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For generation of required voltages and controlled energy transfer from fuel cell stacks, appropriate converter topologies are necessary. The stability of the stack against degradation and thus the possible lifetime does not meet the requirements for most applications yet. Dynamic fluctuations of...

Both the reliability of natural snow and the number of potential snow production days with traditional snowmaking equipment are decreasing due to a warmer climate. This is especially the case at lower altitudes. To maintain conditions suitable for winter sports close to cities and highly populated...

In recent years the need for DC distribution buses has increased considerably. As it can be noticed in the transport for example the distribution systems of the more electric aircrafts, ships, or electric cars. Given the complexities of the systems presented above, the need to use more and more...

This paper presents an assessment of the cost performance of CO₂ capture technologies when retrofitted to a cement plant: MEA-based absorption, oxyfuel, chilled ammonia-based absorption (Chilled Ammonia Process), membrane-assisted CO₂ liquefaction, and calcium looping. While the technical basis for...