ITMI20081172A1 - SOLAR ENERGY GENERATOR - Google Patents
SOLAR ENERGY GENERATOR Download PDFInfo
- Publication number
- ITMI20081172A1 ITMI20081172A1 IT001172A ITMI20081172A ITMI20081172A1 IT MI20081172 A1 ITMI20081172 A1 IT MI20081172A1 IT 001172 A IT001172 A IT 001172A IT MI20081172 A ITMI20081172 A IT MI20081172A IT MI20081172 A1 ITMI20081172 A1 IT MI20081172A1
- Authority
- IT
- Italy
- Prior art keywords
- concave mirrors
- generator according
- collector
- reference axis
- series
- Prior art date
Links
- 230000001154 acute effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- F24S23/74—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with trough-shaped or cylindro-parabolic reflective surfaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
-
- 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
- F24S2023/83—Other shapes
- F24S2023/832—Other shapes curved
-
- 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
- F24S2023/87—Reflectors layout
- F24S2023/878—Assemblies of spaced reflective elements in the form of grids, e.g. vertical or inclined reflective elements extending over heat absorbing elements
-
- 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
- F24S30/45—Arrangements for moving or orienting solar heat collector modules for rotary movement with two rotation axes
- F24S30/452—Vertical primary axis
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S40/00—Safety or protection arrangements of solar heat collectors; Preventing malfunction of solar heat collectors
- F24S40/80—Accommodating differential expansion of solar collector elements
- F24S40/85—Arrangements for protecting solar collectors against adverse weather conditions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24S—SOLAR HEAT COLLECTORS; SOLAR HEAT SYSTEMS
- F24S80/00—Details, accessories or component parts of solar heat collectors not provided for in groups F24S10/00-F24S70/00
- F24S80/50—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings
- F24S80/56—Elements for transmitting incoming solar rays and preventing outgoing heat radiation; Transparent coverings characterised by means for preventing heat loss
-
- 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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B10/00—Integration of renewable energy sources in buildings
- Y02B10/20—Solar thermal
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Thermal Sciences (AREA)
- Physics & Mathematics (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Optical Elements Other Than Lenses (AREA)
- Engine Equipment That Uses Special Cycles (AREA)
- Saccharide Compounds (AREA)
Description
DESCRIZIONE DESCRIPTION
La presente invenzione riguarda un generatore ad energia solare, ed in particolare un generatore che può essere usato per produrre energia termica e/o elettrica. The present invention relates to a solar energy generator, and in particular a generator that can be used to produce thermal and / or electrical energy.
WO 2005/116534 descrive un generatore ad energia solare, il quale comprende una pluralità di specchi concavi atti a riflettere, in una posizione operativa ideale in cui essi sono perfettamente orientati verso il sole, i raggi solari verso un collettore disposto tra la sorgente dei raggi solari e gli specchi concavi, così che la maggior parte dei raggi solari è riflessa verso il collettore con angoli acuti. WO 2005/116534 describes a solar energy generator, which comprises a plurality of concave mirrors suitable for reflecting, in an ideal operating position in which they are perfectly oriented towards the sun, the sun's rays towards a collector arranged between the source of the rays solar and concave mirrors, so that most of the sun's rays are reflected towards the collector at acute angles.
Se il generatore non è nella sua posizione operativa ideale, ad esempio per un guasto del sistema di puntamento verso il sole, i raggi solari possono essere riflessi dagli specchi concavi oltre il collettore, con notevoli problemi di sicurezza, soprattutto quando il generatore è usato in ambiti domestici o comunque non controllati. If the generator is not in its ideal operating position, for example due to a failure of the pointing system towards the sun, the sun's rays can be reflected by the concave mirrors beyond the collector, with considerable safety problems, especially when the generator is used in domestic or non-controlled areas.
Scopo della presente invenzione è pertanto quello di fornire un generatore esente da tali inconvenienti. Detto scopo viene conseguito con un generatore le cui caratteristiche principali sono specificate nella prima rivendicazione, mentre altre caratteristiche sono specificate nelle restanti rivendicazioni. The object of the present invention is therefore to provide a generator free from such drawbacks. Said object is achieved with a generator whose main characteristics are specified in the first claim, while other characteristics are specified in the remaining claims.
