One of the world's most advanced pilot boats contains a hybrid drive from Siemens. Called the Explorer, the vessel is a SWASH (Small Waterplane Area Single Hull) vessel with a torpedo-shaped float located centrally underneath the hull. The boat's propulsion system is also located in this tube.
The vessel remains stable in the water even in rough seas and is relatively light, thus reducing fuel consumption. The hull contains a flexible and compact EcoProp Hybrid system, which ensures efficient and environmentally compatible operation in both the diesel and the electric mode.
The hybrid drive system is economical in all operational profiles. The diesel engine is used to propel the boat. Surplus energy can be used by a generator to supply the vessel with electricity. The boat is currently being tested on the Elbe River.
The Explorer is a further development of SWATH (Small Waterplane Area Twin Hull) craft, which have two torpedo-shaped floats underneath the water. These kinds of vessels are less susceptible to wind and waves than other designs so that pilots can safely go from the boat to the ship they have to direct even in rough seas. In the Explorer, the two lateral floats are replaced by a single tube in the middle.
The boat has two outriggers at the sides to keep it stable. The new design makes the vessel lighter and more agile. Good maneuverability is important because the pilot boat and the ship to be directed have to maintain their relative positions when the pilot is transferring between the two. The speeds can be fairly high, and the large container ships on the Elbe River travel at eight or more knots, for example.
The Explorer's EcoProp Hybrid propulsion system is based on the ELFA drive system that was originally developed for buses. At the heart of the system is an electrical machine that can serve either as a motor or a generator.
When the boat is being propelled by the diesel engine, the latter also supplies energy to the generator. If electric operation is selected, the propeller is instead driven by the electric motor. In this mode, the boat can attain one third of its top speed of 17 knots (approximately 31 kilometers per hour).
The boat's ability to travel a longer distance solely on electricity is important for a number of reasons, including the fact that the centrally located float only contains a single diesel engine. However, some applications require a second propulsion system to be on board for safety reasons. In the Explorer, this role is performed by the electric motor.
ELFA hybrid drives power urban buses in cities all over the world, including London, Munich, and Hanoi. Siemens adapted the components to the special conditions found on the high seas so that the system would be suitable for maritime use and to obtain certification from Germanischer Lloyd SE.
Press Pictures: http://www.siemens.com/ct-pictures/IN20140406
Dr. Norbert Aschenbrenner | Siemens InnovationNews
New welding process joins dissimilar sheets better
28.09.2016 | Technologie Lizenz-Büro (TLB) der Baden-Württembergischen Hochschulen GmbH
Cooling buildings with solar heat
26.09.2016 | FIZ Karlsruhe – Leibniz-Institut für Informationsinfrastruktur GmbH
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of light metals.
Scientists at the University of Stuttgart have now developed two new process variants that will considerably expand the areas of application for friction stir welding.
Technologie-Lizenz-Büro (TLB) GmbH supports the University of Stuttgart in patenting and marketing its innovations.
Friction stir welding is a still-young and thus often unfamiliar pressure welding process for joining flat components and semi-finished components made of...
Optical quantum computers can revolutionize computer technology. A team of researchers led by scientists from Münster University and KIT now succeeded in putting a quantum optical experimental set-up onto a chip. In doing so, they have met one of the requirements for making it possible to use photonic circuits for optical quantum computers.
Optical quantum computers are what people are pinning their hopes on for tomorrow’s computer technology – whether for tap-proof data encryption, ultrafast...
The Fraunhofer Institute for Organic Electronics, Electron Beam and Plasma Technology FEP has been developing various applications for OLED microdisplays based on organic semiconductors. By integrating the capabilities of an image sensor directly into the microdisplay, eye movements can be recorded by the smart glasses and utilized for guidance and control functions, as one example. The new design will be debuted at Augmented World Expo Europe (AWE) in Berlin at Booth B25, October 18th – 19th.
“Augmented-reality” and “wearables” have become terms we encounter almost daily. Both can make daily life a little simpler and provide valuable assistance for...
With the help of artificial intelligence, chemists from the University of Basel in Switzerland have computed the characteristics of about two million crystals made up of four chemical elements. The researchers were able to identify 90 previously unknown thermodynamically stable crystals that can be regarded as new materials. They report on their findings in the scientific journal Physical Review Letters.
Elpasolite is a glassy, transparent, shiny and soft mineral with a cubic crystal structure. First discovered in El Paso County (Colorado, USA), it can also be...
For the first time, Fraunhofer IKTS shows additively manufactured hardmetal tools at WorldPM 2016 in Hamburg. Mechanical, chemical as well as a high heat resistance and extreme hardness are required from tools that are used in mechanical and automotive engineering or in plastics and building materials industry. Researchers at the Fraunhofer Institute for Ceramic Technologies and Systems IKTS in Dresden managed the production of complex hardmetal tools via 3D printing in a quality that are in no way inferior to conventionally produced high-performance tools.
Fraunhofer IKTS counts decades of proven expertise in the development of hardmetals. To date, reliable cutting, drilling, pressing and stamping tools made of...
29.09.2016 | Event News
28.09.2016 | Event News
27.09.2016 | Event News
29.09.2016 | Materials Sciences
29.09.2016 | Materials Sciences
29.09.2016 | Interdisciplinary Research