WO2022162300A1 - Systeme de récupération et de conversion de l'énergie solaire pour une serre, serre et procédé de commande du systeme associé - Google Patents
Systeme de récupération et de conversion de l'énergie solaire pour une serre, serre et procédé de commande du systeme associé Download PDFInfo
- Publication number
- WO2022162300A1 WO2022162300A1 PCT/FR2022/050127 FR2022050127W WO2022162300A1 WO 2022162300 A1 WO2022162300 A1 WO 2022162300A1 FR 2022050127 W FR2022050127 W FR 2022050127W WO 2022162300 A1 WO2022162300 A1 WO 2022162300A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- greenhouse
- solar energy
- solar
- panels
- energy recovery
- Prior art date
Links
- 238000011084 recovery Methods 0.000 title claims abstract description 46
- 238000006243 chemical reaction Methods 0.000 title claims abstract description 26
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000001816 cooling Methods 0.000 claims description 20
- 230000005855 radiation Effects 0.000 claims description 18
- 238000003306 harvesting Methods 0.000 claims description 14
- 239000012809 cooling fluid Substances 0.000 claims description 9
- 238000003860 storage Methods 0.000 claims description 7
- 239000012141 concentrate Substances 0.000 claims description 4
- 239000013529 heat transfer fluid Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 description 7
- 238000012216 screening Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/243—Collecting solar energy
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/24—Devices or systems for heating, ventilating, regulating temperature, illuminating, or watering, in greenhouses, forcing-frames, or the like
- A01G9/246—Air-conditioning systems
-
- 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
- F24S23/70—Arrangements for concentrating solar-rays for solar heat collectors with reflectors
- F24S23/77—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with flat reflective plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S30/40—Arrangements for moving or orienting solar heat collector modules for rotary movement
- F24S30/42—Arrangements for moving or orienting solar heat collector modules for rotary movement with only one rotation axis
- F24S30/425—Horizontal axis
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/20—Optical components
- H02S40/22—Light-reflecting or light-concentrating means
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/42—Cooling means
- H02S40/425—Cooling means using a gaseous or a liquid coolant, e.g. air flow ventilation, water circulation
-
- 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
- H02S40/00—Components or accessories in combination with PV modules, not provided for in groups H02S10/00 - H02S30/00
- H02S40/40—Thermal components
- H02S40/44—Means to utilise heat energy, e.g. hybrid systems producing warm water and electricity at the same time
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G9/00—Cultivation in receptacles, forcing-frames or greenhouses; Edging for beds, lawn or the like
- A01G9/22—Shades or blinds for greenhouses, or the like
- A01G9/222—Lamellar or like blinds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S30/00—Arrangements for moving or orienting solar heat collector modules
- F24S2030/10—Special components
- F24S2030/13—Transmissions
- F24S2030/136—Transmissions for moving several solar collectors by common transmission elements
-
- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/25—Greenhouse technology, e.g. cooling systems therefor
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/12—Technologies relating to agriculture, livestock or agroalimentary industries using renewable energies, e.g. solar water pumping
Definitions
- the present invention relates to a solar energy recovery and conversion system for a greenhouse allowing the production of plants and
- the greenhouse has a framework, or support structure,
- the transparent roof can be made by means of transparent walls, for example made of polyethylene or polycarbonate or glass.
- greenhouses can be energy-consuming, for example to cool the greenhouse when the sun is too strong, or to heat the greenhouse.
- the present invention aims to remedy the problems mentioned above by proposing a solution for recovering the solar energy received by the greenhouse which is more efficient and more economical than the existing solutions.
- the invention proposes a greenhouse for the cultivation of plants comprising a framework which supports a transparent roof, the greenhouse comprising a cultivation zone located under the roof and a system for recovering and converting solar energy, characterized in that the solar energy recovery and conversion system includes:
- each reflective panel being pivotally mounted around a longitudinal pivot axis so as to be able to occupy at least one hidden position parallel to the cultivation area, and several inclined positions;
- At least one solar energy recovery device which is arranged between the roof and the set of reflective panels, so as to recover the solar energy reflected by the reflective panels;
- control unit which is configured to control the drive device according to the following operating modes: i) a first operating mode in which at least one group of reflective panels is controlled in an inclined position of erasing according to a direction substantially parallel to the sun's rays, the drive device varying the inclination of the reflective panels of the group according to the course of the sun, so as to maximize the quantity of sun's rays reaching the cultivation area, ii) a second mode of operation in which each reflective panel of the group of reflective panels is individually controlled in a tilted concentration position aimed at concentrating the solar rays which are reflected towards the solar energy harvesting device; ill) a third mode of operation in which the reflective panels of the group of reflective panels are all controlled in a concealment position parallel to the cultivation area.
