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
New players, standardization and digitalization for more rail freight transport
16.07.2018 | Fraunhofer-Institut für System- und Innovationsforschung (ISI)
A helping (Sens)Hand
11.04.2018 | Fraunhofer-Institut für Arbeitswirtschaft und Organisation IAO
Scientists at the University of California, Los Angeles present new research on a curious cosmic phenomenon known as "whistlers" -- very low frequency packets...
Scientists develop first tool to use machine learning methods to compute flow around interactively designable 3D objects. Tool will be presented at this year’s prestigious SIGGRAPH conference.
When engineers or designers want to test the aerodynamic properties of the newly designed shape of a car, airplane, or other object, they would normally model...
Researchers from TU Graz and their industry partners have unveiled a world first: the prototype of a robot-controlled, high-speed combined charging system (CCS) for electric vehicles that enables series charging of cars in various parking positions.
Global demand for electric vehicles is forecast to rise sharply: by 2025, the number of new vehicle registrations is expected to reach 25 million per year....
Proteins must be folded correctly to fulfill their molecular functions in cells. Molecular assistants called chaperones help proteins exploit their inbuilt folding potential and reach the correct three-dimensional structure. Researchers at the Max Planck Institute of Biochemistry (MPIB) have demonstrated that actin, the most abundant protein in higher developed cells, does not have the inbuilt potential to fold and instead requires special assistance to fold into its active state. The chaperone TRiC uses a previously undescribed mechanism to perform actin folding. The study was recently published in the journal Cell.
Actin is the most abundant protein in highly developed cells and has diverse functions in processes like cell stabilization, cell division and muscle...
Scientists have discovered that the electrical resistance of a copper-oxide compound depends on the magnetic field in a very unusual way -- a finding that could help direct the search for materials that can perfectly conduct electricity at room temperatur
What happens when really powerful magnets--capable of producing magnetic fields nearly two million times stronger than Earth's--are applied to materials that...
08.08.2018 | Event News
27.07.2018 | Event News
25.07.2018 | Event News
16.08.2018 | Life Sciences
16.08.2018 | Earth Sciences
16.08.2018 | Life Sciences