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SOLAR_vega_energy

SOLAR_vega_energy

SOLAR_vega_energy

Product catalog summary
Introduction
The document discusses the importance of highly reflective specular surfaces in concentrating solar systems, which are crucial for achieving high energy densities by precisely concentrating solar radiation. These surfaces are used in various applications, including solar thermal electricity generation, industrial process heat, air conditioning, and seawater desalination.

Reflector Materials and Technologies
Almeco offers a range of reflector materials suitable for different solar energy applications. For glazed solar collectors, vacuum-coated products provide high levels of total and specular reflectance, with excellent durability and UV resistance. These materials achieve over 95% and 98% reflectance, respectively, using PVD vacuum coating technology.

Product Ranges
The document outlines several product ranges:
  • Indoor Reflectors: Products like vega SP195 and vega SP198 are designed for indoor or enclosed environments, offering high reflectance values.
  • Outdoor Reflectors: The WR range is designed for outdoor use, combining high reflectance with weather resistance for long-term performance.
  • Specular SWR Products: These are made with pre-anodized aluminum and a weather-resistant top coat, suitable for outdoor applications.

Applications
Reflective surfaces are used in various solar energy systems, including photovoltaic installations, where mirrors enhance sunlight exposure. Large parabolic reflectors are used for process heat generation, while smaller reflectors are suitable for vacuum tube arrays.

Product Specifications
The document provides detailed specifications for the materials used, including:
  • Base material: Pre-anodized aluminum with 99.9% purity.
  • Availability: Sheets or coils with specific dimensions and tolerances.
  • Mechanical properties: Tensile strength, proof stress, and elongation.

Performance and Testing
Almeco guarantees the reflectance of its mirrors within 3% of their original value for ten years, subject to proper maintenance. The products undergo various tests to ensure durability, including adhesion, UV resistance, and corrosion tests.

Company Overview
Almeco Group specializes in reflective and decorative aluminum products, with a focus on solar energy applications. The company operates a modern PVD coating facility in Germany, producing high-tech reflector and absorber coatings.

Certifications
Almeco is certified under ISO 9001:2008, ISO 14001:2004, and BS OHSAS:2007, ensuring quality and environmental standards.
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Catalog excerpts

SOLAR_vega_energy-2

Highly reflecting The highly reflecting specular surfaces are a key component of concentrating solar specular surfaces ­ ystems. They concentrate the solar radiation precisely to achieve extreme energy densites. s By using mirrors with their outstanding reflecting properties the performance can be increased significantly in concentrating parabolic systems (CSP) for the generation of solar thermal electricity, or process heat for industrial applications, air conditioning or sea water desalination. Performance improvements can also be reached by using mirrors in combinations with flat plate or...

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Photovoltaic installations can benefit from enhanced sunlight exposure by incorporating in their Photovoltaic systems, design mirrors to re-direct energy onto the cell surfaces. A number of designs have been solar thermal and developed to improve PV array output, ranging from full parabolic systems and tracking modules to secondary reflectors simple side reflectors on fixed arrays. , For large parabolic reflectors for process heat generation demanding high performance, with 90% solar reflectance, is the right choice. For smaller reflectors, for instance concentrators for vacuum tube arrays (CPC),...

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SOLAR_vega_energy-4

Graphs showing the spectral with the solar spectrum. Graphs showing the spectral with the solar spectrum. solar spectrum. -SOLAR SPECTRUM - vega SP195 TOTAL REFLECTANCE HEMISPHERICAL - vega SP198 TOTAL REFLECTANCE HEMISPHERICAL SOLAR SPECTRUM vega SWR686 TOTAL REFLECTANCE HEMISPHERICAL

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Total reflectance “visible range” [%] Diffuse reflectance [%] Specular reflectance [%] Application type Total solar reflectance [%] Indoor or enclosed reflectors Indoor or enclosed reflectors Indoor reflectors only Indoor reflectors only Outdoor reflectors Outdoor reflectors Outdoor reflectors * Also available reverse side lacquered ** Solar reflectance values are calculated with reference to solar spectral data air mass 1.5 *** Values independently measured by Product features and reflectivity values

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Material characteristics and Base material Pre-anodized aluminium 1090 alloy purity 99.9% Sheets or coils max. width 1,250 mm thickness 0.3 – 0.8 mm General tolerances mechanical properties Specification Nominal H18 Specification UNI-EN 485-2 All products above can be delivered in various sizes and shapes according to customer requirements All information provided is based on up-to-date values where possible. Optical values are average r ­esults from 0.4 mm metal and are published for guidance only; they may vary according to raw m ­ aterial thickness. For more detailed information please contact...

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SOLAR_vega_energy-7

Resistance testing Physical tests Cross hatch adhesion test No loss of coating adhesion Neutral salt spray Humidity resistance Falling ball impact test Corrosion tests and long term product performance ASTM B 117 < 1% reflectance loss ISO 9227 NSS after 3000 h < 0.5% reflectance change after 500 h Almeco guarantees that reflectance of the mirrors will be maintained within 3% of their original value for 10 year period.* Products with protective tape are guaranteed for six months after delivery if they are stored in a c ­ onditioned room (temperature 20-30°C and relative humidity 50-60%) and kept...

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Milan, Italy - Bernburg, Germany Goncelin, France - Atlanta, USA - Shenzhen, China ISO 9001:2008 ISO 14001:2004 BS OHSAS:2007 Regelmäßige freiwillige Überwachung KR A Almeco GmbH - Claude Breda Strasse, 3 D-06406 Bernburg - Germany Amtsgericht Stendal HRB 5020 / DE 245852413 T +49 3471 34655 00 - F +49 3471 34655 09 [email protected] - www.almecosolar.com

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.