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Researchers devise method to suppress thermal conductivity to improve thermoelectric materials for waste heat recovery

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A new study published in the journal Nature Materials has found a way to suppress the thermal conductivity in sodium cobaltate so that it can be used to harvest waste energy, with potential applications such as automotive waste heat recovery. CoO 2 , which has a large-period superstructure. —Voneshen et al. Gutmann, M.

Waste 186
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ARPA-E awarding $39M to 16 projects to grow the domestic critical minerals supply chain

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The US Department of Energy’s (DOE’s) Advanced Research Projects Agency-Energy (ARPA?E) E) will award $39 million in funding to 16 projects across 12 states to develop market-ready technologies that will increase domestic supplies of critical elements required for the clean energy transition. Earlier post.)The

Supplies 345
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New power-dense 2.0L GDI turbo with twin-scroll turbocharger and new combustion system offered in 2013 Chevrolet Malibu

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Rotocast aluminum cylinder head with sodium-filled exhaust valves. Rotocast aluminum cylinder head with sodium-filled exhaust valves. The exhaust valves have sodium-filled stems that promote valve cooling. At normal engine operating temperatures, the sodium inside the valve stem becomes liquid.

2013 236
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Drexel researchers demonstrate intercalation of MXenes with a variety of ions; high volumetric capacitance

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The fact that MXenes can accommodate ions and molecules in this way is significant because it expands their ability to store energy. Barsoum and Gogotsi’s report looks at intercalation of MXenes with a variety of ions, including lithium, sodium, magnesium, potassium, ammonium and aluminum ions. —Yury Gogotsi.

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Pike Research forecasts hybrid electric locomotive sales could reach nearly 500 units from 2011 to 2020; to utilize 514 MWh of battery capacity by 2020

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The market will receive a boost from new diesel locomotive emissions regulations scheduled to go into effect in the European Union in 2014 and in North America in 2015, which will require diesel locomotives to receive substantial changes or exhaust treatments. —senior analyst Dave Hurst.

2020 218
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Nissan Unveils New 3-Cylinder 1.2L Supercharged Gasoline Direct Injection Engine; Targeting Lowest Fuel Consumption for Gasoline Engine

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Moreover, the highly compressed and high-temperature air-fuel mixture is cooled by the latent heat of the vaporization of fuel directly injected into the cylinder, and the temperature of the combustion chamber is lowered by adopting a piston-cooling channel and sodium-filled valves to control detonation. km/L (61 mpg US, 3.85

Gasoline 218
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Pike Research forecasts accelerating hybrid locomotive sales from 2015-2020

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MWh of energy in 2020. In 2001, Railpower launched the first hybrid electric switching locomotive in North America, using battery energy storage, called the Green Goat. By 2014 in the European Union and 2015 in North America, the current diesel locomotive will require substantial changes or exhaust treatments to meet emission rules.

2015 239