- the invention makes it possible to fulfill several objectives simultaneously since it allows both better thermal regulation inside the greenhouse, the production of electrical and/or thermal energy as well as its possible storage. The invention therefore makes it possible to envisage the construction of self-sufficient greenhouses from the energy point of view
- the solar energy recovery device comprises at least one photovoltaic panel for converting solar radiation into electrical energy
- the solar energy recovery device comprises at least one thermal solar collector making it possible to convert solar radiation into thermal energy via a heat transfer fluid
- the solar energy recovery device comprises a storage device which makes it possible to store the electrical energy or the thermal energy produced by the photovoltaic panel or by the solar thermal collector after conversion of solar radiation;
- the greenhouse includes a thermal regulation device which uses the electrical or thermal energy produced by the solar energy recovery device in order to regulate the temperature inside the greenhouse;
- the roof comprises at least two sections which meet in a longitudinal ridge, a southern section being intended to be oriented generally towards the south, a northern section being intended to be oriented generally towards the north, and the device for recovering the solar energy extends longitudinally under the north pan;
- the solar energy recovery device is arranged near the lower part of the northern side
- each photovoltaic panel comprises a cooling device arranged against its rear face, on the side opposite the reflective panels, this cooling device comprising an enclosure allowing a cooling fluid to flow directly into contact with said rear face.
- the present invention also proposes a method for controlling a solar energy recovery and conversion system equipping a greenhouse according to one of the preceding characteristics, characterized in that it comprises the following modes of operation: i) a first mode of operation in which at least one group of reflective panels is controlled in an inclined obliteration position in a direction substantially parallel to the sun's rays, the drive device varying the inclination of the reflective panels according to the course of the sun, so as to concentrate the sun's rays towards the cultivation area, ii) a second mode of operation in which each panel reflector of the group of reflective panels is individually controlled in a tilted position of concentration to direct at least a portion of the solar rays which are reflected towards the solar energy harvesting device; ill) a third mode of operation in which the reflective panels of the group of reflective panels are all controlled in an occultation position parallel to the cultivation area, and in that it comprises the following steps: a) determination of the needs of the plants placed in the cultivation area using solar energy; b) selection of
- the following steps are implemented: c) determination of the thermal energy and electrical energy requirements of the greenhouse; d) inclination of each reflective panel according to an orientation which makes it possible to distribute the solar rays reflected towards the solar energy recovery device according to the needs determined in step c), the solar energy recovery device comprising a solar thermal collector and a photovoltaic panel.
- a step of cooling the panels photovoltaic panels is implemented during which a cooling fluid is circulated on the rear face of the photovoltaic panels, in direct contact with said rear face.
- the present invention also provides a method for controlling a solar energy recovery and conversion system associated with the greenhouse described above, the method comprising receiving a climate indicator according to the geographical location of the greenhouse ; receiving a desirable crop condition indicator depending on the type of planting to be grown in a growing area of the greenhouse; and controlling the inclination of at least one group of reflective panels of the greenhouse according to the climate indicator and according to the desirable crop condition indicator so as to either:
- - form a blackout wall to regulate the temperature of the growing area either by preventing thermal radiation from the growing area from escaping to the roof, or by preventing at least part of the sun's rays from reaching the growing area .
- FIG. 1 is a perspective view which schematically shows a greenhouse equipped with reflective panels in accordance with the teachings of the invention
- - Figure 2 is a front view showing the greenhouse of Figure 1 when the reflective panels occupy a concealed position
- - Figure 3 is a view similar to that of Figure 2 which shows the greenhouse of Figure 1 in a first mode of operation, when the reflective panels are controlled in an inclined position of erasure;
- FIG. 4 is a view similar to that of Figure 2 which shows the greenhouse of Figure 1 in a first variant of a second mode of operation, when the reflective panels are controlled in a first inclined concentration position;
- FIG. 5 is a view similar to that of Figure 2 which shows the greenhouse of Figure 1 in a second variant of the second mode of operation, when the reflective panels are controlled in a second inclined concentration position;
- FIG. 6 is a view similar to that of Figure 2 which shows the greenhouse of Figure 1 in a third variant of the second mode of operation, when the reflecting panels are controlled so as to distribute the solar rays in several directions;
- FIG. 7 is a block diagram which represents a method for controlling the solar energy recovery and conversion system fitted to the greenhouse of Figure 1;
- figure 8 is a block diagram which represents a method of control of the system of recovery and conversion of solar energy associated with the greenhouse of figure 1;
- FIG. 9 is a schematic view of a detail of Figure 4 which illustrates a cooling device arranged against photovoltaic panels equipping the greenhouse of Figure 4.
