Showing 20 articles starting at article 401
< Previous 20 articles Next 20 articles >
Categories: Energy: Alternative Fuels, Geoscience: Geomagnetic Storms
Published Collision hotspots for migrating birds revealed in new study
(via sciencedaily.com) New research highlights the areas in Europe and North Africa where the construction of wind turbines or power lines is likely to increase the risk of death for migrating birds.
Published Scavenger nanoparticles could make fuel cell-powered vehicles a reality
(via sciencedaily.com) Engineers have developed a material that could give fuel cell systems a competitive edge over the battery systems that currently power most electric vehicles.
Published New method purifies hydrogen from heavy carbon monoxide mixtures
(via sciencedaily.com) Refining metals, manufacturing fertilizers and powering fuel cells for heavy vehicles are all processes that require purified hydrogen. But purifying, or separating, that hydrogen from a mix of other gases can be difficult, with several steps. Chemical engineers have now demonstrated that the process can be simplified using a pump outfitted with newly developed membrane materials.
Published Researchers discover source of super-fast electron 'rain'
(via sciencedaily.com) Scientists have discovered a new source of super-fast, energetic electrons raining down on Earth's atmosphere, a phenomenon that contributes to the colorful aurora borealis and poses hazards to satellites, spacecraft and astronauts.
Published Fuel from waste wood
(via sciencedaily.com) According to the latest assessment report from the Intergovernmental Panel on Climate Change, a considerable reduction in CO2 emissions is required to limit the consequences of climate change. Producing fuel from renewable sources such as waste wood and straw or renewable electricity would be one way to reduce carbon emissions from the area of transportation.
Published Carbon-coated nickel enables fuel cell free of precious metals
(via sciencedaily.com) A nitrogen doped carbon-coated nickel anode can catalyze an essential reaction in hydrogen fuel cells at a fraction of the cost of the precious metals currently used, researchers have found.
Published The opto-ionic effect: Light may increase performance of fuel cells and lithium-ion batteries
(via sciencedaily.com) Lithium-ion batteries, fuel cells and many other devices depend on the high mobility of ions in order to work properly. But there a large number of obstacles to such mobility. Researchers have now shown that light can be used to increase the mobility of ions and improve the performance of such devices.
Published Bionic wing flaps improve wind energy efficiency
(via sciencedaily.com) Scientists show a bionic approach combining features of a seagull's wing with an engineered flow control accessory, known as a Gurney flap, can greatly improve wind turbine performance. To achieve the best aerodynamic performance, the scientists simulated the use of the combined flow control accessory in a variety of situations, including high and low angle of attack and pre- and post-stall scenarios. They compared their computational simulations to experimental results for an aircraft wing undergoing a dynamic stall.
Published Wind, solar could replace coal power in Texas
(via sciencedaily.com) A fraction of the wind and solar projects already proposed in Texas could eliminate the state's remaining coal power plants and their emissions, according to engineers.
Published Cheaper, more efficient ways to capture carbon
(via sciencedaily.com) Researchers have developed a new tool that could lead to more efficient and cheaper technologies for capturing heat-trapping gases from the atmosphere and converting them into beneficial substances, like fuel or building materials.
Published Making green energy greener: Researchers propose method for wind turbine blades' recycling
(via sciencedaily.com) Wind turbine blades made from glass fiber-reinforced polymer (GFRP) laminate composites can serve for up to 25 years. After that, they end up in landfills which has become a real challenge for the renewable energy industry. Researchers have proposed a method for wind turbine blades' recycling. Using pyrolysis, they broke the composite materials into their constituent parts. According to scientists, the extracted materials can be reused, and the process is virtually waste-free.
Published Selecting the right structural materials for fusion reactors
(via sciencedaily.com) Do two promising structural materials corrode at very high temperatures when in contact with 'liquid metal fuel breeders' in fusion reactors? Researchers now have the answer. This high-temperature compatibility of reactor structural materials with the liquid breeder -- a lining around the reactor core that absorbs and traps the high energy neutrons produced in the plasma inside the reactor -- is key to the success of a fusion reactor design.
Published New, nature-inspired concepts for turning CO2 into clean fuels
(via sciencedaily.com) Researchers have developed an efficient concept to turn carbon dioxide into clean, sustainable fuels, without any unwanted by-products or waste.
Published A new, inexpensive catalyst speeds the production of oxygen from water
(via sciencedaily.com) Original source Researchers have developed a new type of catalyst material, called a metal hydroxide-organic framework (MHOF), which is made of inexpensive and abundant components. The catalyst speeds up the electrochemical reaction that splits apart water molecules to produce oxygen, which is at the heart of multiple approaches aiming to produce alternative fuels for transportation.
Published From the streets to the stratosphere: Clean driving technology enables cleaner rocket fuel
(via sciencedaily.com) Original source A chemical used in electric vehicle batteries could also give us carbon-free fuel for space flight, according to new research.
Published Nuclear power may be the key to least-cost, zero-emission electricity systems
(via sciencedaily.com) Nuclear power generation can play a crucial role in helping the world reach a key goal of zero carbon emissions by the middle of the century, especially in countries with low wind resources, according to new work.
Published Solar and wind power are key to decarbonizing Switzerland
(via sciencedaily.com) How can we reduce the carbon footprint of electricity consumption in Switzerland? The country relies on electricity imports from fossil fuel power plants, which are major emitters of greenhouse gases.
Published Jet stream models help inform US offshore wind development
(via sciencedaily.com) With the federal government planning to hold the largest sale of offshore wind farm leases in the nation's history, a new study could help inform the development of offshore wind farms by providing detailed models characterizing the frequency, intensity and height of low-level jet streams over the U.S. Atlantic coastal zone.
Published Scientists develop insect-sized flying robots with flapping wings
(via sciencedaily.com) A new drive system for flapping wing autonomous robots has been developed, using a new method of electromechanical zipping that does away with the need for conventional motors and gears.
Published Ancient ice reveals mysterious solar storm
(via sciencedaily.com) Through analysis of ice cores from Greenland and Antarctica, a research team has found evidence of an extreme solar storm that occurred about 9,200 years ago. What puzzles the researchers is that the storm took place during one of the sun's more quiet phases -- during which it is generally believed our planet is less exposed to such events.