Tomorrow’s High-Temperature Superconducting 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.
All latest news from the category: Process Engineering
This special field revolves around processes for modifying material properties (milling, cooling), composition (filtration, distillation) and type (oxidation, hydration).
Valuable information is available on a broad range of technologies including material separation, laser processes, measuring techniques and robot engineering in addition to testing methods and coating and materials analysis processes.
Movies of ultrafast electronic circuitry in space and time
Researchers at the University of Konstanz have successfully filmed the operations of extremely fast electronic circuitry in an electron microscope at a bandwidth of tens of terahertz. The increasing demand…
Reproducing the Moon’s surface environment on Earth
Implementation of an electrostatically charged environment to accelerate lunar base construction efforts. Continuous research is being conducted globally on using the Moon as an advanced base for deep space exploration,…