Developers have succeeded in "stranding" HTS wires into cables.
Future generations of electric trains may use considerably less power than they do today thanks to the development of the first high temperature superconducting (HTS) cable. To produce the cable, Scientists at Siemens Corporate Technology in Erlangen, Germany started out with micron-sized particles of a brittle ceramic material. The particles were then embedded in a silver alloy. Through repeated rolling stages and annealing, the material was turned into ribbon-shaped wires. To make a cable from such wires, the developers employed a technology used in manufacturing transformers, whereby several HTS strip conductors are "stranded" into a flat cable. This method opens the door to large-scale production of flexible, high capacity / low loss cables. Altogether, engineers managed to strand 13 wires into a 400 meter-long cable. They then installed the cable in a model HTS transformer with an output of one megavolt-ampere (MVA) - enough to drive a normal passenger train. The new technology could reduce the weight of such a transformer by a third without any reduction in output. In addition, it would have an efficiency of over 98 percent compared to the "mere" 90 percent of a conventional transformer.
| Innovation News
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Researchers at the University of New Hampshire have captured a difficult-to-view singular event involving "magnetic reconnection"--the process by which sparse particles and energy around Earth collide producing a quick but mighty explosion--in the Earth's magnetotail, the magnetic environment that trails behind the planet.
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Biochips have been developed at TU Wien (Vienna), on which tissue can be produced and examined. This allows supplying the tissue with different substances in a very controlled way.
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Faster and secure data communication: This is the goal of a new joint project involving physicists from the University of Würzburg. The German Federal Ministry of Education and Research funds the project with 14.8 million euro.
In our digital world data security and secure communication are becoming more and more important. Quantum communication is a promising approach to achieve...
On Saturday, 10 November 2018, the research icebreaker Polarstern will leave its homeport of Bremerhaven, bound for Cape Town, South Africa.
When choosing materials to make something, trade-offs need to be made between a host of properties, such as thickness, stiffness and weight. Depending on the application in question, finding just the right balance is the difference between success and failure
Now, a team of Penn Engineers has demonstrated a new material they call "nanocardboard," an ultrathin equivalent of corrugated paper cardboard. A square...
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16.11.2018 | Life Sciences