wall thickness of the first tube 26 can be up to 8 mm.
- these figures are not to be understood as limiting.
- the first tube 26 is surrounded on the outside by a further tube 33.
- the further tube 33 also has a first end 34 and a second end 35.
- the further tube 33 forms an outer surface 36 of the lighting element 2.
- the further tube 33 is also formed from a transparent plastic, for example from polymethyl methacrylate (PMMA), polycarbonate (PC) or polystyrene (PS).
- PMMA polymethyl methacrylate
- PC polycarbonate
- PS polystyrene
- the further pipe 33 can have a greater wall thickness than the first pipe 26.
- the wall thickness of the further pipe 33 can be selected, for example, from a range of up to 10 mm.
- these figures are not of a restrictive nature.
- the distance between the outer surface of the first pipe 26 and the inner surface of the further pipe 33 can for example be between 0 mm and 10 mm.
- the distance over the circumference of the lighting element 2 can also vary.
- connection element 30 mentioned above can also form the, in particular sealing, cover for the further pipe.
- connection element 30 can also only form the, in particular sealing, cover for the further pipe 33, since the first pipe 26, which is preferably arranged within the further pipe 33, can also be sealed with it.
- the first tube 26 can have a base element 32.
- the “can” refers to the presence or absence of the further tube 33, wherein the first tube 26 can even have a base element 32 if it is arranged in the further tube 33.
- the bottom element 32 of the first tube 26 can be designed as a reflector element which reflects the light radiated into the first tube 26 back into the liquid in the first tube 26.
- the reflector element can in particular be designed in the form of a disk or as a truncated cone or as a cone, as is shown in FIG. 9.
- the surface of the floor element 32 facing the liquid in the first tube 26 can be provided with a layer, for example vaporized, with which the reflective properties of the floor element 32 can be improved.
- the layer can be, for example, a mirror or a film.
- the floor element 32 preferably has a low height.
- the height can be between the wall thickness of the floor element 32 and 20 mm.
- the further tube 33 also preferably has a base element 37 at the second end 35.
- This bottom element 37 which can be formed in one piece with the second tube 33, preferably has a curved shape. In particular, it can be hemispherical or generally dome-shaped.
- the first tube 26 can also be designed in the shape of a dome at the second end, in particular if no further tube 33 is arranged. If necessary, an additional reflector element can be arranged instead of the Bodenelemen 32 in the region of the second end 29 of the first tube 26.
- flow elements 37 are arranged on the outside of the lighting element 2 and / or a surface structure 38 is formed, as shown in FIG. 7 on the basis of a section from an embodiment of a lighting element 2 is shown.
- the flow elements 37 can be designed in the form of straight or inclined webs or triangular elements, etc. running in relation to the central longitudinal axis through the lighting element 2.
- the flow elements 37 can be formed by a transparent fouling release film, which optionally has micro-engravings.
- the flow elements 37 can also be designed like wings as so-called “winglets” with decreasing height and at least partially inclined course (in relation to the longitudinal center axis through the lighting element 2), as is shown in FIG. 10 with reference to the bottom part of the further tube 33, or like a shark fin, etc.
- the winglets have the advantage that they cause a wake vortex that rotates around the lighting element 2.
- the flow elements 37 are preferably distributed, in particular evenly distributed, over the outer circumference of the further pipe 33.
- the flow elements 37 are preferably made transparent and / or formed in one piece with the further tube 33 or its base element.
- the surface structuring 38 can be formed, for example, as a microgroove.
- microgrooves can have a straight course or a (multiple) curved course have over their longitudinal extent.
- the microgrooves can have a width 39 between 1 mhi and 20 mhi and a length 40 between 1 mm and 200 mm.
- the microgrooves can have a maximum depth which is selected from a range from 1 mhi to 5 mhi.
- the micro-grooves can be arranged at a distance from one another over the circumference of the lighting element 2, which is selected from a range of 3 mm to 30 mm.
- the surface structuring 38 can, however, also be designed differently, for example in the form of triangles or with an oval shape of the individual structural elements, etc.
- the surface structure 38 can be produced mechanically or with a laser or chemically by etching, etc.
