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    Research funding for the energy turnaround increasing

    Energy research contributes towards the development of the processes and technologies necessary for achieving the goals of the energy turnaround. The German government has been continuously increasing funding for energy research since 2006. In 2013 alone, it spent 100 million euros more on this than in the prior year. This reinforced above all the research areas of energy efficiency and renewable energy sources. It provided just under 300 million euros for each of these subjects.  more...
     

    Energy-saving production of special-purpose glass

    Glass production is very energy-intensive. Depending on the size and efficiency of the melting furnace, it requires roughly four to nine gigajoules per tonne. Researchers at Schott are using a new method to optimise the refinement step in the production of special-purpose glass. Using an uncooled crucible saves about 40 per cent energy.  more...
     
    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...
     

    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...
     

    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...
     
    Projektinfo 03/2013

    Energy-efficient finishing in mechanical engineering

    When producing machine components, the grinding stage is a production process with comparatively low energy efficiency. Up to 90% of the energy deployed is released as frictional heat. Large amounts of lubricants and coolants flood the workpieces and tools to cool them. The supply of coolants and their processing require enormous expenditure, including in terms of the energy. Researchers from industry and science have therefore jointly developed new processes that produce significant savings potential with minimum lubrication.  more...
     

    Getting things moving with little energy

    47 per cent of the net electricity consumed in Germany is used by industry. Particularly in automation technology, robot arms would not move without drive energy and heavy components would remain at a standstill in the production. A potential study recommends new solutions for energy optimised system operations. The intention is to increase the energy productivity of the electrical and pneumatic drive technology by up to 50 per cent.  more...
     

    Ironing bed sheets in economy mode

    Laundries consume a total of around 2 kWh of energy per kg of linen; 90 % of this energy is used for generating heat. A flatwork ironer manufacturer from eastern Westphalia has therefore adapted its heat generation system by using a gas burner. In addition, an improved control system manages the temperature of the thermal oil-heated heating band technology that substantially determines the ironer performance. In order to recycle heat, an air-water heat exchanger is used that utilises the warm exhaust air for heating the fresh water.  more...
     

    Generating electricity and heat from lean gas

    Large volumes of carbon (coke) are used for the melting process in the cupola furnace, whereby a combustible process gas is formed as a by-product. This so-called cupola furnace gas has a low heating value and has previously been completely combusted for generating the hot blast in the cupola furnace's recuperator. However, in this process only around 35 % of the contained energy is used thermally. Now it is possible to utilise the remaining 65 % of the chemically bound energy that was previously not used in most foundries: a modified biogas combined heat and power plant runs with cupola furnace gas (CFG) from the melting furnace.  more...
     

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