Showing 20 articles starting at article 521

< Previous 20 articles        Next 20 articles >

Categories: Anthropology: Cultures, Energy: Alternative Fuels

Return to the site home page

Energy: Alternative Fuels
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.

Energy: Alternative Fuels
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.

Energy: Alternative Fuels Energy: Fossil Fuels
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.

Energy: Alternative Fuels
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.

Energy: Alternative Fuels
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.

Energy: Alternative Fuels
Published

As the grid adds wind power, researchers have to reengineer recovery from power outages      (via sciencedaily.com) 

When electric grids go down, there's no way to restore them -- 'blackstart' them -- with power from wind turbines. A team is now working to develop strategies and controllers that would reenergize power grids dominated by wind power. In Iowa, wind turbines now produce 55% of the state's electricity.

Energy: Alternative Fuels Geoscience: Environmental Issues
Published

Researchers develop new biobattery for hydrogen storage      (via sciencedaily.com) 

A team of microbiologists has succeeded in using bacteria for the controlled storage and release of hydrogen. This is an important step in the search for carbon-neutral energy sources in the interest of climate protection.

Energy: Alternative Fuels
Published

Experts forecast the wind plant of the future to be taller and more economical      (via sciencedaily.com) 

Anticipating key features of wind plants a decade or more ahead of their installation can inform today's investment, research, and energy system planning decisions. Researchers elicited opinions from more than 140 of the world's leading experts about their expectations of future wind plant design in 2035.

Energy: Alternative Fuels
Published

New tech aims to drive down costs of hydrogen fuel      (via sciencedaily.com) 

Researchers have developed a new technique for extracting hydrogen gas from liquid carriers which is faster, less expensive and more energy efficient than previous approaches.

Energy: Alternative Fuels Energy: Fossil Fuels
Published

Hydrogen production method opens up clean energy possibilities      (via sciencedaily.com) 

A new energy-efficient way to produce hydrogen gas from ethanol and water has the potential to make clean hydrogen fuel a more viable alternative for gasoline to power cars.

Energy: Alternative Fuels
Published

Sparking sustainable new chemical catalysts      (via sciencedaily.com) 

New research could lead to the creation of new, sustainable catalysts based on tungsten oxide and similar compounds. The project used computational simulations to understand how tungsten oxide interacts with hydrogen at the molecular level and the findings were verified through lab experimentation.

Energy: Alternative Fuels
Published

Improved wind forecasts save consumers millions in energy costs      (via sciencedaily.com) 

Scientists determined that by increasing the accuracy of weather forecasts over the last decade, consumers netted at least $384 million in energy savings. The researchers based their predictions on NOAA's High Resolution Rapid Refresh model, which provides daily weather forecasts for every part of the U.S. These include wind speed and direction data, which utilities can use to gauge how much energy their turbines will produce.

Energy: Alternative Fuels Energy: Fossil Fuels
Published

Scientists show how to store liquid fuels in polymeric gels to prevent explosions and fires      (via sciencedaily.com) 

Liquid fuels with high energy density, though used worldwide, are dangerous to transport and store owing to their volatility, which produces explosive gas mixtures. To address this problem, researchers recently investigated the possibility of storing liquid fuel within polymeric gel networks, preventing their fast evaporation, and demonstrating good combustion performance. Their work paves the way for safer transport and storage of liquid fuels.

Energy: Alternative Fuels
Published

Scientists advance renewable hydrogen production method      (via sciencedaily.com) 

Perovskite materials may hold the potential to play an important role in a process to produce hydrogen in a renewable manner, according to a recent analysis. Hydrogen has emerged as an important carrier to store energy generated by renewable resources, as a substitute for fossil fuels used for transportation, in the production of ammonia, and for other industrial applications.

Energy: Alternative Fuels
Published

The mystery solved about the active phase in catalytic carbon dioxide reduction to methanol      (via sciencedaily.com) 

Researchers have been able to study the surface of a copper-zinc catalyst when carbon dioxide is reduced to methanol. A better knowledge of the catalytic process and the possibility of finding even more efficient materials opens the door for a green transition in the chemical industry.

Energy: Alternative Fuels
Published

Rapid adaptation of deep learning teaches drones to survive any weather      (via sciencedaily.com) 

Neural-Fly technology could one day build the future of package delivery drones and flying cars.

Energy: Alternative Fuels Energy: Fossil Fuels
Published

Lignin-based jet fuel packs more power for less pollution      (via sciencedaily.com) 

An experimental plant-based jet fuel could increase engine performance and efficiency, while dispensing with aromatics, the pollution-causing compounds added to conventional fuels, according to new research.

Energy: Alternative Fuels Energy: Fossil Fuels
Published

Cheaper hydrogen fuel cell could mean better green energy options      (via sciencedaily.com) 

Researchers have developed a hydrogen fuel cell that uses iron instead of rare and costly platinum, enabling greater use of the technology.

Energy: Alternative Fuels
Published

Study finds offshore wind could drive down energy costs in New England, US      (via sciencedaily.com) 

While wind power is expected to be a 'saving grace' during extreme winter storms, researchers wanted to look at whether storms could also disrupt power supplies and drive up prices.

Energy: Alternative Fuels
Published

Key to improved green tech efficiency found in simple acid treatment      (via sciencedaily.com) 

The development of new, more efficient electrochemical cells could provide a good option for carbon-free hydrogen and chemical production along with large-scale electricity generation and storage. But first, scientists must overcome several challenges, including how to make the cells more efficient and cost-effective.