- FIG. 1 illustrates a greenhouse 10 for growing plants.
- the greenhouse 10 comprises a frame 12 which supports a transparent roof 14 and a cultivation area 16 located under the roof 14.
- the term "transparent" for the roof 14 should not be interpreted here in a restrictive manner.
- the roof 14 can for example be completely transparent or partly transparent.
- Cultivation area 16 here extends over most of the ground surface of greenhouse 10. Cultivation area 16 is intended for the production of plants. According to the embodiment shown, the greenhouse 10 is of the Gothic arch type.
- the frame 12 here comprises a series of arches 18 which are aligned along a longitudinal direction A1 to form a vault.
- Each arch 18 comprises two main pillars 20, 22 and two arcs 24, 26 which meet in the highest part of the roof 14 to form the ridge 28.
- the roof 14 therefore comprises two inclined sides, on either side from the ridge 28.
- the invention also applies to other greenhouse models, for example a greenhouse 10 comprising an inclined face and/or interior pillars.
- a longitudinal orientation in the longitudinal direction A1 and a transverse orientation T1 with respect to the longitudinal direction A1 will be used without limitation.
- the greenhouse 10 is oriented with respect to the cardinal points so that a first side of the roof 14, called south side 30, is oriented generally towards the south S and a second side of the roof 14, called north side 32, facing north.
- the greenhouse 10 includes a solar energy recovery and conversion system 34 which is made in accordance with the teachings of the invention.
- the solar energy recovery and conversion system 34 comprises a set of reflective panels 36 which are arranged under the roof 14, above the cultivation area 16.
- the reflective panels 36 are mounted on a support structure 38, generally flat and horizontal, arranged at the junction between the arches 24, 26 and the pillars 20, 22.
- the support structure 38 comprises, for example, transverse beams 40.
- Each reflective panel 36 here has a generally rectangular shape and extends in a longitudinal plane.
- Each reflective panel 36 is pivotally mounted, relative to the support structure 38, around a longitudinal pivot axis A2.
- blackout cover is understood here to mean a configuration in which the reflective panels 36 occupy the position in which they block the passage of radiation RS as much as possible. The resulting concealment may be total or partial.
- a drive device 42 using for example an electric motor is connected to each reflective panel 36.
- This drive device 42 is provided to individually control the pivoting of each reflective panel 36 so as to orient it according to an angular position determined by relative to solar radiation RS.
- This drive device 42 makes it possible to adjust the position of the reflective panels 36 individually or in batches.
- the reflective panels 36 have a reflective coating on each of their faces.
- the solar energy harvesting and conversion system 34 also includes a solar energy harvesting device 44 which is arranged between the roof 14 and the set of reflective panels 36.
- the solar energy recovery device 44 comprises a series of photovoltaic panels 46 for converting solar radiation RS into electrical energy.
- These photovoltaic panels 46 are preferably arranged under the north face 32 of the roof 14, in the lower part of the north face 32. They are for example mounted on the frame 12 so as to follow the slope of the north face 32 and so as to face the set of reflective panels 36.
- These photovoltaic panels 46 are provided to recover the rays reflected by the reflective panels 36 so that the reception surface of each photovoltaic panel 46 is turned towards the set of reflective panels 36.
- This geometry makes it possible to obtain a solar concentration making it possible to increase the density of radiative flux received ( flux) and reduce the capture surface (thermal and/or photovoltaic) while maintaining the same production.
- the photovoltaic panels 46 are here aligned longitudinally and here extend over the entire length of the roof 14.
- the solar energy recovery device 44 can comprise a single photovoltaic panel 46.
