The trains consume the equivalent of around 0.33 liters of gasoline per passenger for every 100 kilometers, while beating airliners in terms of travel time for trips of up to 1,200 kilometers, when transfers and waiting times are taken into account. As reported in the research magazine Pictures of the Future, intelligent controls, recovery of braking energy, and improved aerodynamics account for most of the savings. The Velaro debuted on the Madrid-Barcelona line in early 2007, and it is now also speeding through Russia and China. Service in Germany and France is scheduled to begin in 2011. And it will speed through the Channel Tunnel.
Like the ICE 3, the Velaro does not have a locomotive at the front and back of the train, but rather has drives at every second coach. This provides space for more passengers, and the train can accelerate better and negotiate steeper grades. The motors produce about 8,000 kilowatts, or 11,000 horsepower. Roughly one third of the energy can be reused because the energy released during braking is almost completely recovered at each wheel drive.
A smooth roofline prevents formation of the turbulence normally created by roof-mounted components such as air conditioners. A new contour also reduces air resistance in front of the train. All together, the improved aerodynamics result in energy savings of between six and eight percent. Inside the train, the halogen lamps used previously have been replaced with efficient LEDs, which reduce electricity consumption. The load for the air conditioner also decreases because LEDs produce significantly less waste heat. A new energy management system only activates as many power supply blocks as are needed at the time. Fans are speed controlled and only operated when needed. Most of the electricity-consuming features go into standby mode or are turned down as far as possible when idling.
Driver assistance systems avoid unnecessary braking and acceleration, which yields an additional six-percent energy saving. The train can save ten percent more if the engineer is trained in environmentally aware driving, as is the case in Germany, France, Austria, and Switzerland. The high-speed trains are part of Siemens’ environmental portfolio, with which the company generated about €28 billion in sales in fiscal year 2010.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
Bremen University students reach the final at robotics competition with parcel delivery robot
19.10.2016 | BIBA - Bremer Institut für Produktion und Logistik
Discovering electric mobility in a playful way
18.08.2016 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Terahertz excitation of selected crystal vibrations leads to an effective magnetic field that drives coherent spin motion
Controlling functional properties by light is one of the grand goals in modern condensed matter physics and materials science. A new study now demonstrates how...
Researchers from the Institute for Quantum Computing (IQC) at the University of Waterloo led the development of a new extensible wiring technique capable of controlling superconducting quantum bits, representing a significant step towards to the realization of a scalable quantum computer.
"The quantum socket is a wiring method that uses three-dimensional wires based on spring-loaded pins to address individual qubits," said Jeremy Béjanin, a PhD...
In a paper in Scientific Reports, a research team at Worcester Polytechnic Institute describes a novel light-activated phenomenon that could become the basis for applications as diverse as microscopic robotic grippers and more efficient solar cells.
A research team at Worcester Polytechnic Institute (WPI) has developed a revolutionary, light-activated semiconductor nanocomposite material that can be used...
By forcefully embedding two silicon atoms in a diamond matrix, Sandia researchers have demonstrated for the first time on a single chip all the components needed to create a quantum bridge to link quantum computers together.
"People have already built small quantum computers," says Sandia researcher Ryan Camacho. "Maybe the first useful one won't be a single giant quantum computer...
COMPAMED has become the leading international marketplace for suppliers of medical manufacturing. The trade fair, which takes place every November and is co-located to MEDICA in Dusseldorf, has been steadily growing over the past years and shows that medical technology remains a rapidly growing market.
In 2016, the joint pavilion by the IVAM Microtechnology Network, the Product Market “High-tech for Medical Devices”, will be located in Hall 8a again and will...
14.10.2016 | Event News
14.10.2016 | Event News
12.10.2016 | Event News
24.10.2016 | Earth Sciences
24.10.2016 | Life Sciences
24.10.2016 | Physics and Astronomy