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    News 19.05.2014

    Rotating receiver heats up ceramic beads

    Until now, tube receivers have been used in solar tower power plants to absorb the concentrated solar rays and convert them into heat. The German Aerospace Centre (DLR) is now pursuing a new approach. In a rotating receiver, ceramic particles are evenly heated up to 1,000 degrees Celsius. The advantage of this is that the beads also act as a storage medium. The centrifugal receiver at the Jülich solar tower is scheduled to enter operation from mid-2015.  more...
     

    “Secure provision of data centres with renewable energies”

    The RenewIT project is researching how data centres can make greater use of renewable energies. That is an important goal for project partner Thorsten Urbaneck, who is a private lecturer at Chemnitz University of Technology. This is because it is estimated that data centres consume two per cent of the electricity used in Europe – and the trend is increasing.  more...
     
    Projektinfo 03/2014

    Making machine tools work more efficiently

    When machine tools process complex components, often only about 20 % of the energy deployed flows into the actual metal cutting processes. The main loads tend to be peripheral machine components, such as cooling systems or hydraulic drives. In the Maxiem project, scientists from the Technische Universtät Darmstadt and industrial partners are showing how this energy requirement can, in ideal cases, be more than halved.  more...
     

    Storing solar energy with new materials

    The interdisciplinary NEOTHERM junior research group at Otto von Guericke University in Magdeburg is developing new materials for storing thermal energy. Using new composite materials, the scientists at the Faculty of Process and Systems Engineering (FVST) want to recover and store unused solar thermal energy and waste heat from industry. This energy can be used, for example, for heating domestic hot water or for space heating.  more...
     

    “Heat pumps are ready for the smart grid”

    Over the last few years, heat pumps have become more efficient. In a recent interview, Marek Miara, head of the heat pump unit at the Fraunhofer Institute for Solar Energy Systems ISE, talked about research results and future development potential. His team has completed three large-scale monitoring projects in old and new buildings.  more...
     

    Ceramics reduce energy needed to separate air

    Cryogenic air separation, a process employed to produce oxygen, requires a lot of energy. This high energy consumption impairs the efficiency of a number of industrial processes and procedures used to separate carbon dioxide from exhaust gases. In the context of the MEM-OXYCOAL research project headed by RWTH Aachen University, scientists have developed membranes that improve the energy efficiency of oxygen separation.  more...
     
    Projektinfo 12/2013

    Increased efficiency for power supplies

    Switched-mode power supplies are used in almost every electronic device including television sets, computers and monitors. Their efficiency is 80% to over 90% depending on the build quality. About one third of the power losses are caused by alternating magnetic fields in coils and transformers. Together with industry partners, researchers at the Friedrich-Alexander-Universität Erlangen-Nürnberg looked into ways to improve the energy efficiency of these components. Extrapolated to the total number of units in operation, even small improvements can bring about significant power savings. Reduced thermal loss allows for the construction of smaller and lighter units with less material invested.  more...
     
    News 04.09.2013

    Lithium-ion batteries in mass production

    At the Karlsruhe Institute of Technology (KIT), the small-scale production of lithium-ion cells has begun. The goal in the research factory is to reduce production costs by developing process engineering for the mass market. Researchers aim to use this to help the lithium-ion batteries make a breakthrough as stationary and mobile storage facilities.  more...
     

    Bee and bumblebee begin field tests

    As part of a joint project with Vattenfall and ZAE Bayern, scientists from the TU Berlin have developed two new absorption chillers. The 50-kW unit, which the researchers have nicknamed Bee, and the larger 160-kW unit called Bumblebee use heat at a low temperature level for generating cooling energy. The prototypes are smaller, lighter and more powerful than comparable systems on the market. A field test is now starting.  more...
     
    News 13.08.2013

    Using flare gas as a fuel

    Currently, the gas which is produced when mineral oil is mined is simply flared. This creates emissions and the energy potential remains unused. In the “Syngas to Fuel” project, the Technische Universität Bergakademie Freiberg has developed a solution to the problem in collaboration with systems planner Chemieanlagenbau Chemnitz.  more...
     

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