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Suche nach „[K.] [Schmidt]“ hat 3 Publikationen gefunden
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    NachhaltigAngewandte InformatikTC Freyung

    Zeitschriftenartikel

    Luis Ramirez Camargo, E. Wetterlund, K. Gruber, S. Wehrle, M. Klingler, O. Turkovska, P. Regner, C. Klöckl, J. Schmidt

    A new perspective on global renewable energy systems: why trade in energy carriers matters

    Energy & Environmental Science, vol. 12, no. 7, pp. 2022-2029

    2019

    DOI: 10.1039/C9EE00223E

    Abstract anzeigen

    Recent global modelling studies suggest a decline of long-distance trade in energy carriers in future global renewable energy systems, compared to today's fossil fuel based system. In contrast, we identify four drivers that facilitate trade of renewable energy carriers. These drivers may lead to trade volumes remaining at current levels or even to an increase during the transition to an energy system with very high shares of renewables. First, new land-efficient technologies for renewable fuel production become increasingly available and technically allow for long-distance trade in renewables. Second, regional differences in social acceptance and land availability for energy infrastructure support the development of renewable fuel import and export streams. Third, the economics of renewable energy systems, i.e. the different production conditions globally and the high costs of fully renewable regional electricity systems, will create opportunities for spatial arbitrage. Fourth, a reduction of stranded investments in the fossil fuel sector is possible by switching from fossil fuels to renewable fuel trade. The impact of these drivers on trade in renewable energy carriers is currently under-investigated by the global energy systems research community. The importance of the topic, in particular as trade can redistribute profits and losses of decarbonization and may hence support finding new partners in climate change mitigation negotiations, warrants further research efforts in this area therefore.

    NachhaltigAngewandte Naturwissenschaften und WirtschaftsingenieurwesenTC Teisnach Sensorik

    Zeitschriftenartikel

    K. Schmidt, G. Lindner, Maria Kufner, J. Landskron

    Stable vortex generation in liquid filled wells by mode conversion of surface acoustic waves

    Physics Procedia, vol. 70, no. Proceedings of the 2015 ICU International Congress on Ultrasonics, Metz, France, pp. 98-101

    2015

    DOI: 10.1016/j.phpro.2015.08.051

    Abstract anzeigen

    The formation of stable vortex flow pattern has been observed at liquid filled aluminum wells of 15 to 30 mm diameter when Lamb waves are excited on the bottom of the wells by piezoelectric transducers operated at a frequency of 1 MHz. The shape of the vortex pattern changed with the position of the transducer. Strong differences in mixing times were observed between water and ethanol when the filling level was changed and a remarkable reduction of mixing time was achieved by the addition of a small amount of detergent to water at small filling levels. Besides mixing of liquids thermal equilibration within a liquid volume was accelerated by acoustic streaming.

    NachhaltigEuropan Campus Rottal-Inn

    Vortrag

    A. Fanget, G. Denuault, M. Ahlf, M. Mátéfi-Tempfli, A. Lesch, H. Bülter, L. Forró, K. Al-Shamery, C. Dosche, Stefan Mátéfi-Tempfli, I. Schmidt, G. Wittstock

    Oxygen evolution at vertically aligned core-shell iron-iron oxide nanowire arrays

    24th ECS Meeting: Photoelectrochemistry and Photoassisted Electrocatalysis, San Francisco, CA, USA

    2013