A solar collector converts sunlight to usable heat energy for domestic hot water preparation and space heating purposes. Traditionally, the main components in solar collectors are made of metals such as copper and aluminium, which are heavy and energy intensive to produce, transport and install.
The steady growth in the solar thermal market has motivated the search for new materials in solar thermal applications. Chevron Phillips Chemicals has developed and optimized a new high-performance polyphenylene sulfide (PPS) polymer grade of Xtel® XE 4500 for Aventa's new solar collector concept. The new material meets all the requirements for producing a polymer collector that is temperature resistant, aesthetically pleasing, and cost effective.
“Aventa's solar heating system provides high comfort at low costs with a positive impact on the environment,” said John Rekstad, chairman of the board of Aventa AS. “The material developed by Chevron Phillips Chemicals is the key to success for Aventa's solar concept. We are very pleased with the progress and result of our collaborative relationship with Chevron Phillips Chemicals,” Rekstad added.
Aventa's solar collector concept demands materials suitable for permanent contact with water at medium to high temperatures under moderate pressure and variable temperature conditions. The new Xtel® PPS alloy grade has excellent hydrolytic stability and temperature resistance as well as maintains its shape, rigidity, and dimensional stability over time and temperature variation.
“With impressive elongation and impact resistance, our Xtel® XE PPS/elastomer alloys extend the traditional applications of high performance PPS and enable us to be a part of this challenging project,” said Mark Amelunke, general manager of Chevron Phillips Chemicals’ engineering polymers group. “By working closely with Aventa to understand their needs for the polymeric solar collector, we have been able to provide customer support far beyond material selection. We’ve offered processing tips, assisted with die optimization, and provided other value-added technical services,” Amelunke added.
Aventa's goal was to design and produce solar collectors of polymeric materials as architecturally appealing building modules with high dimensional flexibility for building adaptation and integration. Chevron Phillips Chemicals' new Xtel® XE 4500 has opened new possibilities with regard to design and environmental awareness.
The Aventa collectors, which come either with a black absorber, or painted with carefully chosen selective coatings in different colours, can be attractive, environmentally conscious elements added to offices, industrial or residential buildings.
About Aventa AS
Aventa AS is a Norwegian technology company, located in Oslo, with special competence in solar thermal energy. Aventa has long experience with use of polymer materials in solar thermal applications. The company provides integrated solar heating systems and advanced controllers for low temperature heating with built-in energy consumption metering and 2-way communication. For more information, visit www.aventa.no.
About Chevron Phillips Chemicals
Chevron Phillips Chemicals International NV is a wholly-owned subsidiary of Chevron Phillips Chemical Company LLC, one of the world’s top producers of olefins and polyolefins and a leading supplier of aromatics, alpha olefins, styrenics, specialty chemicals, plastic piping and polymer resins. The LLC and its affiliates own over $6 billion in assets at 34 manufacturing and research facilities in nine countries. Chevron Phillips Chemical Company LLC is equally owned by Chevron Corporation and ConocoPhillips, and is headquartered in The Woodlands, Texas. For more information about Chevron Phillips Chemical, visit www.cpchem.com.