Grazie alla particolare disposizione degli specchi concavi, il generatore secondo la presente invenzione consente di impedire la riflessione dei raggi solari all’esterno del generatore, anche se quest’ultimo non è nella posizione operativa ideale, così da migliorare la sua sicurezza. Thanks to the particular arrangement of the concave mirrors, the generator according to the present invention makes it possible to prevent the reflection of sunlight outside the generator, even if the latter is not in the ideal operating position, so as to improve its safety.
La particolare disposizione degli specchi concavi consente anche di ridurre la resistenza al vento del generatore. The particular arrangement of the concave mirrors also allows to reduce the wind resistance of the generator.
Il generatore può inoltre essere provvisto di schermi atti ad impedire la riflessione dei raggi solari verso altri specchi concavi e/o dietro il generatore, così da migliorare ulteriormente la sua sicurezza. Uno di questi schermi comprende preferibilmente una pluralità di alette, così da ridurre ulteriormente la resistenza al vento del generatore. The generator can also be provided with screens designed to prevent the reflection of the sun's rays towards other concave mirrors and / or behind the generator, so as to further improve its safety. One of these screens preferably comprises a plurality of fins, so as to further reduce the wind resistance of the generator.
Gli specchi concavi sono preferibilmente disposti in modo da essere separati da un piano sostanzialmente parallelo ad un asse di riferimento parallelo ai raggi solari, così da ottimizzare la concentrazione dei raggi solari verso il collettore. The concave mirrors are preferably arranged so as to be separated by a plane substantially parallel to a reference axis parallel to the sun's rays, so as to optimize the concentration of the sun's rays towards the collector.
Ulteriori vantaggi e caratteristiche del generatore secondo la presente invenzione risulteranno evidenti agli esperti del ramo dalla seguente descrizione dettagliata e non limitativa di una sua forma realizzativa con riferimento agli annessi disegni in cui: Further advantages and characteristics of the generator according to the present invention will become evident to those skilled in the art from the following detailed and non-limiting description of an embodiment thereof with reference to the attached drawings in which:
la figura 1 mostra una vista prospettica del generatore; Figure 1 shows a perspective view of the generator;
- la figura 2 mostra una vista laterale schematica del generatore di figura 1 in una prima posizione operativa; e Figure 2 shows a schematic side view of the generator of Figure 1 in a first operating position; And
la figura 3 mostra una vista laterale schematica del generatore di figura 1 in una seconda posizione operativa. Figure 3 shows a schematic side view of the generator of Figure 1 in a second operating position.
Facendo riferimento alle figure 1 e 2, si vede che il generatore secondo la presente invenzione comprende in modo noto una pluralità di specchi concavi 1, Γ atti a riflettere, in una posizione operativa in cui essi sono orientati verso il sole, i raggi solari 2 verso un collettore 3. In una posizione operativa ideale, mostrata in figura 2, i raggi solari 2, prima di essere riflessi dagli specchi concavi 1, Γ, sono paralleli ad un asse di riferimento R passante per il collettore 3. Una prima struttura di supporto, ad esempio comprendente una trasversa 4 ed una pluralità di pannelli laterali 5, consente di ruotare gli specchi concavi 1, Γ intorno ad un asse sostanzialmente orizzontale in modo da variare il loro angolo zenitale, mentre una seconda struttura di supporto, ad esempio comprendente un montante verticale 6, consente di ruotare gli specchi concavi 1, Γ intorno ad un asse sostanzialmente verticale, in modo da variare il loro angolo azimutale. With reference to figures 1 and 2, it can be seen that the generator according to the present invention comprises in a known way a plurality of concave mirrors 1, Γ adapted to reflect, in an operative position in which they are oriented towards the sun, the sun's rays 2 towards a collector 3. In an ideal operating position, shown in Figure 2, the solar rays 2, before being reflected by the concave mirrors 1, Γ, are parallel to a reference axis R passing through the collector 3. A first structure of support, for example comprising a transverse 4 and a plurality of side panels 5, allows the concave mirrors 1, Γ to rotate around a substantially horizontal axis so as to vary their zenith angle, while a second support structure, for example comprising a vertical upright 6 allows the concave mirrors 1, Γ to be rotated around a substantially vertical axis, so as to vary their azimuth angle.
