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    Projektinfo 07/2016

    Dry lignite increases flexibility

    Shoulder to shoulder with the energy transition: Coal plants are becoming more flexible to enable more energy from renewable sources to be used to supply the electricity grid. The output from renewable sources is currently not enough to meet the entire energy demand in Germany at all times. But their share is growing. This is transforming the role of conventional power plants: instead of providing constant base loads, they now have to cover fluctuating residual loads. To achieve this, pilot burners with integrated plasma ignition are being used for the first time in the world at a power plant in Jänschwalde in Brandenburg. These are using dry lignite as the fuel.  more...
     

    Clean heating with wood

    Despite considerable advances in firing technology, harmful particulate matter is produced when wood is combusted. Electrostatic separators, however, filter up to 90 per cent of particulate emissions from biomass boilers. These therefore enable wood burners to use a wider range of fuel and still meet the tightened requirements of Germany‘s 1st Ordinance on the Implementation of the Federal Immission Control Act. The major advantage: Both new and old heating plants can benefit from the new system.  more...
     

    Generating syngas from plastic wastes

    A newly developed gasification process utilises waste plastics, carbon-containing sorting residues and rubber parts as well as shredded materials in the automotive industry. It can also process chlorine-containing plastic streams with PVC fractions in an environmentally friendly and efficient manner. It produces a purified syngas without flue gas emissions. In the process, lime serves as a transport medium and simultaneously binds halogens and other harmful substances. The gas generated in the shaft kiln can replace valuable primary energy sources such as natural gas in high-temperature processes or be used to generate electricity in efficient gas engines.  more...
     

    Keeping a cool head in the summer heat

    Many present-day office and administrative buildings are not air conditioned. When the temperatures rise during the summer, this can have a negative effect on the thermal comfort of the users. Scientists analysed what effect improved protection against the sun and the use of ceiling fans can have on user behaviour and satisfaction. So-called comfort models are also important influencing factors.  more...
     
    Projektinfo 03/2016

    Developing robust pumps for geothermal energy

    Systems for using deep geothermal energy need special pump systems. These are up to 36 meters long and weigh eight tonnes. They must be able to withstand high temperatures and high flow rates, as well as mineralrich water. Pumps for geothermal energy have been tested during several field tests and on the largest high-temperature test loop in the world, and have been significantly improved. The prototypes already fulfil the development goals to a large degree. By 2017, key components will have been further developed ready for serial production.  more...
     

    Modelling power supply for 2050

    By 2050, the goal is for renewable energy sources to generate at least 80 per cent of power. In order to then still guarantee reliable supply at affordable prices, the entire energy system must be adapted and converted in a step-by-step process. The increasing share of fluctuating energy sources requires a flexible system that can react quickly. A research project demonstrates the degree of grid expansion, storage and new regulation opportunities that are technically required for this purpose, and which make economic sense.  more...
     
    Projektinfo 01/2016

    Energy-plus concept tested on housing estate

    A housing estate was built on an industrial waste ground with over 180 residential units built to energy-plus standards. But how much does it cost to operate this low-energy building type in an energy efficient way? And how much influence do the residents have over energy consumption? To find out, researchers from the Munich University of Applied Sciences and the Dresden Technical University monitored the area by taking measurements, and optimised the technology in operation. A software programme also visualised the energy consumption for the residents.  more...
     
    Projektinfo 18/2015

    Designing heat distribution with slurries

    In heating and cooling systems, water is mostly used for transporting heat. For special applications, dispersions of paraffin and water could carry out this task more efficiently. These so-called slurries achieve high heat capacities within a narrow temperature range. Scientists at RWTH Aachen are simulating the complex behaviour of the fluids in hydraulic networks. With new simulation models they are investigating possible uses – ranging from underfloor heating in family homes to district heating networks.  more...
     
    Projektinfo 17/2015

    Excellent climate for ancient manuscripts

    The new Central Library combines the book collections that were previously spread across several locations. Luitpoldhaus, which is located in a listed ensemble of buildings in Nuremberg’s old town, has been rebuilt and expanded. The project aim of undercutting the requirements of EnEV 2007 for new-build schemes by at least 30% has been exceeded. However, the high demands placed on the indoor environment for archiving and exhibiting medieval manuscripts made the task extremely tricky.  more...
     
    Projektinfo 16/2015

    Future heating supply designed

    Over the past thirty years, the population of Duisburg has fallen by more than a fifth, and the heating requirement has also reduced. A team of experts has investigated how the municipal utility company can adapt the heating supply in accordance with these developments by 2050. A main recommendation: The interconnection of two district heating networks would increase the primary energy efficiency and cut costs, mainly because industrial waste heat could be better utilised.
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Popular articles

Materially and energetically processing problematic plastic waste
Generating syngas from plastic wastes
Plasma method of foil production
Degreasing aluminium foil using corona treatment
User satisfaction and user behaviour in buildings
Keeping a cool head in the summer heat
Using solar thermal heat directly for space heating
The building serves as a heat storage tank