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Categories: Energy: Alternative Fuels, Geoscience: Geomagnetic Storms
Published Do wind instruments disperse COVID aerosol droplets?
(via sciencedaily.com) Orchestral ensembles have faced many challenges when starting to perform again during the COVID pandemic, and contamination is a chief concern: specifically, whether wind instruments are vectors of contamination through aerosol dispersion. Researchers worked with musicians to deepen our understanding of how much aerosol is produced and dispersed by wind instruments. They used visualization to characterize the flow, tracked fog particles in the air, and measured aerosol concentration from wind instruments with a particle counter. Then they combined these to develop an equation to describe aerosol dispersion.
Published New faster charging hydrogen fuel cell developed
(via sciencedaily.com) A new design for solid-state hydrogen storage could significantly reduce charging times.
Published A new method boosts wind farms' energy output, without new equipment
(via sciencedaily.com) Engineers have developed a method to increase wind farms' energy output. Whereas individual turbines are typically controlled separately, the new approach models the wind flow of the entire collection of turbines and optimizes the control of individual units.
Published Tweaking turbine angles squeezes more power out of wind farms
(via sciencedaily.com) New algorithm forces turbines in wind farms to be team players, boosting energy output overall.
Published Local renewable energy employment can fully replace U.S. coal jobs nationwide, study finds
(via sciencedaily.com) Across the United States, local wind and solar jobs can fully replace the coal-plant jobs that will be lost as the nation's power-generation system moves away from fossil fuels in the coming decades, according to a new study.
Published Understanding how rechargeable aqueous zinc batteries work
(via sciencedaily.com) While scientists have hoped that rechargeable zinc-manganese dioxide batteries could be developed into a viable alternative for grid storage applications, engineers have now identified the atomistic mechanism of charge and discharge in such batteries.
Published New wind sensor uses smart materials to improve drone performance
(via sciencedaily.com) Engineers have designed and successfully tested a more efficient wind sensor for use on drones, balloons and other autonomous aircraft.
Published Just 10 financial actors hold the key to climate change
(via sciencedaily.com) A new report has identified the 10 financial actors with the most influence on the fossil fuel economy and outlines the decisive role they can play in helping de-carbonize our future.
Published All-in-one solar-powered tower makes carbon-neutral jet fuel
(via sciencedaily.com) Researchers have designed a fuel production system that uses water, carbon dioxide (CO2), and sunlight to produce aviation fuel. They have implemented the system in the field, and the design could help the aviation industry become carbon neutral.
Published Ultrasonic detectors reveal the detrimental effect of wind turbines at forest sites on bats
(via sciencedaily.com) As more and more wind turbines (WTs) are installed in the course of the energy transition and distance regulations to human settlements are tightened, suitable locations are becoming increasingly difficult to find. As a result, wind turbines are increasingly being erected in forests -- to the detriment of forest specialists among bats.
Published Fuel cells: Novel multi-proton carrier complex as efficient proton conductor at high temps
(via sciencedaily.com) Fuel cells often fall short when it comes to operating at temperatures beyond 100 degrees Celsius owing to their dependence on water as a proton conduction medium. To overcome this issue, a team of researchers designed a new hydrogen-bonded starburst-shaped metal complex consisting of ruthenium (III) ion and six imidazole-imidazolate groups. The resulting single molecular crystal shows excellent proton conductivity even at temperatures as high as 180°C and as low as --70 °C.
Published Solar-powered chemistry uses carbon dioxide and water to make feedstock for fuels, chemicals
(via sciencedaily.com) Solar-powered synthesis gas could recycle carbon dioxide into fuels and useful chemicals, an international team of researchers has shown.
Published Caught in the act: Key chemical intermediates in pollutant-to-fuel reaction identified
(via sciencedaily.com) Researchers identified chemical intermediates in the hydrogenation of copper-adsorbed formate. Depending on the temperature, some of the hydrogenation product decomposed into formaldehyde. The activation energy was also quantified, based on experimental and computational work. These results will be useful for optimizing production of methanol fuel from carbon dioxide.
Published Offshore wind farms expected to reduce clam fishery revenue, study finds
(via sciencedaily.com) An important East Coast shellfish industry is projected to suffer revenue losses as offshore wind energy develops along the U.S. Northeast and Mid-Atlantic coasts, according to two recent studies.
Published Modern wind turbines can more than compensate for decline in global wind resource
(via sciencedaily.com) Wind energy contributes significantly to the energy sector's sustainable, low-CO2 transformation. However, the efficiency of wind turbines depends on available wind resources and the technical characteristics of the turbines.
Published Inspired by palm trees, scientists develop hurricane-resilient wind turbines
(via sciencedaily.com) New results from real-world tests of a downwind turbine could inform and improve the wind energy industry in a world with intensifying hurricanes and a greater demand for renewable energy.
Published Death of bats at wind turbines interrupts natural food chains
(via sciencedaily.com) The numerous casualties of bats at wind turbines (WT) have a negative impact on the populations of affected species and potentially far-reaching consequences for the biodiversity in rural areas. Until now, it could only be assumed that the death of bats had further consequences. Now, a team of scientists show that natural food chains are interrupted, which can have far-reaching negative consequences for agriculture and forestry. The study demonstrates the extent to which the functional importance of bats for habitats has been underestimated so far.
Published Earth-abundant solar pixels found to produce hydrogen for weeks
(via sciencedaily.com) Devices made of readily available oxide and carbon-based materials can produce clean hydrogen from water over weeks -- according to new research. The findings could help overcome one of the key issues in solar fuel production, where current earth-abundant light-absorbing materials are limited through either their performance or stability.
Published Ancient ocean floors could help in the search for critical minerals
(via sciencedaily.com) Studying ancient ocean floors could help us discover minerals needed to produce electric cars and solar panels.
Published Wind turbines operating without curtailment claim many victims among protected bat species in Germany
(via sciencedaily.com) Protected and rare bats regularly die at wind turbines (WT). This is why the operation of new wind turbines is temporarily curtailed during periods of high bat activity. Old wind turbines run without curtailment, however. A scientific team has now produced an exemplary estimate of bat fatality rates at such old turbines by systematically recording bat carcasses in the vicinity of the turbines. During two months, 70 bats died on average per wind turbine. Even if these figures cannot be extrapolated one-to-one to all 20,000 old turbines in Germany, there is a considerable need for action. The operation of old turbines should be adjusted to the current regulations for new turbines, the authors argue.