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    Adapting chlorine production to the electricity supply

    The chemical industry is the second largest consumer of electricity within German industry. Using the example of energy-intensive chlorine-alkali electrolysis, scientists are now investigating to what extent this process can contribute to managing loads in the power grid. To achieve this the production needs to be adapted to the intermittent electricity supply.  more...
     

    Heat storage system with segmental design demonstrates its qualities

    In the “OBSERW” research project researchers have developed an innovative above-ground storage tank built using a cost-saving segmental construction method. This required a complete overhaul of conventional storage constructions and building technology. Numerous technical issues were put to rest, such as the temperature-resistant sealing of segments.  more...
     
    News 26.04.2018

    New administrative facility with energy-plus concept

    In 2013, the City of Freiburg held a competition for the construction of a new central administrative facility, including town hall, to consolidate its various agencies spread across the municipal area. The objective being two-fold: to produce an outstanding architectural design and to maximise energy efficiency. Monitoring measures put into effect upon commissioning are intended to reveal whether operation of the new energy-plus building fulfils the promise evident at the planning stage.  more...
     

    Multidisciplinary energy efficient production

    The closing event of the “ETA Factory” research project took place at TU Darmstadt on 11 April 2018. In the course of the project, a multidisciplinary research group was able to demonstrate the feasibility of energy savings of up to 40 percent in industrial production. The jointly planned research factory saw researchers optimise and network energy flows in production and within the building.  more...
     
    Projektinfo 03/2018

    Energy efficient model factory

    A multi-functional, multi-networked factory in every respect: The ETA Factory on the campus of the Technische Universität Darmstadt is a research project, large-scale demonstrator and place of learning. It networks the building envelope and industrial process chain across technologies and disciplines in individual and integrated solutions, thus increasing the energy efficiencyof the overall system.  more...
     

    Using bionic surfaces on blast furnace

    In blast furnaces, air approx. 1,200 °C in temperature is blown into the reaction chamber for the reduction and melting process of iron. Special water-cooled nozzles made of copper are used for this, known as blow moulds. These are susceptible to damage or destruction by red-hot droplets of iron. This then costs time and money to put right. Researchers have now been able to design the surfaces of these blow moulds to allow liquid iron to simply drip off. This new beading effect is similar to the lotus effect seen on leaves.  more...
     

    District heating network becomes heat hub

    The Brandenburg town of Hennigsdorf wants to increase the climate-neutral share of heat in its district heating network to 80 per cent within five years. To achieve this, the municipal utility company is planning to integrate the waste heat from the local steelworks and large solar thermal collectors into the network. A multifunctional, large-capacity heat storage system is intended to provide the necessary flexibility. The concept is ready and the implementation has already started in 2017. Hennigsdorf is therefore acting as a real-life laboratory for ensuring the renewable future of the heating provision.  more...
     

    Storing heat in mines

    What happens to mines that are no longer in use? Could they be used to store heat? Researchers are hoping to find this out and are conducting tests in the former Prosper-Haniel hard-coal mine in Bottrop to investigate whether it is suitable for underground heat storage. The GeoMTES research project is developing storage concepts for this purpose and a feasibility study will be carried out by September 2018. The modelling of the pit structure has now been completed.  more...
     

    Solar cell uses front and back

    So-called bifacial solar cells can convert incident light into electrical current both on their fronts and backs. They are up to 30 per cent more powerful than conventional monofacial cells that use only their fronts. The hitherto very complicated production of such double-sided solar cells has now been made simpler and less expensive by means of a newly developed doping process.  more...
     
    Projektinfo 16/2017

    Keeping the oil in the engine

    Each time the fuel-air mixture is ignited in petroland diesel engines a small portion of the gases flows from the combustion chamber into the crankcase as leakage current. For the engines to function optimally, it is necessary to dissipate these so-called blow-by gases and separate the engine oil droplets contained within them. This reduces the pollutant emissions and oil consumption of the engines. For modern, higher-compression engines, researchers have developed new and effective separation systems that undercut the more stringent emission limits for oil mist.  more...
     

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