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vega_prime

Product catalog summary

Composite Mirror for CSP Overview
The composite mirror for CSP (Concentration Solar Power) is constructed using vega WR highly reflective, weather-resistant aluminum, combined with a plastic core and a corrosion-resistant stabilizing aluminum sheet on the back. It can be used flat or curved to meet specific design requirements, offering flexibility, lightweight, and mechanical resistance. The mirror is available in various configurations regarding size, thickness, and rigidity, with a maximum size of 1250 mm x 6000 mm.

Applications
The mirror is suitable for various CSP applications, including low concentration photovoltaic systems, Fresnel systems, parabolic trough collectors, and heliostats for central receiver tower plants.

Technical Specifications

High reflectance layers are deposited on a substrate of mirror-finished, brightened, and anodized high-purity aluminum.
The PVD applied reflection enhancing system includes a layer of 99.99% pure aluminum with two transparent optical layers, increasing total reflectance to over 95%.
The top coat is highly transparent, hard, and weather-resistant, maintaining high reflectance performance (>93% TR).

Standard Dimensions and Properties

Aluminum thickness ranges from 0.30 mm to 0.50 mm.
Panel weight varies from 2.9 kg/m² to 7.3 kg/m².
Rigidity ranges from 291 kNcm²/m to 5,011 kNcm²/m.
Operational temperature range: -40°C to +80°C.
Total solar reflectance: 89.9%.
Total reflectance in the visible range: >93%.

Durability and Environmental Tests

Cross hatch adhesion test shows no loss of coating adhesion.
Falling ball impact test shows no coating failure.
UV resistance test shows <0.5% reflectance change in 1,000 hours.
Neutral salt spray test shows <1% reflectance change in 3,000 hours.
Humidity resistance test shows <0.5% reflectance change in 500 hours.

Certifications
The product is certified under ISO 9001:2008, ISO 14001:2004, and BS OHSAS:2007, with regular voluntary monitoring by DEKRA Certification.

Catalog excerpts

vegaprime is a composite mirror made using vega WR highly reflective weather resistant aluminium, combined with a plastic core and a corrosion resistant stabilizing aluminum sheet on the back side. The product can be used flat or can be curved to meet special design requirements. Customers can be provided with the complete mirror ready for mounting on a space frame support structure. Low mirror weight simplifies the construction process and mounting requirements, significantly reducing costs. The exact shape and dimensional characteristics can be designed to meet customer offers an excellent...

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Technical data Environmental tests - SOLAR SPECTRUM - vega IAR193 TOTAL REFLECTANCE HEMISPHERICAL - vega IAR193 DIFRJSE REFLECTANCE - vega IAR193 SPECULAR RER£CTANCE Graphs showing the spectral diffuse reflectance of vega WR193 compared with the solar spectrum.

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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 ze Almeco Solar - Claude Breda Strasse, 3 D-06406 Bernburg - Germany Ph: +49 89 147296.0 - Fax: +49 89 147296.72 [email protected] - www.almecosolar.com C e rtifi c a ti o n rtifi z i e rt S305 – ENG – 02/2013 DE

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