Hybrid drives also promise benefits in utility vehicles and construction machinery. Such devices are still, however, very much the exception in the market.
The new BINE Projektinfo brochure “Hybrid building machinery” (11/2015) presents a material handler with a diesel-electric drive. In order to supply the electric motor with electricity, part of the kinetic energy is converted via a generator into electricity and then stored in supercapacitors.
These and further optimisation measures enable the excavator to consume up to 40% less diesel while providing additional power reserves for special loads.
With the power of two motors
The rotary movements of the material handler’s upper superstructure, the house, are achieved via the electric motor’s drive and the energy released during braking is converted back into electricity. A generator flange-mounted to the 160-kW diesel engine charges the supercapacitors – the supercap pack.
The generator reverses its function as required, operating as a motor and supporting the diesel drive during peak loads. The supercap pack enables the two-way feeding and generation of electricity.
In contrast to lithium-ion batteries, which are used in cars, supercaps have the advantage that they have an extremely large number of cycles and a high charge and discharge efficiency.
With the test material handler, the interaction of the diesel engine, motor generator, energy storage system and the hybrid drive in the house was successful.
Another aspect of the research project was to optimise the auxiliary units. Demand-based configuration of the fans, pumps and alternator, as well as an adapted control system, enables up to 9% of the energy to be saved compared with standard units. The hybrid excavator is being developed as a joint project by Deutz AG, Robert-Bosch GmbH and Terex Deutschland GmbH.
The BINE-Projektinfo brochure “Hybrid building machinery” (11/2015) follow this link:
Uwe Milles/Birgit Schneider
About BINE Information Service
Energy research for practical applications
The BINE Information Service reports on energy research topics, such as new materials, systems and components, as well as innovative concepts and methods. The knowledge gained is incorporated into the implementation of new technologies in practice, because first-rate information provides a basis for pioneering decisions, whether in the planning of energy-optimised buildings, increasing the efficiency of industrial processes, or integrating renewable energy sources into existing systems.
About FIZ Karlsruhe
FIZ Karlsruhe – Leibniz Institute for Information Infrastructure is a not-for-profit organization with the public mission to make sci-tech information from all over the world publicly available and to provide related services in order to support the national and international transfer of knowledge and the promotion of innovation.
Our business areas:
• STN International – the world’s leading online service for research and patent information in science and technology
• KnowEsis – innovative eScience solutions to support the process of research in all its stages, and throughout all scientific disciplines
• Databases and Information Services – Databases and science portals in mathematics, computer science, crystallography, chemistry, and energy technology
FIZ Karlsruhe is a member of the Leibniz Association (WGL) which consists of 87 German research and infrastructure institutions.
http://www.bine.info/en - BINE Informationsdienst
Rüdiger Mack | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
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...
16.11.2016 | Event News
01.11.2016 | Event News
14.10.2016 | Event News
09.12.2016 | Life Sciences
09.12.2016 | Ecology, The Environment and Conservation
09.12.2016 | Health and Medicine