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Categories: Energy: Alternative Fuels, Space: The Solar System
Published On Jupiter's moon Europa, 'chaos terrains' could be shuttling oxygen to ocean
(via sciencedaily.com) Researchers have built the world's first physics-based computer simulation of oxygen transport on Europa, finding that it's possible for oxygen to drain through the moon's icy shell and into its ocean of liquid water -- where it could potentially help sustain alien life -- by hitching a ride on salt water under the moon's 'chaos terrains.' The results show that not only is the transport possible, but that the amount of oxygen brought into Europa's ocean could be on a par with the quantity of oxygen in Earth's oceans today.
Published Scientists solve solar secret
(via sciencedaily.com) The further we move away from a heat source, the cooler the air gets. Bizarrely, the same can't be said for the surface of the Sun, but scientists may have just explained a key part of why.
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 Nearby star could help explain why our Sun didn’t have sunspots for 70 years
(via sciencedaily.com) Astronomers identified a nearby star whose sunspot cycles appear to have stopped. Studying this star might help explain the unusual period from the mid 1600s to the early 1700s when our Sun paused its sunspot cycles.
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 Look! Up in the sky! Is it a planet? Nope, just a star
(via sciencedaily.com) Original source Among thousands of known exoplanets, astronomers have flagged three that are actually stars.
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 Magnetic reconnection breakthrough may help predict space weather
(via sciencedaily.com) Researchers have recently discovered a breakthrough in magnetic reconnection that could ultimately help predict space weather.
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 A solar illusion: Coronal loops may not be what they seem
(via sciencedaily.com) Many coronal loops -- ropey strands of plasma that scientists have long thought existed in the sun's atmosphere -- may actually be optical illusions, according to a new paper that challenges prevailing assumptions of what we know, and don't know, about the sun.
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 Deep neural network to find hidden turbulent motion on the sun
(via sciencedaily.com) Scientists developed a neural network deep learning technique to extract hidden turbulent motion information from observations of the Sun. Tests on three different sets of simulation data showed that it is possible to infer the horizontal motion from data for the temperature and vertical motion. This technique will benefit solar astronomy and other fields such as plasma physics, fusion science, and fluid dynamics.
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 Predicting the efficiency of oxygen-evolving electrolysis on the Moon and Mars
(via sciencedaily.com) Scientists have today provided more insight into the possibility of establishing a pathway to generate oxygen for humans to potentially call the Moon or Mars 'home' for extended periods of time.
Published How Mars lost its oceans
(via sciencedaily.com) It has long been known that Mars once had oceans due in part to a protective magnetic field similar to Earth's. However, the magnetic field disappeared, and new research may finally be able to explain why. Researchers recreated conditions expected in the core of Mars billions of years ago and found that the behavior of the molten metal thought to be present likely gave rise to a brief magnetic field that was destined to fade away.