- the solar energy recovery device 44 also comprises a series of thermal solar collectors 48 which make it possible to convert the solar radiation RS into thermal energy via a heat transfer fluid.
- the thermal solar collectors 48 here have the form of panels and are mounted parallel to the photovoltaic panels 46, over the entire length of the roof 14. They are here mounted on the frame 12, just above the photovoltaic panels 46, so as to that the receiving surface of each thermal solar collector 48 is turned towards the set of reflective panels 36 to recover the solar rays reflected by the reflective panels 36.
- the solar energy recovery device 44 may comprise a single thermal solar collector 48.
- the solar energy harvesting and conversion system 34 also includes a control unit 50 which is configured to control the drive device 42 according to several modes of operation.
- the reflective panels 36 are controlled in an inclined position erasing P1 in a direction D1 substantially parallel to the sun's rays.
- the control unit 50 regularly determines, depending on the course of the sun, the angle of inclination of the solar rays with respect to the ground, or to the cultivation area 16, and adjusts the angular position of the panels. reflective 36 so that these reflective panels 36 are generally parallel to the sun's rays.
- This first operating mode M1 aims to maximize the quantity of solar radiation RS reaching the cultivation area 16.
- each reflecting panel 36 is controlled in an inclined position of concentration P2 aimed at maximizing the quantity of solar rays which are reflected towards the device for recovering the solar energy 44.
- the control unit 50 orients the reflective panels 36 in a first inclined concentration position P2a which makes it possible to concentrate the solar rays reflected on the panels photovoltaic panels 46.
- the control unit 50 regularly determines the angle of inclination of the solar rays with respect to the ground, and adjusts the angular position of each reflecting panel 36 so that the solar rays which are reflected on its upper reflection face 52 are deflected towards the receiving surface of the nearest photovoltaic panel 46, that is to say the one which is transversely opposite.
- each reflective panel 36 with respect to the horizontal varies progressively according to the distance separating each reflective panel 36 from the photovoltaic panel 46 furthest. close, or the transverse distance separating the reflective panel 36 from a side longitudinal wall of the greenhouse 10.
- the set of reflecting panels 36 functions here as a solar energy concentrator which makes it possible to maximize the solar energy received by the photovoltaic panels 46, which makes it possible to maximize the quantity of electrical energy produced by the solar energy harvesting device 44.
- control unit 50 orients the reflective panels 36 in a second inclined position of concentration P2b which makes it possible to concentrate the solar rays reflected on the sensors solar thermal 48.
- This second variant M2b is therefore similar to that of the first variant M2a with the difference that the concentration of the reflected solar rays is directed towards the thermal solar collectors 48 instead of the photovoltaic panels 46.
- the control unit 50 distributes the reflected solar rays both towards the photovoltaic panels 46 and towards the solar thermal collectors 48.
- This third variant M2c makes it possible in particular to regulate the quantity of solar energy converted into electrical energy and the quantity of solar energy converted into thermal energy.
- This third variant M2c also allows part of the light rays to pass towards the cultivation zone 16 so as to contribute both to the production of plants and to the production of electrical and thermal energy.
- the reflective panels 36 are all controlled in their occultation position PO by the control unit 50.
- This occultation position PO makes it possible in particular to retain the heat in the greenhouse 10 at the level of the cultivation area 16, by preventing thermal radiation from escaping towards the roof 14.
- This occultation position PO also makes it possible to regulate the temperature inside the greenhouse 10 by minimizing the increase in temperature at the culture zone 16 when the solar energy is too strong.
- the solar energy recovery device 44 comprises a storage device 54 which makes it possible to store the electrical energy and the thermal energy produced by the photovoltaic panels. 46 and by the thermal solar collectors 48 after conversion of the solar radiation RS.
- This storage device 54 comprises, for example, electric batteries making it possible to store the electrical energy and thermal batteries making it possible to store the thermal energy, for example in the form of a hot or cold fluid.
- the greenhouse 10 comprises a thermal regulation device 56 which uses the electrical energy and/or the thermal energy produced by the solar energy recovery device 44 in order to regulate the temperature inside the greenhouse.
- the thermal regulation device 56 comprises, for example, radiators making it possible to maintain the temperature in the greenhouse 10 at a level sufficient for the comfort of the plants grown in the cultivation zone 16, in particular during the night.
- the greenhouse 10 is equipped with measuring means 58 which make it possible to determine in particular the temperature inside the greenhouse 10 which allows the control unit 50 to control the thermal regulation device 56 in an appropriate manner.