Secondo l’invenzione, gli specchi concavi 1, Γ sono disposti tra la sorgente dei raggi solari 2 ed il collettore 3 così da riflettere nella loro posizione operativa ideale la maggior parte dei raggi solari 2 verso il collettore 3 con angoli a compresi tra 80° e 180°, in particolare compresi tra 170° e 90°. La concavità degli specchi concavi 1, Γ è rivolta verso l’asse di riferimento R. Gli specchi concavi sono raggruppati in almeno due serie contrapposte 1 o Γ di specchi, in modo che la concavità di una serie sia rivolta verso l’altra, e viceversa. According to the invention, the concave mirrors 1, Γ are arranged between the source of the solar rays 2 and the collector 3 so as to reflect in their ideal operating position most of the solar rays 2 towards the collector 3 with angles a comprised between 80 ° and 180 °, in particular between 170 ° and 90 °. The concavity of the concave mirrors 1, Γ faces the reference axis R. The concave mirrors are grouped into at least two opposing 1 or Γ series of mirrors, so that the concavity of one series faces the other, and vice versa.
Un primo schermo 7 è disposto tra le due serie di specchi concavi 1, Γ per impedire la riflessione dei raggi solari 2 da una serie di specchi all’altra, e viceversa. Il primo schermo 7 è disposto lungo l’asse di riferimento R e comprende almeno una parete divisoria. La traversa 4 è attraversata dall’asse di riferimento R, è sostanzialmente perpendicolare a quest’ultimo ed attraversa il primo schermo 7. Un pannello solare 8 è disposto lungo l’asse di riferimento R dalla parte opposta rispetto al collettore 3, in modo che il primo schermo 7 è disposto tra il pannello solare 8 ed il collettore 3. Il pannello solare 8 comprende almeno una cella fotovoltaica ed è sostanzialmente perpendicolare all’asse di riferimento R. Un secondo schermo 9 è disposto dietro il collettore 3 per impedire la riflessione dei raggi solari 2 oltre il collettore 3. Il secondo schermo 9 comprende una pluralità di alette sostanzialmente parallele all’asse di riferimento R. Gli specchi concavi 1, Γ hanno una forma sostanzialmente rettangolare e sono incurvati per ottenere settori cilindrici. Due specchi concavi adiacenti 1 o Γ di una serie sono disposti in modo da essere separati da un piano P sostanzialmente parallelo all’asse di riferimento R, due bordi rettilinei di due specchi concavi adiacenti 1 o l’di una serie essendo quindi disposti sul piano P. Inoltre, un piano T passante per i bordi rettilinei esterni, ovvero più lontani dal collettore 3, di due specchi concavi adiacenti 1 o l’di una serie coincide sostanzialmente con il piano perpendicolare alla tangente (t) della curvatura in corrispondenza del bordo esterno dello specchio concavo 1 o Γ più distante dall’asse di riferimento R, in modo che i raggi solari 2 vengano riflessi degli specchi concavi 1, Γ verso l’asse di riferimento R. A first screen 7 is arranged between the two series of concave mirrors 1, Γ to prevent the reflection of solar rays 2 from one series of mirrors to the other, and vice versa. The first screen 7 is arranged along the reference axis R and includes at least one dividing wall. The crosspiece 4 is crossed by the reference axis R, is substantially perpendicular to the latter and crosses the first screen 7. A solar panel 8 is arranged along the reference axis R on the opposite side with respect to the collector 3, so that the first screen 7 is arranged between the solar panel 8 and the collector 3. The solar panel 8 comprises at least one photovoltaic cell and is substantially perpendicular to the reference axis R. A second screen 9 is arranged behind the collector 3 to prevent reflection of the solar rays 2 beyond the collector 3. The second screen 9 comprises a plurality of fins substantially parallel to the reference axis R. The concave mirrors 1, Γ have a substantially rectangular shape and are curved to obtain cylindrical sectors. Two adjacent concave mirrors 1 or Γ of a series are arranged to be separated by a plane P substantially parallel to the reference axis R, two rectilinear edges of two adjacent concave mirrors 1 or the of a series thus being arranged on the plane P. Furthermore, a plane T passing through the external rectilinear edges, that is, farthest from the collector 3, of two adjacent concave mirrors 1 or the of a series substantially coincides with the plane perpendicular to the tangent (t) of the curvature at the edge of the concave mirror 1 or Γ further away from the reference axis R, so that the sun's rays 2 are reflected by the concave mirrors 1, Γ towards the reference axis R.
