WO2015111995A1 - Concentrateur solaire parabolique à segmentation plane - Google Patents

Concentrateur solaire parabolique à segmentation plane Download PDF

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Publication number
WO2015111995A1
WO2015111995A1 PCT/MX2014/000021 MX2014000021W WO2015111995A1 WO 2015111995 A1 WO2015111995 A1 WO 2015111995A1 MX 2014000021 W MX2014000021 W MX 2014000021W WO 2015111995 A1 WO2015111995 A1 WO 2015111995A1
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WO
WIPO (PCT)
Prior art keywords
energy
aluminum
segmented
design
segments
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.)
Ceased
Application number
PCT/MX2014/000021
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English (en)
Spanish (es)
Inventor
Rubén Carlos OVIEDO MONTAÑO
José Martín VELEZ DE LA ROCHA
Diego Francisco ENCINAS LUNA
Dino Alejandro Pardo Guzman
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PCT/MX2014/000021 priority Critical patent/WO2015111995A1/fr
Publication of WO2015111995A1 publication Critical patent/WO2015111995A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24S23/71—Arrangements for concentrating solar-rays for solar heat collectors with reflectors with parabolic reflective surfaces
    • 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
    • F24S2023/874—Reflectors formed by assemblies of adjacent similar reflective facets
    • 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

Definitions

  • Concentrated Solar Energy systems are optical systems whose function is to concentrate a very large area of solar incidence and redirect it into a much smaller area that ranges from tens to hundreds and up to thousands of times the amount that normally affects the earth's crust.
  • thermodynamic cycles such as the Rankin cycle. It is also used to concentrate this energy and convert it into heat for processes of Casting of materials, preheating of materials and fluids for secondary processes.
  • optical systems that can contain or use various methods such as the use of lenses, use of mirrors, and even more complex such as the use of segmented reflectors.
  • the use of the above will depend many times on the magnitude of the project, and the geometry of the same optical design.
  • the geometry used will also depend on the concentration factor that is needed or has been calculated or contemplated for the use of this energy.
  • concentration factor is the number of times one increases the irradiance that is normally around 800- ⁇ to 1000- ⁇ , commonly called soles.
  • Figure 1 shows the design and basic function of the object of the present invention.
  • Figure 2 represents the image of the simulation of the parabola with the design segments.
  • Figure 3 is a top view of the solar concentrator with its segmented areas.
  • Figure 4 constitutes the perspective of a module of the main structure or skeleton.
  • Figure 5 illustrates the top view of the entire structure.
  • Figure 6 shows a side view of the complete solar concentrator coupled to the clamping arm of the focal element.
  • an optical system designed to concentrate the energy needed to raise the temperature of a fluid above 600 ° C was designed. And it is constituted by a parabolic solar concentrator with segmentation that allows the incidence of solar radiation in an area no larger than 6 "in diameter.
  • Figure 1 shows the design of the concentrator 1 that geometrically comprises a segmented parabola. Due to the complexity of obtaining and building reflectors in one piece, this approach is more appropriate because the manufacture of facets or segments 2 of this reflector is simpler and economically viable. For this stage of the design the reflectors were selected flat but if they were considered with a curvature which is possible to manufacture more easily due to the size, it would be possible to have an efficiency greater than that obtained with the flat reflectors. At our calculated focal point we will place our heat absorption mechanism and define it as the object that will be in charge of working in the optical and thermal interface, where the index light on the surface of this and is transformed into heat energy.
  • the average irradiance is around 900 - ⁇ .
  • the reflectance of aluminum is above 90% along the near and visible UV spectrum until it reaches near infrared and once it falls below 88% at near infrared near 800nm it rises again during almost the entire spectrum (NIR) until leaving this near IR and reaching the far IR tending to reflect 100%.
  • Most of the spectrum that provides energy and promotes the heating of a material by means of transformation into thermal energy is the Infrared spectrum. Therefore, aluminum is an easy to obtain material, practically viable in price and with a good reflectivity for this application. If an average of 90% reflectivity is considered along the useful spectrum of aluminum as a reflector, a total reflected energy of 13,285kw is obtained
  • the design of the segmented parabola that was designed contains a total of 2600 segments, with an arrangement of 20 segmented ring sections in 130 parts. Recalculating the required area by the absorption surface, considering a concentration factor of 500 soles:
  • This value is the maximum that the area of the absorption surface must have in order to ensure the concentration factor.
  • Figure 4 represents the main structure whose fundamental role is to provide the easy positioning of the segments to form the segmented parabolic reflector.
  • Figure 5 shows the complete design of the structure already assembled in all its segments. This design provides structural rigidity and a large clamping surface for reflectors consisting of 17 rings segmented into 58 parts. Each of the ribs is made of 6061 T6 type aluminum in 1 ⁇ 4 "plate and is joined to the next rib by means of curved segments of 2" diameter tubular profile 80 in aluminum type 6061 t6 aluminum.
  • the complete structure consists of 17 simple sections and a double rib section which serves to support the weight and provide the necessary rigidity for the support structure of the absorption device.
  • the central structure for the exchanger is designed in such a way that it helps us align and position the absorption surface. It contains a hall for easy installation and alignment of this.
  • Figure 6 shows the support for the selected collector. With this support the height is conserved but by means of a fastening of screws made to measure with safety locknuts it is possible to align and correct considerable gaps that may arise due to tolerances that occur in the manufacturing process. In this way with this design we can correct the alignment with 2 degrees of freedom to match the calculated focal point of our optical design. This allows to have a movement in the z axis that is the axis that we will consider parallel to the incident solar rays within our optical system.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

