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    Projektinfo 04/2018

    Double heats better

    Air-to-water heat pumps are providing increasingly more heat for new or refurbished single-family homes with low energy requirements. Compared with ground source heat pumps, they have significantly lower acquisition costs and can be easily integrated into low-temperature heating circuits. Scientists from research and industry want to increase the efficiency of the systems by, on the one hand, using a second heat source for the heat pump and, on the other hand, by reducing the heat demand by means of centrally controlled individual room and supply control systems.  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...
     
    Projektinfo 02/2018

    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...
     
    Projektinfo 01/2018

    Material loading in flexible power plants

    The conditions for operating conventional coal and natural gas power plants are changing considerably as a result of their combination with renewable energies. In future they will run more frequently under partial loads, have considerably more start-up and shut-down cycles, and the components will be subjected to greater and more diverse loads. Scientists have investigated the thermal and mechanical loads on thick-walled components in power plants under the new conditions. At any given safety level, the aim is to more precisely calculate the stability of components in regard to their damage and thus economically optimise their deployment times.  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...
     
    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...
     

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28.08.2018 - 30.08.2018
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