- the control method comprises a first step a) of determining the needs of the plants placed in the solar energy cultivation zone.
- the control unit 50 uses in particular the measuring means 58 to evaluate the conditions of temperature, hygrometry, sunshine for the plants grown in the cultivation area.
- the mode of operation best suited to the needs of the plants is selected by the control unit 50 and implemented.
- control unit 50 can decide to inject thermal energy or electrical energy into a district heating network or into the electrical network of the place where the greenhouse 10 is located.
- the method 80 includes receiving a climate indicator 82 according to the geographical location of the greenhouse 10 and the reception of a desirable cultivation condition indicator 84 according to the type of plantation to be cultivated in the cultivation area of the greenhouse.
- the climate indicator can be a climatic zone, an altitude, a temperature, a humidity, a season, or any other type of climate indicator making it possible to characterize the climatic environment where the greenhouse is located, individually or in combination.
- the desirable cultivation condition indicator is chosen according to the type of plant to be cultivated and can be a desired temperature, a number of units of heat required, a level of light required, a number of hours of sunshine required, any other type of condition necessary for the proper growth of the plants to be grown, any range thereof or any combination thereof.
- the climate indicator and the desirable crop condition indicator may come from a database, an input of data provided by an operator or transmitted by any other system.
- the method 80 also includes the control 86 of the inclination of at least one group of reflective panels 36 of the greenhouse 10 according to the climate indicator and according to the desirable crop condition indicator so as to direct 88 at least a portion of the solar rays RS towards the cultivation area 16, as shown in Figure 3; direct 90 at least a portion of the solar rays towards the solar energy harvesting device 44 of the greenhouse 10, as shown in Figure 5; forming an occulting wall 92 to regulate the temperature of the cultivation area 16 either by preventing thermal radiation from the cultivation area 16 from escaping towards the roof 14, or by preventing at least a part of the solar rays RS from reaching cultivation area 16, as shown in Figure 2; or any combination thereof. It will be understood that the formation of a screening wall can be completely screening or partially screening.
- the photovoltaic panels 46 can be equipped with a cooling device 94 by spraying or trickling, which makes it possible to increase the performance of the photovoltaic panels 46 and to avoid overheated.
- a cooling device 94 by spraying or trickling, which makes it possible to increase the performance of the photovoltaic panels 46 and to avoid overheated.
- Figure 9 there is shown a detail view of the roof 14 of the greenhouse 10, where the photovoltaic panels 46 are installed.
- the photovoltaic panels 46 are here arranged against the roof 14 but they could be positioned differently.
- the cooling device 94 here comprises an enclosure 96 which is arranged against the rear face 98 of the photovoltaic panels 46 and which makes it possible to circulate a cooling liquid, for example water, capable of cooling the active part of the photovoltaic panels 46 .
- a cooling liquid for example water
- the cooling device 94 comprises, in its upper part, a supply pipe 100 provided with nozzles 102 which produce a flow flow F1 of the cooling fluid directly against the rear face 98 of the photovoltaic panels 46
- the inclination of the photovoltaic panels 46 allows a flow by gravity towards the lower part of the cooling device 94 which comprises a collector 102 capable of collecting the cooling fluid.
- the cooling fluid can also be projected against the rear face 98 using a spray system (not shown) in order to improve the performance of the cooling device 94.
- a spray system not shown
- the cooling device 94 can be connected to a complete cooling circuit and the thermal energy collected by the cooling fluid can be reused by appropriate means.
- the cooling device 94 is particularly effective because it allows direct contact between the cooling fluid and the rear face 98 of the photovoltaic panels 46. Unlike solutions using cooling channels arranged on the rear face 98, there is very little stresses related to the expansion of the materials constituting the photovoltaic panels 46 and the cooling device 94.
- the method for controlling the solar energy recovery and conversion system 34 fitted to the greenhouse 10 advantageously comprises a step of cooling the photovoltaic panels 46 which is implemented with the second mode of operation M2, when the photovoltaic panels 46 receive solar rays RS reflected by the reflective panels 36.
- the term “greenhouse” must be interpreted sufficiently broadly to apply to any type of building in which the control method according to the invention can be used.
- This building may in particular have a glazed portion and an unglazed portion.
