Energy

Thermal Metamaterial for Waste-Heat Harvesting in Power Plants and Factories

The thermal metamaterial was developed in research aimed at efficiently harvesting waste heat from power plants and factories. (Purdue University/Sean Molesky) An international research team has used a thermal metamaterial to control the emission of radiation at high temperatures, an advance that could bring devices able to efficiently harvest waste heat from power plants and factories. Thermophotovoltaic devices that generate electricity from thermal radiation might be adapted to industrial pipes in factories and power plants, as well as on car engines and automotive exhaust systems, to recapture much of the wasted energy.

Posted in: News, Energy, Energy Efficiency, Energy Harvesting

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Technology Powers Implants Wirelessly Via Ultrasound

The basic structure of the ultrasound power supply and communication. (© Photo Fraunhofer IBMT) Scientists have developed a demonstrator that powers active implants wirelessly via ultrasound. Ultrasound waves have a broader range in the body, and they penetrate the implant’s metal casing more easily than electromagnetic waves. The ultrasound waves are also capable of bidirectional transfer of information, such as the temperature of the implant, or details regarding the type and intensity of electrical stimulation.

Posted in: News, Energy

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Renewable Energy Could Be Under Our Feet

Associate Professor Xudong Wang holds a prototype of the researchers’ energy harvesting technology, which uses wood pulp and harnesses nanofibers. (Photo: Stephanie Precourt) Flooring can be made from any number of sustainable materials, making it, generally, an eco-friendly feature in homes and businesses. Now, flooring could be even more “green,” thanks to an inexpensive, simple method developed by University of Wisconsin–Madison materials engineers that allows them to convert footsteps into usable electricity.

Posted in: News, Energy, Energy Harvesting, Renewable Energy

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Flexible Solar Panels Absorb Diffused Light

Virginia Tech researchers have produced flexible solar panels that can become part of window shades or wallpaper. The material will capture light from the sun as well as light from sources inside buildings.

Posted in: News, Energy Efficiency, Renewable Energy, Solar Power, Materials

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Products of Tomorrow: November 2016

The technologies NASA develops don’t just blast off into space. They also improve our lives here on Earth. Life-saving search-and-rescue tools, implantable medical devices, advances in commercial aircraft safety, increased accuracy in weather forecasting, and the miniature cameras in our cellphones are just some of the examples of NASA-developed technology used in products today.

Posted in: Products, Solar Power, Manufacturing & Prototyping, Sensors, Test & Measurement

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Scientists Simulate Bacteria-Powered 'Windfarm'

A team of scientists from Oxford University has shown how the natural movement of bacteria could be harnessed to assemble and power microscopic "windfarms."

Posted in: News, Energy Harvesting, Renewable Energy

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New Material Increases Lifetime of Solar-Powered Electrons

Nobody wants a laptop computer that stops working when a cloud passes by. Storing sunlight as fuel that can be later used to drive fuel cells requires new materials. Scientists demonstrated just such a material by combining two oxides on the atomic scale.

Posted in: Articles, News, Energy, Energy Storage, Materials

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