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    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...
    Projektinfo 15/2017

    New building services concept tested in hotels

    The conversion of a residential building to a hotel in the centre of Munich focussed on comfort and energy efficiency. The building envelope almost achieves the passive house standard following the renovation. The system technology is adopting a different approach: decentralised heat pumps produce domestic hot water and space heating heat on a room-by-room basis. A twin-pipe chilled water network balances out the heat and cooling requirements between the individual rooms.  more...
    Projektinfo 14/2017

    Rain can damage rotor blades

    Rain and other weather and environmental factors can have a detrimental effect on the rotor blades of wind turbines in the long term. The leading edges of the blades are particularly susceptible to damage. Here the protective layer erodes first and material degradation subsequently continues deeper into the blade structure. A new test stand is now investigating the mechanisms involved in rain erosion in detail. The aim is to provide better protection for rotor blades in the future so that they can be used longer, thus improving the economic viability of wind turbines.  more...
    Projektinfo 13/2017

    New method comes closer to the ideal solar cell

    The goal of developers and customers is to achieve solar cells that come as close as possible to the maximally achievable efficiency. And it should also be possible to produce these cells even more cost-effectively. Researchers at the Fraunhofer Institute for Solar Energy Systems (ISE) have been investigating which methods and processes can be used to increase cell efficiency and reduce internal losses. In accordance with these requirements, they have developed a monocrystalline silicon solar cell that is contacted on both sides. This achieves an efficiency of 25.7%.  more...

    Modular battery storage system supplies balancing energy

    How can large-scale battery storage systems help stabilise electricity grids and at the same time be profitable? This question is being investigated by scientists at RWTH Aachen University in collaboration with industrial partners using the large-scale M5BAT battery storage system. Using a modular and flexibly scalable batteryinverter concept they are testing the interaction of different accumulator technologies and are developing business models for decentralised storage systems in real grid operation.  more...

    Night-time electricity from solar thermal power plants

    Together with the industrial partner Linde AG, researchers from the German Aerospace Center have further developed a latent heat storage system based on nitrate salts. In combination with a cascade of sensible heat storage units, the goal is to maintain the electricity production of solar thermal power plants at night and at times with low solar irradiation. To this end, the scientists have developed a storage system that can also be used for conventional steam power plants and industrial processes.  more...
    Projektinfo 10/2017

    German-French geothermal power plant completed

    In the Upper Rhine Graben, natural geological thermal deposits can be tapped at comparatively low depths with bore wells. In a Franco-German research project in Alsace, scientists have been researching the process of utilising heat from crystalline rock for years, whereby they have optimised the concept and technology. At the site of the research facility, two power companies opened a new commercial power plant in 2016. The electricity is fed into the French grid. In Germany, around 95% of geothermal resources are also found in deep rock and 5% in natural thermal water layers.  more...
    Projektinfo 09/2017

    Gas engine heat pump supplies renovated residential complex

    The energy efficient renovation of apartment buildings from the post-war years was aimed at achieving a CO2-neutral energy supply in conjunction with the use of renewable energies. The core element of the new heating system is a gas engine heat pump that uses groundwater as the heat source. This not only supplies the low-temperature space heating but simultaneously heats the domestic hot water efficiently.  more...

    School: Refurbished from Plattenbau to Passive House

    The school building belonging to Max Steenbeck Secondary School in Cottbus was old and the extent of the building damage made it impossible to carry out renovation work during the school's ongoing operation. This meant that the school had to move. To this end, an old system-built “Plattenbau” school with an auditorium and gymnasium had to be first of all comprehensively modernised. The City of Cottbus placed high demands in terms of the energy consumption, comfort and operating costs.  more...
    Projektinfo 07/2017

    Flexible turbomachines stabilise the power grid

    In future, conventional power plants will need to become more flexible in order to compensate for the fluctuating power generation by renewables. This requires modified gas and steam turbines. These will have to work more frequently under partial load, with more start-up and shut-down cycles and function with changing fuels. AG Turbo has compiled the research and development objectives for these new framework conditions in the ECOFLEX-turbo programme.  more...



05.04.2018 - 08.04.2018

auto motor und sport i-Mobility
07.04.2018 - 08.04.2018

Die Energiesparmesse

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