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Newly engineered material can cool roofs, structures with zero energy consumption

Wed, 15 Feb 2017 16:24:00 EST

A team of University of Colorado Boulder engineers has developed a scalable manufactured metamaterial — an engineered material with extraordinary properties not found in nature — to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption.When applied to a surface, the metamaterial film cools the object underneath by efficiently reflecting incoming solar energy back into space while simultaneously allowing the surface to shed its own heat in the form of infrared thermal radiation.(image)



Long-lasting flow battery could run for more than a decade with minimum upkeep

Tue, 14 Feb 2017 15:44:00 EST

Researchers from the Harvard John A. Paulson School of Engineering and Applied Sciences (SEAS) have developed a new flow battery that stores energy in organic molecules dissolved in neutral pH water. This new chemistry allows for a non-toxic, non-corrosive battery with an exceptionally long lifetime and offers the potential to significantly decrease the costs of production.(image)



Wind Surpasses Hydroelectric as Top U.S. Renewable Energy Source

Fri, 10 Feb 2017 14:57:00 EST

For decades, hydroelectric dams served as the United States’ top source of renewable energy. But last year, wind power took the top spot, according to a new report by the American Wind Energy Association, an industry trade group. It is now the fourth largest source of energy in the U.S., behind natural gas, coal, and nuclear.(image)



Newly engineered material can cool roofs, structures with zero energy consumption

Thu, 09 Feb 2017 15:03:00 EST

A team of University of Colorado Boulder engineers has developed a scalable manufactured metamaterial — an engineered material with extraordinary properties not found in nature — to act as a kind of air conditioning system for structures. It has the ability to cool objects even under direct sunlight with zero energy and water consumption.(image)



Real-time feedback helps save energy and water

Thu, 09 Feb 2017 09:33:00 EST

Those who take long showers use a great deal of water and energy. Yet people who enjoy taking long showers do not usually realize to what extent they are damaging the environment. However, if a clever measuring system shows current consumption, this immediately leads to increased efficiency. The consumption information available on the display is incentive enough to reduce water and energy consumption when showering on average by 22 per cent. This was shown by a study conducted by the Universities of Bonn and Bamberg, as well as ETH Zurich. The results have initially been published online in the journal Management Science. The print edition will be published soon.(image)



Recycling yogurt waste to produce electricity, nutrients and more dairy foods

Wed, 08 Feb 2017 13:47:00 EST

America’s appetite for Greek yogurt has skyrocketed over the past decade. But for every container of Greek yogurt consumed, you could fill two or three more with the acid whey it produces. The cover story in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society, takes a look at the interesting ways scientists are making use of the byproduct.(image)



Svalbard's electric power could come from hydrogen

Wed, 08 Feb 2017 14:06:00 EST

The energy supply to Longyearbyen, midway between continental Norway and the North Pole, is a hot topic in the climate debate.Longyearbyen is the largest settlement and the administrative centre of Svalbard, a Norwegian archipelago in the Arctic Ocean. Today, Longyearbyen obtains its electric power and district heating from its coal power plant, the only one in Norway.(image)