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Our society’s increasing energy demand requires a high degree of uninterrupted utilization of power generation plants.
New analytical method for quantification in lightweight materials such as plastics, polymers or refuse-derived fuels using X-ray fluorescence analysis.
Thermoelectric water heat pump
With the new thermoelectric water heat pump, drinking water can be heated to the desired temperatures in an energy-saving manner. For this purpose, the energy is extracted from heating water with a low flow temperature, which has been heated by means of solar thermal energy, for example, and fed to the drinking water to be heated.
Thermoelectric exhaust-air heat pump
With the new heat exhaust pump, the heat of a ventilation system can be efficiently recovered by means of thermoelectric elements. The heated fresh air can also be heated via the temperature of the exhaust air. The exhaust air heat pump is also suitable for cooling buildings.
Self-Assembling Oxide Catalyst for Electrochemical Water Splitting
Electrocatalytic material for oxygen evolution reaction (OER) in alkaline solutions. The main purpose is to make the Hydrogen production more effective. The catalyst is based on perovskites with high activity (industry comparable once based on metals). In the same time (and in contrast to all other perovskite-based catalysts) it is stable at industrial conditions.
Smart grid expansion
Intelligent power grids can monitor and regulate themselves independently. A new process from the University of Wuppertal makes it possible to stabilize the voltage in grids by installing control units, as well as avoiding overloads.
Detecting ionizing radiation
Ionizing radiation is harmful to humans and the environment even in the smallest quantities. Therefore, radioactive materials must be continuously monitored in hospitals, mines or reprocessing plants. A novel semiconductor sensor can analyze ionizing radiation in an integrated microfluidic system (in-situ).
Effective hydrogen production
At the Ruhr University Bochum an effective method was developed with which the coating of an electrode can be achieved with high long-term stability, especially during electrolysis such as alkaline water splitting. Due to the coating of the electrode surface with catalytically active material, a significant reduction in the required cell voltage is achieved.
Isokinetic aerosol sampling is currently only designed and used in very narrow speed ranges. However, known diffusers are only permanently adjustable and designed for a specific flow velocity.
Previous solutions or approaches to the elimination of oil spills on water surfaces consist either of actively working pumps, chemicals or materials that absorb the oil and then have to be cleaned or disposed of.
Method for current measurement in half-bridge topologies
A number of different instrument transformers are used to determine voltage and current in regulated power electronics. Current measurement becomes more and more difficult with increasing current intensity, especially since the switching frequencies increase due to the use of modern (e.g. GaN) transistors and parasitic properties of the sensors must be minimized.
The electrical power grid is undergoing a major transformation. Increasing numbers of decentralized feeders have been added in recent years and, in the future, there will be a large number of charging stations for electric vehicles that temporarily draw a large amount of electrical power from the power grid.