Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Innovative concentrated photovoltaic module has housing made of strong, robust DuPont™ Rynite® PET

10.09.2008
The housing for a new and innovatively-designed concentrated photovoltaic module, developed by Concentración Solar La Mancha S.L., of Manzanares (Ciudad Real), Spain, is moulded from DuPont™ Rynite® polyethylene terephthalate (PET).

The material was selected due to its exceptionally low warpage, high stiffness and excellent electrical insulating properties. One of the first commercial installations of the CPV modules is scheduled for September 2008 at the ISFOC (Instituto de Sistemas Fotovoltaicos de Concentración) in Puertollano (Ciudad Real), with plans for a second, 1 MW-rated unit in Castilla La Mancha Community in due course.


Photo: DuPont
The large housing for the concentrated photovoltaic module, measuring 83.3 cm x 56.5 cm, is moulded from DuPont™ Rynite® polyethylene terephthalate (PET) due to the material’s good dimensional stability, low distortion, attractive surface qualities and excellent melt flow.

Concentrated photovoltaic ( or CPV) uses mirrors or lenses to ‘concentrate’ or focus light from a relatively broad collection area onto a small area (as little as 1 sq. cm) of active semiconductor PV material based on Group III and V elements in the periodic table. These systems show very high cell conversion efficiencies of over 36 percent.

The concentrated photovoltaic modules, developed by the Spanish start-up company Concentración Solar La Mancha S.L., consist of six concentrator elements and automatically track the sun’s movement across the sky to within 0.2° of accuracy. Such precision enables them to achieve efficiency levels of 20 to 24 percent in terms of electricity production, compared to 15 to 16 percent for modules with conventional silicon cells.

They are housed and supported in a frame moulded from a mica- and glass-reinforced grade of DuPont™ Rynite® polyethylene terephthalate (PET), selected as an alternative to powder-coated aluminium. “We were clear from the outset that we wanted to replace metal with a high performance polymer due to the benefits associated with the change, including corrosion resistance, design flexibility and lower processing cost and material costs. Through the integration of additional functions in the housing, we were able to reduce the number of manufacturing steps,” explains Miguel Trinidad Aragon, CEO of Concentración Solar La Mancha. Rynite® 935 BK505 was chosen for the application due to its exceptionally low warpage, high stiffness and excellent electrical insulating properties. Exposed to around-the-clock outdoor weather conditions, the material was required to provide excellent heat (temperatures of up to 85 °C) and UV resistance, as well as the structural support required for the entire CPV module to withstand high winds.

Fundamental to the project’s success has been the close working partnership between plastic injection-moulding specialist Teknia Plasticos Martos S.A.U of Jaén, Spain, Concentración Solar La Mancha and DuPont. Teknia worked closely with DuPont on mould design – the tool was actually produced in China and prepared within the shortest of time frames thanks to the support of DuPont China. “Despite the housing’s large dimensions (83.3 cm x 56.5 cm), complicated shape and the required wall thickness (3 mm), the excellent melt flow of Rynite® ensures the uniform filling on the mould cavity and the consistent production of moulded parts with good dimensional stability, low distortion and attractive surface qualities within short cycle times,” comments David Peña, development leader at Teknia Plasticos Martos.

The DuPont Engineering Polymers business manufactures and sells Crastin® PBT and Rynite® PET thermoplastic polyester resins, Delrin® acetal resins, Hytrel® thermoplastic polyester elastomers, DuPont™ ETPV engineering thermoplastic vulcanizates, Minlon® mineral reinforced nylon resins, Thermx® PCT polycyclohexylene dimethyl terephthalate, Tynex® filaments, Vespel® parts and shapes, Zenite® LCP liquid crystal polymers, Zytel® nylon resins and Zytel® HTN high-performance polyamides. These products serve global markets in the aerospace, appliance, automotive, consumer, electrical, electronic, healthcare, industrial, sporting goods and many other diversified industries.

