Ultrafast heat conduction can manipulate nanoscale magnets – Nanotechnology News (press release)

Researchers at the University of Illinois at Urbana-Champaign have uncovered physical mechanisms allowing the manipulation of magnetic information with heat. These new phenomena rely on the transport of thermal energy, in contrast to the conventional application of magnetic fields, providing a new, and highly desirable way to manipulate magnetization at the nanoscale.

“In our study, we make use of the fact that a heat current passing through a magnetic material creates a separation of electron spins. This process creates a current of magnetic dipoles that we use to manipulate the orientation of a second magnetic layer,” said David Cahill, a Donald B. Willett Professor of Engineering and head of the Department of Materials Science and Engineering at Illinois. “The physics of separating spins with heat currents is related to the operation of thermocouples and the thermoelectric generators that power deep space probes. In those thermoelectric devices, a heat current causes a separation of electrical charges. That separation of electrical charge can then be used to measure a temperature or provide electrical power.”

Sourced through Scoop.it from: www.nanotech-now.com

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Daimler to offer Mercedes-Benz energy-storage system – Gizmag

Tesla recently did it to much acclaim, and now Daimler is doing it too – the German automotive corporation is launching its own home/business battery energy storage system. Developed by Daimler subsidiary Deutsche ACCUmotive, the Mercedes-Benz energy storage unit utilizes lithium-ion batteries to store energy generated by solar cells, wind turbines or other sources.

Utilizing technology that was originally developed for use in Mercedes and smart hybrid/electric cars, the battery modules will be available in two versions – a 2.5-kWh model for homes, and a 5.9-kWh model for industrial use. Up to eight 2.5 kWh modules can be linked together to form a 20 kWh energy storage unit for use by businesses.

Sourced through Scoop.it from: www.gizmag.com

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Hybrid Rooftop Solar + CHP + Storage Model Has Potential, Says GE – CleanTechnica

Originally published on RenewEconomy

A project testing a combination of solar PV, combined heat and power systems and battery storage at a commercial facility in Germany could be adapted and scaled up elsewhere, according to General Electric, one of the project’s partners.

The project – launched last week – is a collaboration between GE Power Conversion (owner of the factory), solar provider Belectric (supplier of the 600 kW rooftop PV array), and Jenbacher – supplier of the plant’s 400 kW combined heat and power (CHP) system.

Sourced through Scoop.it from: cleantechnica.com

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A greener ORC

Radial Outflow Turbines were utilized in the past as steam turbines, but were eventually displaced by axial turbines with bearings at both ends. However, when working with an organic fluid, the advantageous characteristics of the ROT lead to a more efficient machine, rotating at a low speed with minimal noise and vibration.

Sourced through Scoop.it from: www.powerengineeringint.com

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