- Such flow elements 37 or such a surface structure 38 can also be arranged on the above-described dome-shaped end of the lighting element 2 (FIG. 10).
- the flow elements 37 and / or the surface structure 38 can be used to generate a laminar flow along the entire length of the lighting element 2, which avoids or prevents algae growth or biomass growth from the nutrient medium of the tank 5.
- the lighting element 2 couples / guides light from light guides 4 (e.g. POF) or other strongly directed light sources into a liquid, whereby the principle of "total reflection" is used within the lighting element 2.
- light guides 4 e.g. POF
- the first tube 26 is at least partially provided with a pattern 39 on its outside.
- this pattern 39 it can be achieved that the “total reflection” is interrupted, with which the light can better exit from the first lighting element 2 or can be radiated out.
- the pattern 39 can be designed with pattern elements in the form of dots, lines, etc.
- the pattern 39 can be printed onto the outer surface of the first tube 26.
- the pattern 39 can also be used with other known coating methods be manufactured or glued on.
- the pattern is printed on a transparent plastic film and is glued to the outer surface of the first tube 26 with this or is applied to the outer surface of the first tube 26 in the manner of a transfer coating process. In the latter case, a non-transparent film can also be used.
- the pattern 39 can be adapted to the light exit angle of the light guides 4.
- the light guides 4 can, for example, have a light exit angle of 2 ⁇ 30 °, ie a total of 60 °.
- the pattern 39 is formed by pattern elements that are arranged over the course of the length of the first tube 26 from the first end 27 to the second end 29 with a decreasing distance from one another.
- Each pattern element represents a light exit from the lighting element 2.
- the number and / or the area of the pattern elements near the light entry into the liquid is smaller and increases with the distance from the light entry . This can take into account that the light energy present in the tube has already decreased through the first exit openings and therefore more or larger exit openings should be available in order to achieve an at least approximately uniform radiation s value over the entire length of the tube.
- the density of the pattern 39 is preferably greater as the light energy decreases.
- the light guides 4 and / or the POF plug 31 and / or the couplings for the POF plug in at the first end 27, 34 of the first tube 26 and / or the further tube 33 the transparent liquid is immersed / immersed in the first tube 26, as can best be seen from the detailed view in FIG.
- better light coupling into the lighting element 2 can be achieved.
- better cooling of the POF plug 31 and / or the couplings for the POF plug and / or the light guide 4 can be achieved.
- the light collecting panel 3 can have a tracking system 6, with the aid of which the light collecting panel 3 can follow the course of the sun with regard to its alignment to the sun.
- a preferred embodiment variant of the tracking system 6 is shown. It should be noted, however, that conventional tracking systems known from the prior art can also be used for the light collecting panel 3. However, the tracking system 6 described in the following has advantages in terms of tracking accuracy. With this tracking system 6, a tracking accuracy of better than 0.05 ° can be achieved.
- the tracking system 6 comprises a sensor 40.
- the sensor 40 and the tracking system 6 are preferably used for the biomass cultivation system 1, in particular in connection with the above-described light collecting panel 3.
- the sensor 40 and / or the tracking system 6 can, however, also be used in other systems in which the detection of a parameter of light and / or the result of this detection are significant.
- the sensor 40 and the tracking system 6 can be used in a photovoltaic system or a solar system for hot water generation or generally in a heliostatic system, e.g. also solar lighting, in order to track a module to the position of the sun.
- the sensor 40 is especially designed for determining the light output of a light source.
- it comprises a measuring arrangement 41 with a measuring element 42 for detecting at least one parameter of at least one luminous flux entering the measuring arrangement 41, at least one light guide element 43 and / or at least one connection element 44 for a light guide element 43, and preferably at least one electronic assembly 45 for Processing of the parameter of the light detected by the measuring element 42.
- the light guide element 43 is preferably connected to the light source, that is, in the exemplary embodiment shown in Lig. 8, with the light collecting panel 3.
- the light guide element is preferably formed by at least one light guide 4 or includes it.
- the at least one light guide 4 can consist of glass or a POL, as has already been explained above.
- a three- to six-core light guide element 43 is preferably used.
