Energy

First Step in Converting Solar Energy Using Artificial Leaf

Two things are needed to produce fuel from sunlight: an antenna that harvests light, and a light-driven catalyst. The most efficient antennae contain bacteria. An international team, headed by Leiden University professor Huub de Groot, modified chlorophyll from an alga so that it resembles the extremely efficient light antennae of bacteria.

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

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Saving Energy With Artifical Noise

Ecological and economic factors are prompting telecommunications companies to deploy energy-saving systems. Scientists at Germany's Fraunhofer Institute for Communication Systems ESK provide a solution that combines existing methods - which network providers could implement immediately.

Posted in: Energy Efficiency, Energy, News, GDM

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Electromagnetically Clean Solar Arrays

The term “electromagnetically clean solar array” (EMCSA) refers to a panel that contains a planar array of solar photovoltaic cells. The cells are laminated with shielding, narrow-current-loop wiring, and structural supports. EMCSAs could be useful in applications that require limited electromagnetic interference.

Posted in: Solar Power, Renewable Energy, Energy, Briefs, GDM

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Feather Fibers Fluff Up Hydrogen Storage Capacity

Scientists have developed a new hydrogen storage method - carbonized chicken feather fibers - that can hold vast amounts of hydrogen, and do it at a far lower cost than other hydrogen storage systems. The research could help overcome some of the hurdles to using hydrogen fuel in cars, trucks, and other machinery.

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

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Sensing Method Checks Refrigerant Levels, Saves Energy

A new “virtual refrigerant charge sensor" saves energy and servicing costs by indicating when air conditioners are low on refrigerant, preventing the units from working overtime. Engineers at Purdue University developed the sensing technique, which is particularly practical for automotive air conditioners.

Posted in: Energy Efficiency, Energy, News, GDM

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Fuel-Cell Power Systems Incorporating Mg-Based H2 Generators

Two hydrogen generators based on reactions involving magnesium and steam have been proposed at NASA’s Jet Propulsion Laboratory as means for generating fuel (hydrogen gas) for motor vehicles. The generators would make it unnecessary to rely on expensive, heavy, bulky, or unsafe hydrogen storage systems previously developed.

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

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A Step Toward Producing Plastic from Biomass

Researchers with Berkeley Lab and the University of California (UC) Berkeley have discovered a mild and relatively inexpensive procedure for removing oxygen from biomass. This procedure, if it can be effectively industrialized, could allow many of today’s petrochemical products, including plastics, to instead be made from biomass.

Posted in: Alternative Fuels, Green Design & Manufacturing, Biomass, Renewable Energy, Energy, News, GDM

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