Linear Fresnel Collector for Solar Process Heat

Prototype of a linear Fresnel collector for solar processing heat up to 250 °C, which was developed by the Soltigua company in cooperation with Fraunhofer ISE. We demonstrated our method for performance measurement under dynamic test conditions with this installation.

Solar Thermal Technology

Topics in the Business Area Solar Thermal Technology

We conduct research and development on the following topics:

For the transformation of thermal energy systems, solar thermal energy is a central component alongside energy efficiency.  How this role is interpreted in different national economies and climatic zones also depends on cost developments in production and distribution.  Research and development can make a contribution by developing more cost-effective materials, manufacturing processes and optimized complete systems. Here, not only the investment needed but also the annual operating costs play a significant role.

In our work on solar thermal technology, we are concerned with optics and surface technology to better transmit, reflect, absorb, redirect or concentrate solar radiation, depending on the application.  Components and systems technology for solar-thermal applications are developed further in all aspects: Solar-thermal flat-plate and evacuated tubular collectors find diverse applications from domestic hot water and space-heating systems to coolers and chillers.  Competition with photovoltaics for installation space means that new developments in thermal collectors combined with photovoltaic power generation are important.  Façade integration applying new flat heat pipes offers design flexibility.  Linear concentration allows operating temperatures from 150 °C up to 550 °C to be reached.  In addition to applications in large power stations for solar-thermal electricity generation, it also offers an option with simpler and less expensive variants to generate process heat, processing steam and heat to drive absorption chillers.

Energy efficiency in industrial plants also represents an important application field for solar thermal technology.  For example, we are working on improving the supply of heat by steam or other heat-transfer media, on storage units for high-temperature heat, or on increasing the efficiency of production processes with the help of innovative heat transfer.  Membrane-based processes, driven by solar or waste heat, can be used to purify industrial waste water or to concentrate residual materials so that they can be recycled better.

Fraunhofer ISE possesses expertise in materials science, component design, characterization and testing procedures, theoretical modelling and simulation, systems control up to systems technology for the different applications.

Contact

Contact Press / Media

Dr.-Ing. Wolfgang Kramer

Solar Thermal Technology, Thermal Collectors and Components, Thermal Storage for Power Plants and Industry, Storage for Solar Heating Systems and Industrial Process Heat

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5096

Werner Platzer

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Hon.-Prof. Dr. Werner Platzer

Material Research and Optics

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5983

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Dr. Peter Nitz

Thermal Systems Engineering

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5410

Fax +49 761 4588-9410

Contact Press / Media

Dr.-Ing. Joachim Koschikowski

Water Treatment, Sea and Brack Water Desalination, Material Separation in Industrial Applications

Fraunhofer ISE
Heidenhofstr. 2
79110 Freiburg

Phone +49 761 4588-5294

Fax +49 761 4588-9294

Scientific Publications - Business Area Solar Thermal Technology

 

Journal and Book Articles

 

Lectures and Conference Papers