- the connection element 44 can be a POF plug or a POF plug coupling.
- the measuring element 42 is preferably arranged outside the radiation angle of the Lichtleitele element 43 in the hollow body 46.
- the electronic assembly is preferably part of the sensor 40. Alternatively, however, it can also be integrated into a (central) control and / or regulating device for the light source or generally a data processing system.
- the measuring arrangement 41 also has a hollow body 46.
- the hollow body 46 is formed with side surfaces 47 level.
- the hollow body 46 is a cuboid or a cube or a straight prism with a hexagonal or octagonal, etc., base, etc.
- a hollow body 46 is used that has as few side surfaces 47 as possible, so in particular a cuboid or a cube.
- the aforementioned measuring element 42 is arranged within the hollow body 46. In particular, it is located entirely within the hollow body 46. Furthermore, the measuring element 42 is connected to the electronic assembly 46 in a wireless or wired manner.
- the hollow body 46 has an (optionally diffusely reflective) inner surface 46 which is provided with an, in particular white, coating. Uniform exposure in the interior of the hollow body 46 can be achieved by the coating.
- the coating can be, for example, a white, commercially available electronic paint. But it can also consist of barium sulfate or optical Teflon. However, it is also possible for a layer to be applied, for example glued, to the inner surface 46, with which an improvement in the illumination of the interior of the hollow body 46 can be achieved.
- the hollow body 46 preferably has a volume between 80 cm 3 and 150 cm 3 .
- the integration of the sensor 40 or the tracking system 6 into the light source, in particular the light collecting panel 3, can thus be simplified.
- the measuring arrangement 41 ie the hollow body 46
- the measurement Order 41 ie the hollow body 46
- the measurement Order 41 has at least three, in particular at least six, Lichtlei timplantation 43 and / or at least three, in particular at least six, connection elements 44 for light guide elements 43, whereby the tracking accuracy of the tracking system 6 can be further improved.
- the measuring arrangement 41 can have between three and six light guide elements 43 and / or between three and six connection elements 44 for light guide elements 43.
- the multiple light guide elements 43 and / or the multiple connection elements 44 for light guide elements 43 can all be arranged on the same side surface 47 or on different side surfaces 47 of the hollow body 46.
- the measuring element 42 is a photodiode (with a corresponding measuring characteristic, which can be changed by an electronic circuit or the particular conditions at the installation site of the measuring element 42) or a commercially available chip-based lux meter.
- the electronic assembly 45 has a data processing unit 49, so that the electronic assembly 45 also forms a mini-computer.
- the data processing unit 49 can also take over the control and position determination of at least one drive 50 for the adjustment of the light collecting panel 3.
- the senor 40 can also take over the “distribution” of the supply voltage if necessary.
- Each light collecting panel 3 preferably has its own sensor 40 of this type, with the sensors 40 preferably being arranged on or in the respective, associated light collecting panel 3.
- the tracking system 6 also includes the at least drive 50, which is connected to the light collecting panel 3 and which changes or adapts its position relative to the sun, so that the light collecting panel 3 is always at a certain angle, preferably 90 °, to the Sun is aligned.
- the drive 50 correspondingly to this other element.
- the drive 50 can, for example, be an electric motor that effects the adjustment of the light collecting panel 3 via a corresponding gear, for example gearwheels.
- Other suitable drives 50 can of course also be used.
- the drive 50 can be directly connected to the sensor 40, for example to the data processing unit 49 of the electronic assembly.
- the connection can be wired or wireless.
- the tracking system 6 it can be provided that it has a (central) data processing system 51 (for example a PC). A plurality of sensors 40 can then optionally be connected to this via wire or wirelessly. In this case, the forwarding of the data to the at least one drive 50 for its control and / or regulation then preferably takes place via this (central) data processing system 5E
- the following method can be carried out for tracking the light collecting panel 3 or another element pointing to the tracking system 6.
- the “zero” position of the light collecting panel 3 is determined by determining its elevation and its azimuth by the tracker (drive 50) using limit switches and with the sensor 40. These data are transmitted to the data processing system 51 and stored therein. Furthermore, the position of the sun at the location of the light collecting panel 3, which is predetermined by the date and time, is determined by the data processing system 51 and these data are transmitted to the tracking system 6.