- A2 longitudinal pivot axis
- M2c third variant of the second operating mode PO: muted position
- P2b second inclined position of concentration RS: solar radiation or solar rays
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Greenhouses (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA3205560A CA3205560A1 (fr) | 2021-01-27 | 2022-01-24 | Systeme de recuperation et de conversion de l'energie solaire pour une serre, serre et procede de commande du systeme associe |
US18/261,835 US20240074360A1 (en) | 2021-01-27 | 2022-01-24 | Solar energy recovery and conversion system for a greenhouse and associated method for controlling the system |
EP22705436.8A EP4284157A1 (fr) | 2021-01-27 | 2022-01-24 | Systeme de récupération et de conversion de l'énergie solaire pour une serre, serre et procédé de commande du systeme associé |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR2100757A FR3119076B1 (fr) | 2021-01-27 | 2021-01-27 | Un systeme de recuperation et de conversion de l’energie solaire pour une serre et un procédé de contrôle du système |
FRFR2100757 | 2021-01-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2022162300A1 true WO2022162300A1 (fr) | 2022-08-04 |
Family
ID=74759159
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/FR2022/050127 WO2022162300A1 (fr) | 2021-01-27 | 2022-01-24 | Systeme de récupération et de conversion de l'énergie solaire pour une serre, serre et procédé de commande du systeme associé |
Country Status (5)
Country | Link |
---|---|
US (1) | US20240074360A1 (fr) |
EP (1) | EP4284157A1 (fr) |
CA (1) | CA3205560A1 (fr) |
FR (1) | FR3119076B1 (fr) |
WO (1) | WO2022162300A1 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023165728A1 (fr) * | 2022-03-03 | 2023-09-07 | Insolight Sa | Système optomécanique pour la régulation de la lumière et la production d'électricité |
WO2024194287A1 (fr) * | 2023-03-22 | 2024-09-26 | Voltiris Sa | Modules de production d'électricité d'origine solaire |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2345068A1 (fr) * | 1976-03-24 | 1977-10-21 | Posnansky Mario | Installation pour la culture intensive des vegetaux |
US20120067337A1 (en) * | 2010-09-21 | 2012-03-22 | Hall David R | Rotatable Panels on an Exterior of a Structure that Directs Solar Energy within the Structure |
US20170013789A1 (en) * | 2015-07-17 | 2017-01-19 | Sustainable Energy & AgricultureTechnology LLC | Enclosure Temperature Control System |
US10050584B2 (en) * | 2016-03-16 | 2018-08-14 | Hardware Labs Performance Systems, Inc. | Cooling apparatus for solar panels |
-
2021
- 2021-01-27 FR FR2100757A patent/FR3119076B1/fr active Active
-
2022
- 2022-01-24 CA CA3205560A patent/CA3205560A1/fr active Pending
- 2022-01-24 EP EP22705436.8A patent/EP4284157A1/fr active Pending
- 2022-01-24 WO PCT/FR2022/050127 patent/WO2022162300A1/fr active Application Filing
- 2022-01-24 US US18/261,835 patent/US20240074360A1/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2345068A1 (fr) * | 1976-03-24 | 1977-10-21 | Posnansky Mario | Installation pour la culture intensive des vegetaux |
US20120067337A1 (en) * | 2010-09-21 | 2012-03-22 | Hall David R | Rotatable Panels on an Exterior of a Structure that Directs Solar Energy within the Structure |
US20170013789A1 (en) * | 2015-07-17 | 2017-01-19 | Sustainable Energy & AgricultureTechnology LLC | Enclosure Temperature Control System |
US10050584B2 (en) * | 2016-03-16 | 2018-08-14 | Hardware Labs Performance Systems, Inc. | Cooling apparatus for solar panels |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023165728A1 (fr) * | 2022-03-03 | 2023-09-07 | Insolight Sa | Système optomécanique pour la régulation de la lumière et la production d'électricité |
WO2024194287A1 (fr) * | 2023-03-22 | 2024-09-26 | Voltiris Sa | Modules de production d'électricité d'origine solaire |
Also Published As
Publication number | Publication date |
---|---|
CA3205560A1 (fr) | 2022-08-04 |
FR3119076B1 (fr) | 2023-03-31 |
US20240074360A1 (en) | 2024-03-07 |
EP4284157A1 (fr) | 2023-12-06 |
FR3119076A1 (fr) | 2022-07-29 |
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