Transportation

Hitting the Theoretical Roof of Converting Waste Heat to Electricity

The need to get rid of excess heat creates a major source of inefficiency in everything from computer processor chips to car engines. According to Peter Hagelstein, an associate professor of Electrical Engineering at MIT, existing solid-state devices to convert heat into electricity are not very efficient. Experimenting with thermal diodes, an MIT team has come closer to the theoretical limitations for the efficiency of such a conversion.

Posted in: Energy Efficiency, Thermoelectrics, Energy, Transportation, News, GDM

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Japan Wins Australia's Global Green Challenge

The "Tokai Challenger" solar car from Japan's Tokai University won the 3,000 kilometer Global Green Challenge race down the center of Australia. The Tokai Challenger maintained an average speed of over 100 kilometers per hour, or about 62 miles per hour, besting the winner of the previous four races - the Dutch Nuon Solar Team.

Posted in: Batteries, Electronics & Computers, Alternative Fuels, Green Design & Manufacturing, Solar Power, Renewable Energy, Energy, Transportation, News, GDM

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New Material Could Boost Data Storage, Save Energy

North Carolina State University engineers have developed a new material that would allow a fingernail-size computer chip to store the equivalent of 20 high-definition DVDs or 250 million pages of text, far exceeding the storage capacities of today’s computer memory systems.

Posted in: Solar Power, Energy Efficiency, Renewable Energy, Energy, Transportation, News, GDM

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Battery Battle

A new type of redox flow battery from the Fraunhofer Institute for Chemical Technology (ICT) offers an advantage for electric cars. If the rechargeable batteries are low, the discharged electrolyte fluid can simply be exchanged at the gas station for recharged fluid – as easy as refilling the gas tank.

Posted in: Batteries, Electronics & Computers, Energy Storage, Energy, Transportation, News, GDM

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Lowering Solid Oxide Fuel Cell Cost

Georgia Tech researchers have developed a new ceramic material that could help expand the applications for solid oxide fuel cells – devices that generate electricity directly from a wide range of liquid or gaseous fuels without the need to separate hydrogen.

Posted in: Alternative Fuels, Green Design & Manufacturing, Energy Efficiency, Energy, Transportation, News, GDM

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Hydrogen Storage Competition

DOE has launched the H-Prize competition, offering a $1 million award to an individual or team that creates the most advanced materials for hydrogen storage in vehicles.

Posted in: Alternative Fuels, Green Design & Manufacturing, Energy Storage, Energy, Transportation, News, GDM

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Mobile Ridesharing Device Reduces Traffic, Pollution

In spite of rising energy prices, many car drivers in large cities still ride alone. Fraunhofer's OpenRide mobile ridesharing service aims to save them money, while helping the environment by reducing the amount of traffic.

Posted in: Pollution, Transportation, News, Products, GDM

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