- the light-collecting panel 3 is then moved into the position thus predetermined.
- correction values for azimuth and elevation are determined with the sensor 40 at predefined intervals and these values are superimposed on an ephemeris curve stored in the data processing system 51.
- a “new calibration” can be started. This process can be started and controlled either by the operator or automatically by a control program from the (central) data processing system51.
- the exemplary embodiments show or describe possible design variants of the biomass cultivation system 1, the lighting element 2, the light collecting panel 3, the sensor 40 and the tracking system 6, whereby it should be noted at this point that combinations of the individual design variants are also possible.
- the correction value from the immediately preceding determination of the correction value is used. For this purpose, at least these “last” correction values are saved. For the / each light collecting panel 3, the optimal sun-following curve can thus be achieved, taking into account mechanical and climatic influences.
- the self-learning algorithm of the tracking system 6 allows a real-time optimization and thus a reaction to briefly changing climatic or mechanical framework conditions in the area of the light collecting panel 3 / light collecting panels 3.
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Abstract
Description
Claims
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
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ATA50727/2019A AT522919A1 (de) | 2019-08-21 | 2019-08-21 | Beleuchtungselement |
ATA50726/2019A AT522902A1 (de) | 2019-08-21 | 2019-08-21 | Sensor zur Bestimmung der Lichtleistung einer Lichtquelle |
ATA50725/2019A AT522809B1 (de) | 2019-08-21 | 2019-08-21 | Lichtsammelpaneel |
PCT/EP2020/073360 WO2021032847A2 (de) | 2019-08-21 | 2020-08-20 | Lichtsammelpaneel |
Publications (1)
Publication Number | Publication Date |
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EP4028499A2 true EP4028499A2 (de) | 2022-07-20 |
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Application Number | Title | Priority Date | Filing Date |
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EP20799617.4A Withdrawn EP4028499A2 (de) | 2019-08-21 | 2020-08-20 | Lichtsammelpaneel |
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EP (1) | EP4028499A2 (de) |
WO (1) | WO2021032847A2 (de) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
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DE4446303C2 (de) * | 1994-12-23 | 1997-01-23 | Deutsche Forsch Luft Raumfahrt | Vorrichtung zum Konzentrieren von Solarstrahlung |
US6621973B1 (en) * | 2000-03-16 | 2003-09-16 | 3M Innovative Properties Company | Light guide with protective outer sleeve |
US20070272295A1 (en) * | 2006-05-26 | 2007-11-29 | Rubin Leonid B | Heat sink for photovoltaic cells |
DE102007018675B4 (de) | 2007-04-18 | 2009-03-26 | Seyfried, Ralf, Dr. | Biomassezuchtanlage und Verfahren zur Züchtung von Biomasse |
CN101709262B (zh) * | 2009-12-10 | 2012-05-23 | 中国科学院广州能源研究所 | 高密度培养微藻的太阳能分光光合生物反应器系统 |
EA201290771A1 (ru) * | 2010-02-10 | 2014-05-30 | Гюнтер Кунц | Рефлектор, приемное устройство и датчик для термических солнечных коллекторов |
US20170138636A1 (en) | 2014-06-18 | 2017-05-18 | Sun Algae Technology S.R.L. | Solar lens panel |
DE102016006865B3 (de) * | 2016-06-01 | 2017-06-29 | Friedrich Grimm | Sonnenkollektormodul mit einer lichtleitenden Röhre |
CN106287562A (zh) * | 2016-09-26 | 2017-01-04 | 北京首量科技股份有限公司 | 一种小型太阳光采集装置 |
IT201700029945A1 (it) | 2017-03-17 | 2018-09-17 | Biosyntex S R L | Tubo diffusore |
-
2020
- 2020-08-20 EP EP20799617.4A patent/EP4028499A2/de not_active Withdrawn
- 2020-08-20 WO PCT/EP2020/073360 patent/WO2021032847A2/de unknown
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WO2021032847A3 (de) | 2021-05-27 |
WO2021032847A2 (de) | 2021-02-25 |
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