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    Projektinfo 04/2015

    Local heating links newbuild with existing district

    By means of a district energy concept, researchers in Ludwigsburg are combining the advantages of ambitious building concepts and refurbishment measures with energy efficient heat supply. The heat required for the Sonnenberg development area is generated in winter using a brine/water heat pump in combination with a combined heat and power plant. The local heating network and its extension into the adjacent existing district of Grünbühl provide the post-war housing estate, which is in need of refurbishment, with not just greater living comfort but also energy efficiency benefits and cost savings.  more...
     
    Projektinfo 03/2015

    Heating with gas adsorption heat pumps

    Condensing boiler technology has long been considered the most energy-saving technology for heating single- and multi-family homes with gas. Its systematic further development is now provided by adsorption heating devices. They combine condensing boiler technology with a zeolite/water-based thermal heat pump module. This uses geothermal energy or solar energy and reduces the fuel consumption by more than 20 per cent relative to condensing boiler technology.   more...
     
    Projektinfo 02/2015

    Taking user behaviour into account with refurbishments

    With the refurbishment of a residential neighbourhood in Karlsruhe everything was done correctly in theory. Nevertheless, the consumption values measured in three investigated buildings are up to 25 per cent higher than the requirement values calculated prior to the refurbishment. Scientists at the E.ON Energy Research Centre at RWTH Aachen University are investigating the causes of this so-called “rebound effect”.  more...
     
    Projektinfo 01/2015

    Efficient production of monocrystalline semiconductors

    A Freiberg-based semiconductor manufacturer has now developed a new process that enables up to nine crystals to be grown simultaneously in parallel. This reduces the specific energy consumption for the production by two thirds. The new technological principle can be applied to growing other semiconductor substrates.  more...
     

    Combining compost and biogas

    A new method improves the energy balance and processing capacity of composting plants. With the usual composting process, considerable energy is consumed to provide the required mechanical ventilation. In the new method, the liquid organic components of the organic waste are separated in advance and are used for producing biogas. This enables energy to be generated in the plants. For the project, a new biofilm digester has been designed which provides cost advantages relative to other digestion processes.  more...
     
    Projektinfo 16/2014

    Fresh air for new school buildings

    A school where you feel at home that at the same time consumes little energy during operation – that is the Niederheide primary school in Hohen Neuendorf. A ventilation system which combines mechanical and natural ventilation via the windows ensures a good air quality and a pleasant indoor environment in the classrooms. It is the first school in Germany to receive the Gold Medal for Sustainable Construction. It was certified in accordance with the Sustainable Construction Assessment System (BNB) developed by the Federal Ministry for the Environment, Nature Conservation, Building and Nuclear Safety (BMUB).  more...
     

    Fast-track testing of nacelles

    In Bremerhaven, a test rig is being developed that can test complete wind turbine nacelles in the multi-megawatt class. Unprecedented: a load transmission system mechanically simulates the wind loads occurring in the field. The researchers are investigating the electrical components using a simulated electricity grid. Laboratory tests are also providing information on how wind turbine concepts can be improved. With these properties, the test rig has the world’s most powerful grid simulation system.  more...
     
    Projektinfo 14/2014

    Vacuum tank stores heat

    An efficient long-term heat storage tank boosts the shares of fraction of solar thermal energy systems in buildings. Staff at Bavarian Center for Applied Energy Research and at steel and metal engineering company Hummelsberger have developed a storage system that minimises thermal losses and optimises temperature stratification. A vacuum between the inner and outer tank combined with a perlite powder filling reduces the thermal conductivity of the storage tank shell.  more...
     

    Making district heating renewable

    Three research teams have investigated how the proportion of renewable energies can be increased in district heating networks. Custom strategies were developed in this respect for the model regions Jena and Ulm. The key lay in identifying the appropriate renewable energy sources and in understanding the potential these exhibit and the effect their inclusion would have on the efficiency of the networks. The project also comprises a survey of existing heat networks with best practice analyses.  more...
     

    Saving energy in commercial and industrial parks

    Industrial parks are typically home to a diverse mix of cross-industry businesses. The requirements of these businesses vary when it comes to energy supply depending on the nature of their production. For businesses in the metal processing industry for instance, thermal energy requirements in the range of many hundreds of degrees Celsius are typical, while in the food industry, heat requirements are rarely above a hundred degrees Celsius. Businesses operating in the direct vicinity can make good use of waste heat from such processes.  more...
     

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Events

27.04.2015 - 29.04.2015
Berlin

Berliner Energietage 2015
05.05.2015 - 05.05.2015
Hamburg

Windmesse Technik Symposium 2015

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