In Germany, industrial process heat comprises around 10% of the energy requirements. Part of it can be generated with solar thermal systems. Using twelve collectors that track the sun’s position, a metal processing company in Ennepetal, Germany, has for the first time generated saturated steam and integrated it into an existing steam network.
The pilot system is presented in the new BINE-Projektinfo brochure “The sunny side of saturated steam” (11/2011). In this research project, the process’s operational basis for utilising solar process heat was tested and optimised, whereby a particular focus was on the future use of such systems in more southern parts of the globe.
Saturated steam is steam produced at the saturation temperature and is used in many industrial production processes up to 200 °C. In the pilot system, steam is generated directly in the absorbers within the parabolic trough collectors, thus eliminating the need for a special heat exchanger. This improves the efficiency. A company in the aluminium-finishing sector has integrated the solar steam generator into its existing steam network. Here, the steam is used to quickly heat various chemical baths to temperatures between 60 and 110 °C. As expected, the solar yields from this pilot system were relatively low, which is partly due to the limited collector surface area. The project itself, however, was deemed to be successful because it enabled a highly promising process for generating and directly feeding solar steam to be realised and tested in long-term operation. The process could also be used in other sectors for drying and heating processes and for solar refrigeration.
In order to achieve temperatures above 100 °C with solar heat, concentrating collectors are deployed. The pilot system uses parabolic trough collectors – a technology in which German companies are among the best in the world. The BINE Projektinfo brochure “The sunny side of saturated steam” (11/2011), which can be obtained free of charge from the BINE Information Service at FIZ Karlsruhe, is available online at www.bine.info.Press contact
About FIZ Karlsruhe
Rüdiger Mack | idw
Robot on demand: Mobile machining of aircraft components with high precision
06.12.2016 | Fraunhofer IFAM
IHP presents the fastest silicon-based transistor in the world
05.12.2016 | IHP - Leibniz-Institut für innovative Mikroelektronik
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
The Max Planck Institute for Physics (MPP) is opening up a new research field. A workshop from November 21 - 22, 2016 will mark the start of activities for an innovative axion experiment. Axions are still only purely hypothetical particles. Their detection could solve two fundamental problems in particle physics: What dark matter consists of and why it has not yet been possible to directly observe a CP violation for the strong interaction.
The “MADMAX” project is the MPP’s commitment to axion research. Axions are so far only a theoretical prediction and are difficult to detect: on the one hand,...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
07.12.2016 | Earth Sciences
07.12.2016 | Earth Sciences
07.12.2016 | Materials Sciences