Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:


Ageing test procedure for thermal solar collectors


Summit meeting solar thermal energy on the Zugspitze

In the project “SpeedColl“ accelerated ageing test procedures for thermal solar collectors and their components are developed. This joint project is being conducted by the Research and Test Centre for Solar Thermal Systems (TZS) at the Institute for Thermodynamics and Heat Technology (ITW) by the University of Stuttgart and the Fraunhofer Institute for Solar Energy Systems (ISE) in Freiburg as well as by industrial project partners. The project consortium has now met for a “summit meeting” on the Zugspitze in order to examine the solar collectors exposed there after a two-year test operation.

On the Zugspitze

University of Stuttgart (ITW)

Due to the extreme weather conditions and the high level of UV radiation, the Zugspitze was selected as one of the six exposure locations worldwide to test solar collectors and components of solar thermal systems. The project takes up the still low level of knowledge to date regarding the ageing of solar collectors in different climate zones.

Through their operation in different surrounding conditions, such as extreme temperatures, UV radiation, salt contamination and dampness, solar collectors are the components in a thermal solar system bearing the greatest load. In order to get statements about the longevity of solar collectors under different climate conditions, these influential factors are to be reproduced through fast-track procedures in the laboratory.

It is important for investors and users that solar collectors can also withstand extreme climatic influences in the long term. The quality of the products is of great significance, in particular also for developing new markets by the German industry. SpeedColl is the first project in solar thermal energy in which many collectors and components are exposed with simultaneous climate and component monitorium in different climate zones.

No significant changes to the serial products could be ascertained by the scientists with the visual test bench inspections on the Zugspitze. The results of the climate and component monitorium also resulted in the absorption temperatures (collector temperatures) showing no significant changes after two years of exposure.

Dr.-Ing. Harald Drück, Head of Department at the Institute for Thermal Dynamics and Heat Technology (ITW), underlined the innovative character of the project and commented on the test operation on the Zugspitze: “The research institutes ITW and ISE as well as the German industry are making a decisive contribution with the project SpeedColl in order to continue to make high quality and favourably priced solar thermal collectors and systems that serve the purpose of climate protection available to the global market in the future as well.“

In view of the dramatic climate scenario depicted by the WMO (World Meteorological Organization), the use of regenerative energies to reduce the CO2 burden in the atmosphere is vital. The particularly effective heat generation through solar thermal systems is thereby given a key position when we consider that around 2/3 of the worldwide energy requirement is heat energy. Over 12 GW solar thermal output resp. approx. 17 million m² collector surface is already installed today in Germany. Each year over 1 million tons of CO2 emissions are now already avoided through this.

Further information: www.speedcoll 

Dr. Hans-Herwig Geyer, University of Stuttgart, Head of University Communication and Press Spokesperson,
Tel. 0711/685-82555, Email: hans-herwig.geyer [at]
Dr.-Ing. Stephan Fischer, University of Stuttgart, Institute for Thermal Dynamics and Heat Technology (ITW)
Tel. 0711 685-63231, Email: fischer [at]
Dipl.-Ing. Beate Vetter, University of Stuttgart, Institute for Thermal Dynamics and Heat Technology Tel. 0711 685-63245, Email: vetter [at]

Andrea Mayer-Grenu | idw - Informationsdienst Wissenschaft
Further information:

More articles from Power and Electrical Engineering:

nachricht New method increases energy density in lithium batteries
24.10.2016 | Columbia University School of Engineering and Applied Science

nachricht 'Super yeast' has the power to improve economics of biofuels
18.10.2016 | University of Wisconsin-Madison

All articles from Power and Electrical Engineering >>>

The most recent press releases about innovation >>>

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

Im Focus: Light-driven atomic rotations excite magnetic waves

Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion

Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...

Im Focus: New 3-D wiring technique brings scalable quantum computers closer to reality

Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.

"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...

Im Focus: Scientists develop a semiconductor nanocomposite material that moves in response to light

In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.

A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...

Im Focus: Diamonds aren't forever: Sandia, Harvard team create first quantum computer bridge

By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.

"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...

Im Focus: New Products - Highlights of COMPAMED 2016

COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.

In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...

All Focus news of the innovation-report >>>



Event News

#IC2S2: When Social Science meets Computer Science - GESIS will host the IC2S2 conference 2017

14.10.2016 | Event News

Agricultural Trade Developments and Potentials in Central Asia and the South Caucasus

14.10.2016 | Event News

World Health Summit – Day Three: A Call to Action

12.10.2016 | Event News

Latest News

Oasis of life in the ice-covered central Arctic

24.10.2016 | Earth Sciences

‘Farming’ bacteria to boost growth in the oceans

24.10.2016 | Life Sciences

Light-driven atomic rotations excite magnetic waves

24.10.2016 | Physics and Astronomy

More VideoLinks >>>