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Current issue

ELEKTRO 12/2017 was released on December 6th 2017. Its digital version will be available on January 5th 2018.

Topic: Measurement, measuring devices and engineering; Testing and diagnostics

Main Article
Measurements on rotating machines using SFRA method
Application possibilities of ultra-capacitors or LiFePO4 batteries in trolley network of the Brno Public Transit Company

SVĚTLO (Light) 6/2017 was released on December 11th 2017. Its digital version will be available on january 11th 2018.

Lighting installations
The lighting of university building Centrale Supélec in Saclay in France
The light for our future

Daylight
Application and judgment light guides Solatube®

High-temperature device that produces electricity from industrial waste heat

14.06.2017 | MIT News | news.mit.edu

Glass and steel makers produce large amounts of wasted heat energy at high temperatures, but solid-state thermoelectric devices that convert heat to electricity either don’t operate at high enough temperatures or cost so much that thein use is limited to special applications such as spacecraft.

MIT researchers have developed a liquid thermoelectric device with a molten compound of tin and sulfur that can efficiently convert waste heat to electricity, opening the way to affordably transforming waste heat to power at high temperatures.

Producing electricity from waste heat

Measured on a dollar-per-watt basis, molten tin sulfide devices could be important to industries that operate at high temperature. The dollar per watt, when you have large surface area, is dictated by the cost of your material. Other advantages of the proposed system include the simplicity of handling tin and sulfur, the semiconducting mixture’s relatively high electrical conductivity and relatively low toxicity compared to compounds such as tellurium and thallium or lead and sulfur.

Read more at MIT News

Image Credit: Denis Paiste/Materials Processing Center

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