Constructing solar thermal power plants more efficiently and cheaply
The use of high-temperature solar heat for generating electricity has become an established technology. Scientists are now currently working on further optimising the components and concepts. The BINE-Themeninfo brochure “Solar thermal power plants” (II/2013) presents the main research areas. The authors describe the bases for solar thermal power plants, storage technologies and quality assurance processes.
More than 95% of the commercially operated solar thermal power plants are parabolic trough systems. In 2017, a further one is scheduled to enter operation in the southern Moroccan town of Ouarzazate on the edge of the Sahara Desert. The fully planned and funded power plant is designed to supply up to 500 MW of electricity.
To achieve this, large parabolic mirrors will concentrate sunlight onto absorber tubes. The thermal oil flowing through the tubes will be fed into a power plant block. Here the stored heat is transferred to a water circuit. This drives a steam turbine that is used to generate electricity.
A cheaper version of the parabolic trough technology is provided by Fresnel systems. Because the incident solar rays are less concentrated in this version, the collectors have greater optical losses. A challenge for the scientists is to control the high temperatures of about 500 °C on the receiver. Another research goal is to provide constant steam parameters.
To ensure that solar thermal power plants work efficiently, the quality of components and systems must be continually checked. Here, for example, the proportion of the reflected radiation and its direction play an important role. The latter is influenced by the mirror shape and slope. In order to assess this, the scientists are deploying optical measurement processes.
The authors of the BINE-Themeninfo brochure are Professor Robert Pitz-Paal and further employees from the Institute of Solar Research at the German Aerospace Centre (DLR).
The BINE-Themeinfobrochure, which can be obtained free of charge from the BINE Information Service at FIZ Karlsruhe, is available online at www.bine.info or by calling +49 (0)228 92379-0.
About BINE Information Service
Energy research for practical applications
The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
http://www.bine.info/en/press/press-releases/press/pressemitteilung/mit-konzentr... - Download cover, press release and info-pdf
http://www.bine.info/en - BINE Informationsdienst english
Rüdiger Mack | idw - Informationsdienst Wissenschaft
Working comfortably in summer heat
02.06.2016 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
NEST: building of the future is up and running
23.05.2016 | Empa - Eidgenössische Materialprüfungs- und Forschungsanstalt
R2D2, a joint project to analyze and development high-TRL processes and technologies for manufacture of flexible organic light-emitting diodes (OLEDs) funded by the German Federal Ministry of Education and Research (BMBF) has been successfully completed.
In contrast to point light sources like LEDs made of inorganic semiconductor crystals, organic light-emitting diodes (OLEDs) are light-emitting surfaces. Their...
High resolution rotational spectroscopy reveals an unprecedented number of conformations of an odorant molecule – a new world record!
In a recent publication in the journal Physical Chemistry Chemical Physics, researchers from the Max Planck Institute for the Structure and Dynamics of Matter...
Strands of cow cartilage substitute for ink in a 3D bioprinting process that may one day create cartilage patches for worn out joints, according to a team of engineers. "Our goal is to create tissue that can be used to replace large amounts of worn out tissue or design patches," said Ibrahim T. Ozbolat, associate professor of engineering science and mechanics. "Those who have osteoarthritis in their joints suffer a lot. We need a new alternative treatment for this."
Cartilage is a good tissue to target for scale-up bioprinting because it is made up of only one cell type and has no blood vessels within the tissue. It is...
Physicists in Innsbruck have realized the first quantum simulation of lattice gauge theories, building a bridge between high-energy theory and atomic physics. In the journal Nature, Rainer Blatt‘s and Peter Zoller’s research teams describe how they simulated the creation of elementary particle pairs out of the vacuum by using a quantum computer.
Elementary particles are the fundamental buildings blocks of matter, and their properties are described by the Standard Model of particle physics. The...
A year and a half on the outer wall of the International Space Station ISS in altitude of 400 kilometers is a real challenge. Whether a primordial bacterium...
28.06.2016 | Event News
09.06.2016 | Event News
24.05.2016 | Event News
28.06.2016 | Physics and Astronomy
28.06.2016 | Life Sciences
28.06.2016 | Physics and Astronomy