Your cars engine loses 70 percent of its energy as waste heat -- but Australian and Oregon scientists may have figured out an efficient way not only to recover that lost energy, but to at long last capture the power-producing potential of geothermal heat.
The trick is to convert it to electricity -- and a promising way to accomplish this, the researchers have discovered, involves using extremely thin nanowires to potentially more than double the efficiency of thermoelectric materials. "If all goes well, nanostructured thermoelectric devices may be practical for applications such as recycling of waste heat in car engines, on-chip cooling of computer microprocessors and silent, more compact domestic refrigerators," says Heiner Linke, a University of Oregon assistant professor of physics associated with ONAMI, the Oregon Nanoscience and Microtechnologies Institute.
Linke and Tammy Humphrey, an Australian Research Council fellow currently visiting the University of California at Santa Cruz, presented their findings today (Tuesday, April 5) at the Nanoscale Devices and System Integration Conference in Houston. A review of their study in the online version of the journal Nature Materials described their results as "dramatic" and "a phenomenal enhancement relative to current bulk thermoelectrics."
Melody Ward Leslie | EurekAlert!
IHP technology ready for space flights
20.08.2018 | IHP - Leibniz-Institut für innovative Mikroelektronik
It’s All in the Mix: Jülich Researchers are Developing Fast-Charging Solid-State Batteries
20.08.2018 | Forschungszentrum Jülich
There are currently great hopes for solid-state batteries. They contain no liquid parts that could leak or catch fire. For this reason, they do not require cooling and are considered to be much safer, more reliable, and longer lasting than traditional lithium-ion batteries. Jülich scientists have now introduced a new concept that allows currents up to ten times greater during charging and discharging than previously described in the literature. The improvement was achieved by a “clever” choice of materials with a focus on consistently good compatibility. All components were made from phosphate compounds, which are well matched both chemically and mechanically.
The low current is considered one of the biggest hurdles in the development of solid-state batteries. It is the reason why the batteries take a relatively long...
New design tool automatically creates nanostructure 3D-print templates for user-given colors
Scientists present work at prestigious SIGGRAPH conference
Most of the objects we see are colored by pigments, but using pigments has disadvantages: such colors can fade, industrial pigments are often toxic, and...
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....
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20.08.2018 | Information Technology