Facendo riferimento alla figura 3, si vede che quando il generatore non è nella sua posizione operativa ideale, ovvero quando l’asse di riferimento R non è allineato con i raggi solari 2, questi ultimi vengono riflessi dagli specchi concavi 1, Γ anche verso gli schermi 7 e 9, con angoli a anche minori di 80°. Referring to Figure 3, it can be seen that when the generator is not in its ideal operating position, i.e. when the reference axis R is not aligned with the solar rays 2, the latter are reflected by the concave mirrors 1, Γ also towards the screens 7 and 9, with angles a even less than 80 °.
Eventuali varianti e/o aggiunte possono essere apportate dagli esperti del ramo alla forma realizzativa dell’invenzione qui descritta ed illustrata restando nell’ambito delle seguenti rivendicazioni. Any variations and / or additions can be made by those skilled in the art to the embodiment of the invention described and illustrated here, remaining within the scope of the following claims.
Claims (11)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001172A ITMI20081172A1 (en) | 2008-06-27 | 2008-06-27 | SOLAR ENERGY GENERATOR |
PCT/EP2009/057609 WO2009156331A2 (en) | 2008-06-27 | 2009-06-18 | Solar energy generator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT001172A ITMI20081172A1 (en) | 2008-06-27 | 2008-06-27 | SOLAR ENERGY GENERATOR |
Publications (1)
Publication Number | Publication Date |
---|---|
ITMI20081172A1 true ITMI20081172A1 (en) | 2009-12-28 |
Family
ID=40301872
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT001172A ITMI20081172A1 (en) | 2008-06-27 | 2008-06-27 | SOLAR ENERGY GENERATOR |
Country Status (2)
Country | Link |
---|---|
IT (1) | ITMI20081172A1 (en) |
WO (1) | WO2009156331A2 (en) |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2791214A (en) * | 1953-03-18 | 1957-05-07 | Poliansky Alejandro | Apparatus for utilization of solar heat |
DE2709508A1 (en) * | 1977-03-04 | 1978-09-07 | Sergiu Dipl Ing Caftanat | Solar energy collector with thermo-ionic converter - for direct conversion of energy to electricity |
US4238246A (en) * | 1979-06-04 | 1980-12-09 | North American Utility Construction Corp. | Solar energy system with composite concentrating lenses |
US4347834A (en) * | 1980-11-28 | 1982-09-07 | York Bernard H | Variable entropy solar energy harvester |
FR2518718A1 (en) * | 1981-12-23 | 1983-06-24 | Djelalian Madeleine | PROCESS FOR COLLECTING AND EXPLOITING THE GLOBAL SOLAR RADIATION TO THE MAXIMUM, DEVICES FOR CARRYING OUT SAID METHOD AND SOLAR SENSORS THEREOF |
SU1023270A1 (en) * | 1982-01-28 | 1983-06-15 | Vasilev Viktor P | Radiant energy concentrator and method producing thereof |
US4883340A (en) * | 1988-08-02 | 1989-11-28 | Solar Lighting Research, Inc. | Solar lighting reflector apparatus having slatted mirrors and improved tracker |
US6620995B2 (en) * | 2001-03-30 | 2003-09-16 | Sergiy Victorovich Vasylyev | Non-imaging system for radiant energy flux transformation |
US20020174671A1 (en) * | 2001-05-22 | 2002-11-28 | Ken Wilkinson | Solar radiation screen for air conditioner condenser |
US20030137754A1 (en) * | 2001-12-17 | 2003-07-24 | Vasylyev Sergiy Victorovich | Multistage system for radiant energy flux transformation |
-
2008
- 2008-06-27 IT IT001172A patent/ITMI20081172A1/en unknown
-
2009
- 2009-06-18 WO PCT/EP2009/057609 patent/WO2009156331A2/en active Application Filing
Also Published As
Publication number | Publication date |
---|---|
WO2009156331A3 (en) | 2010-06-24 |
WO2009156331A2 (en) | 2009-12-30 |
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