DuPont is a science-based products and services company. Founded in 1802, DuPont puts science to work by creating sustainable solutions essential to a better, safer, healthier life for people everywhere. Operating in more than 70 countries, DuPont offers a wide range of innovative products and services for markets including agriculture and food; building and construction; communications; and transportation.

The DuPont Oval, DuPont™, The miracles of science™ and Rynite® are registered trademarks or trademarks of E.I. du Pont de Nemours and Company or its affiliates.

This press release is based on information provided by:
Concentración Solar La Mancha S.L.
Polígono Industrial Calle D s/n
13200 Manzanares (Ciudad Real)
Spain
Tel. +34 926 64 74 14
Fax. +34 926 62 06 74
Email: info@cslamancha.com

Horst Ulrich Reimer | Du Pont
Further information:
http://www.cslamancha.com
http://www.dupont.com

Further reports about: CPV Concentrated photovoltaic Crastin® Delrin® DuPont Hytrel® Rynite® PET Zytel

More articles from Materials Sciences:

nachricht A new manufacturing process for aluminum alloys
19.06.2019 | DOE/Pacific Northwest National Laboratory

nachricht Innovative powder revolutionises 3D metal printing
19.06.2019 | Technische Universität Graz

All articles from Materials Sciences >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Successfully Tested in Praxis: Bidirectional Sensor Technology Optimizes Laser Material Deposition

The quality of additively manufactured components depends not only on the manufacturing process, but also on the inline process control. The process control ensures a reliable coating process because it detects deviations from the target geometry immediately. At LASER World of PHOTONICS 2019, the Fraunhofer Institute for Laser Technology ILT will be demonstrating how well bi-directional sensor technology can already be used for Laser Material Deposition (LMD) in combination with commercial optics at booth A2.431.

Fraunhofer ILT has been developing optical sensor technology specifically for production measurement technology for around 10 years. In particular, its »bd-1«...

Im Focus: The hidden structure of the periodic system

The well-known representation of chemical elements is just one example of how objects can be arranged and classified

The periodic table of elements that most chemistry books depict is only one special case. This tabular overview of the chemical elements, which goes back to...

Im Focus: MPSD team discovers light-induced ferroelectricity in strontium titanate

Light can be used not only to measure materials’ properties, but also to change them. Especially interesting are those cases in which the function of a material can be modified, such as its ability to conduct electricity or to store information in its magnetic state. A team led by Andrea Cavalleri from the Max Planck Institute for the Structure and Dynamics of Matter in Hamburg used terahertz frequency light pulses to transform a non-ferroelectric material into a ferroelectric one.

Ferroelectricity is a state in which the constituent lattice “looks” in one specific direction, forming a macroscopic electrical polarisation. The ability to...

Im Focus: Determining the Earth’s gravity field more accurately than ever before

Researchers at TU Graz calculate the most accurate gravity field determination of the Earth using 1.16 billion satellite measurements. This yields valuable knowledge for climate research.

The Earth’s gravity fluctuates from place to place. Geodesists use this phenomenon to observe geodynamic and climatological processes. Using...

Im Focus: Tube anemone has the largest animal mitochondrial genome ever sequenced

Discovery by Brazilian and US researchers could change the classification of two species, which appear more akin to jellyfish than was thought.

The tube anemone Isarachnanthus nocturnus is only 15 cm long but has the largest mitochondrial genome of any animal sequenced to date, with 80,923 base pairs....

All Focus news of the innovation-report >>>

Anzeige

Anzeige

VideoLinks
Industry & Economy
Event News

SEMANTiCS 2019 brings together industry leaders and data scientists in Karlsruhe

29.04.2019 | Event News

Revered mathematicians and computer scientists converge with 200 young researchers in Heidelberg!

17.04.2019 | Event News

First dust conference in the Central Asian part of the earth’s dust belt

15.04.2019 | Event News

 
Latest News

A new force for optical tweezers awakens

19.06.2019 | Physics and Astronomy

New AI system manages road infrastructure via Google Street View

19.06.2019 | Information Technology

A new manufacturing process for aluminum alloys

19.06.2019 | Materials Sciences

VideoLinks
Science & Research
Overview of more VideoLinks >>>