The transportation authorities are now planning to operate two lines exclusively with eBuses by the middle of 2013. During the Skiing World Championships in Schladming, Austria, one of these electric buses transported around 6,000 passengers and logged more than 1,000 completely emission-free kilometers.
Using this recharging technique it is possible to install a smaller battery system and at the same time save on investments in infrastructure. And thanks to their regenerative braking systems the electric buses can also recover energy. As soon as the driver takes his foot from the accelerator the energy recovery system is activated.
The drive system in these buses is significantly more efficient than a conventional diesel powertrain. Nine lithium iron phosphate batteries with a total capacity of 96 kilowatt hours supply the motor - through an IGBT power inverter that converts direct current to alternating current - with enough energy for up to 150 kilometers.
The batteries supply not only the drive system but also all of the onboard electronics, the heating, and the air conditioning.
Electric buses make a crucial contribution to protecting the environment and make our inner cities better places to live - and at the same time they have lower operating costs than diesel buses.
Dr. Norbert Aschenbrenner | Siemens InnovationNews
Silicon solar cell of ISFH yields 25% efficiency with passivating POLO contacts
08.12.2016 | Institut für Solarenergieforschung GmbH
Robot on demand: Mobile machining of aircraft components with high precision
06.12.2016 | Fraunhofer IFAM
Physicists of the University of Würzburg have made an astonishing discovery in a specific type of topological insulators. The effect is due to the structure of the materials used. The researchers have now published their work in the journal Science.
Topological insulators are currently the hot topic in physics according to the newspaper Neue Zürcher Zeitung. Only a few weeks ago, their importance was...
In recent years, lasers with ultrashort pulses (USP) down to the femtosecond range have become established on an industrial scale. They could advance some applications with the much-lauded “cold ablation” – if that meant they would then achieve more throughput. A new generation of process engineering that will address this issue in particular will be discussed at the “4th UKP Workshop – Ultrafast Laser Technology” in April 2017.
Even back in the 1990s, scientists were comparing materials processing with nanosecond, picosecond and femtosesecond pulses. The result was surprising:...
Have you ever wondered how you see the world? Vision is about photons of light, which are packets of energy, interacting with the atoms or molecules in what...
A multi-institutional research collaboration has created a novel approach for fabricating three-dimensional micro-optics through the shape-defined formation of porous silicon (PSi), with broad impacts in integrated optoelectronics, imaging, and photovoltaics.
Working with colleagues at Stanford and The Dow Chemical Company, researchers at the University of Illinois at Urbana-Champaign fabricated 3-D birefringent...
In experiments with magnetic atoms conducted at extremely low temperatures, scientists have demonstrated a unique phase of matter: The atoms form a new type of quantum liquid or quantum droplet state. These so called quantum droplets may preserve their form in absence of external confinement because of quantum effects. The joint team of experimental physicists from Innsbruck and theoretical physicists from Hannover report on their findings in the journal Physical Review X.
“Our Quantum droplets are in the gas phase but they still drop like a rock,” explains experimental physicist Francesca Ferlaino when talking about the...
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