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Vertical turbines could be the future for wind farms

The now-familiar sight of traditional propeller wind turbines could be replaced in the future with wind farms containing more compact and efficient vertical turbines. New research from Oxford Brookes University has found that the vertical turbine design is far more efficient than traditional turbines in large scale wind farms, and when set in pairs the vertical turbines increase each other s performance by up to 15%. ....

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US power sector is halfway to zero carbon emissions

Credit: Berkeley Lab
Concerns about climate change are driving a growing number of states, utilities, and corporations to set the goal of zeroing out power-sector carbon emissions. To date 17 states plus Washington, D.C. and Puerto Rico have adopted laws or executive orders to achieve 100% carbon-free electricity in the next couple of decades. Additionally, 46 U.S. utilities have pledged to go carbon free no later than 2050. Altogether, these goals cover about half of the U.S. population and economy.
These are ambitious targets, but a new look at the past 15 years in the electricity sector shows that large reductions in emissions are possible. ....

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Petra Fromme honored with the prestigious Anfinsen Award

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IMAGE: Petra Fromme is the director of the Biodesign Center for Applied Structural Discovery at ASU as well as a Regents Professor of Biochemistry with the School of Molecular Sciences in.
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Credit: The Biodesign Institute at Arizona State University
Arizona State University researcher Petra Fromme has received the 2021 Christian B. Anfinsen Award. The honor is bestowed by The Protein Society, the premier international association dedicated to supporting protein research.
In presenting Fromme with this prestigious prize, the Protein Society recognizes her groundbreaking efforts to advance the field of protein research, using ultra-high-speed X-ray crystallography to probe matter at the tiniest scales and shortest time durations. ....

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Story tips: Mighty Mo material, fueling retooling, goods on the move, doubling concrete and more

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IMAGE: ORNL researchers used electron beam powder bed fusion to produce refractory metal molybdenum, which remained crack free and dense, proving its viability for additive manufacturing applications.
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Credit: ORNL/U.S. Dept. of Energy
Manufacturing - Mighty Mo
Oak Ridge National Laboratory scientists proved molybdenum titanium carbide, a refractory metal alloy that can withstand extreme temperature environments, can also be crack free and dense when produced with electron beam powder bed fusion. Their finding indicates the material s viability in additive manufacturing.
Molybdenum, or Mo, as well as associated alloys, are difficult to process through traditional manufacturing because of their high melting temperature, reactivity with oxygen and brittleness. ....

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Diversity can prevent failures in large power grids

Credit: Matthew Henry
The recent power outages in Texas brought attention to its power grid being separated from the rest of the country. While it is not immediately clear whether integration with other parts of the national grid would have completely eliminated the need for rolling outages, the state s inability to import significant amounts of electricity was decisive in the blackout.
A larger power grid has perks, but also has perils that researchers at Northwestern University are hoping to address to expedite integration and improvements to the system.
An obvious challenge in larger grids is that failures can propagate further in the case of Texas, across state lines. Another is that all power generators need to be kept synchronized to a common frequency in order to transmit energy. The U.S. is served by three separate grids: The Eastern interconnection, the Western interconnection and the Texas interconnection, interlinked only by direct-current power lines. A ....

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