La présente invention concerne un collecteur d'énergie solaire parabolique présentant des miroirs segmentés, conçu pour concentrer en un point très réduit l'énergie captée. L'invention concerne également le calcul et la conception d'un système optique capable de concentrer l'énergie nécessaire pour pouvoir élever la température d'un fluide à 10 litres par minutes au-dessus de 600°C. Elle concerne aussi la conception d'une structure permettant de supporter et de construire un tel système optique.
PCT/MX2014/000021 2014-01-27 2014-01-27 Concentrateur solaire parabolique à segmentation plane Ceased WO2015111995A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/MX2014/000021 WO2015111995A1 (fr) 2014-01-27 2014-01-27 Concentrateur solaire parabolique à segmentation plane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/MX2014/000021 WO2015111995A1 (fr) 2014-01-27 2014-01-27 Concentrateur solaire parabolique à segmentation plane

Publications (1)

Publication Number Publication Date
WO2015111995A1 true WO2015111995A1 (fr) 2015-07-30

Family

ID=53681712

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/MX2014/000021 Ceased WO2015111995A1 (fr) 2014-01-27 2014-01-27 Concentrateur solaire parabolique à segmentation plane

Country Status (1)

Country Link
WO (1) WO2015111995A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US820127A (en) * 1905-02-13 1906-05-08 Charles Henry Pope Apparatus for the utilization of solar heat.
FR1156873A (fr) * 1956-06-08 1958-05-22 Gouvernement General De L Alge Appareil pour concentrer l'énergie solaire
FR2462790A1 (fr) * 1979-08-03 1981-02-13 Sicopa Reflecteurs paraboliques orientables et procedes et dispositif pour les fabriquer
US4743095A (en) * 1987-06-25 1988-05-10 Dane John A Clip fasteners for parabolic dish reflector panels
KR20130013074A (ko) * 2011-07-27 2013-02-06 주식회사 영원신소재 집광기용 에프알피 반사판의 제조방법 및 이를 이용한 파라볼릭형 집광기

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US820127A (en) * 1905-02-13 1906-05-08 Charles Henry Pope Apparatus for the utilization of solar heat.
FR1156873A (fr) * 1956-06-08 1958-05-22 Gouvernement General De L Alge Appareil pour concentrer l'énergie solaire
FR2462790A1 (fr) * 1979-08-03 1981-02-13 Sicopa Reflecteurs paraboliques orientables et procedes et dispositif pour les fabriquer
US4743095A (en) * 1987-06-25 1988-05-10 Dane John A Clip fasteners for parabolic dish reflector panels
KR20130013074A (ko) * 2011-07-27 2013-02-06 주식회사 영원신소재 집광기용 에프알피 반사판의 제조방법 및 이를 이용한 파라볼릭형 집광기

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