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Sun, wind, and power trading

Added: 19.01.2018 22:56 | 0 views | 0 comments

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The use of renewables like the sun and wind can cause fluctuations in power grids. But what impact do these fluctuations have on security of supply? To answer this question, scientists analyzed different types of fluctuations in several power grids in Europe, Japan, and the USA -- and came to surprising conclusions.

Source: feeds.sciencedaily.com

A water-based, rechargeable battery

Added: 19.01.2018 22:56 | 0 views | 0 comments

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In the quest to find safe, low-cost batteries for the future, eventually we have to ask ourselves a question: Why not simply use water as an electrolyte? Water is cheap, in abundant supply, doesn’t burn and can conduct ions. But it has one major drawback: It is only chemically stable up to a voltage of 1.23 volts. In other words, a water cell provides three times less voltage than a customary lithium ion cell with 3.7 volts, which makes it poorly suited for applications in an electric car. A cost-effective, water-based battery, however, could be extremely interesting for stationary electricity storage applications.

Tags: Chemicals
Source: feeds.sciencedaily.com

Water-based, eco-friendly and energy-saving air-conditioner

Added: 18.01.2018 21:43 | 0 views | 0 comments

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A team of researchers has pioneered a new water-based air-conditioning system that cools air to as low as 18 degrees Celsius without the use of energy-intensive compressors and environmentally harmful chemical refrigerants.

Source: feeds.sciencedaily.com

Using electricity to switch magnetism

Added: 18.01.2018 11:44 | 0 views | 0 comments

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Scientists have managed to use electrical fields to control the magnetic oscillations of certain ferrous materials. This has opened up huge potential for computer technology applications, as data is currently transferred in the form of electrical signals but stored magnetically.

Source: feeds.sciencedaily.com

Coupling experiments to theory to build a better battery

Added: 18.01.2018 10:08 | 0 views | 0 comments


Researchers has reported that a new lithium-sulfur battery component allows a doubling in capacity compared to a conventional lithium-sulfur battery, even after more than 100 charge cycles.

Tags: Couples, Cher
Source: feeds.sciencedaily.com

Lifespan of fuel cells maximized using small amount of metals

Added: 18.01.2018 10:08 | 0 views | 0 comments

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Researchers have described a new technique to improve chemical stability of electrode materials which can extend the lifespan by employing a very little amount of metals. Using computational chemistry and experimental data, the team observed that local compressive states around the Sr atoms in a perovskite electrode lattice weakened the Sr-O bond strength, which in turn promote strontium segregation.

Source: feeds.sciencedaily.com

Semiconductor breakthrough may be game-changer for organic solar cells

Added: 17.01.2018 13:11 | 0 views | 0 comments

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In an advance that could push cheap, ubiquitous solar power closer to reality, researchers have found a way to coax electrons to travel much further than was previously thought possible in the materials often used for organic solar cells and other organic semiconductors.

Tags: Cher
Source: feeds.sciencedaily.com

Ultra-thin memory storage device paves way for more powerful computing

Added: 17.01.2018 11:49 | 0 views | 0 comments

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A team of electrical engineers has developed the thinnest memory storage device with dense memory capacity, paving the way for faster, smaller and smarter computer chips for everything from consumer electronics to big data to brain-inspired computing.

Source: feeds.sciencedaily.com

Ultrathin black phosphorus for solar-driven hydrogen economy

Added: 17.01.2018 10:26 | 0 views | 0 comments

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Researchers combined two different types of 2-D materials -- black phosphorus and bismuth vanadate -- to form a biologically inspired water-splitting catalyst. Normal sunlight could drive the reactions and careful design of the catalyst enabled the expected ratio of hydrogen and oxygen production.

Tags: Economy, Cher
Source: feeds.sciencedaily.com

Shale gas is one of the least sustainable ways to produce electricity, research finds

Added: 16.01.2018 17:30 | 0 views | 0 comments

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Shale gas is one of least sustainable options for producing electricity, according to new research.

Source: feeds.sciencedaily.com

New process could slash energy demands of fertilizer, nitrogen-based chemicals

Added: 16.01.2018 14:43 | 0 views | 0 comments

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Nitrogen-based synthetic fertilizer forms the backbone of the world food supply, but its manufacture requires a tremendous amount of energy. Now, computer modeling points to a method that could drastically cut the energy needed by using sunlight in the manufacturing process.

Source: feeds.sciencedaily.com

Mysteries of a promising spintronic material revealed

Added: 16.01.2018 11:11 | 0 views | 0 comments

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Researchers have used an unconventional approach to determine the strength of the electron spin interactions with the optical phonons in antiferromagnetic nickel oxide (NiO) crystals.

Tags: Cher
Source: feeds.sciencedaily.com

Making solar energy more efficient

Added: 15.01.2018 21:40 | 0 views | 0 comments

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Researchers have demonstrated methods of optimizing the capture of sunlight.

Tags: Cher
Source: feeds.sciencedaily.com

Pulses of light to encrypt data and protect security of cryptocurrencies

Added: 15.01.2018 0:29 | 0 views | 0 comments

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Data travels through thousands of miles of fiber optic cables underneath the world's oceans -- via pulses of light. And according to experts, the data in these cables is at great risk of being intercepted. However, a newly designed frequency comb might be an effective tool for data encryption.

Tags: Rita Ora, USA
Source: feeds.sciencedaily.com

New lithium-rich battery could last much longer

Added: 14.01.2018 22:32 | 0 views | 0 comments

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By using iron and oxygen to simultaneously drive the electrochemical reaction, a novel battery is less expensive and has a higher capacity.

Tags: Iran Air
Source: feeds.sciencedaily.com

Carbon nanotubes devices may have a limit to how 'nano' they can be

Added: 14.01.2018 22:32 | 0 views | 0 comments

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Carbon nanotubes bound for electronics not only need to be as clean as possible to maximize their utility in next-generation nanoscale devices, but contact effects may limit how small a nano device can be, according to researchers.

Tags: Cher
Source: feeds.sciencedaily.com

New desalination method offers low energy alternative to purify salty water

Added: 14.01.2018 22:32 | 0 views | 0 comments


Providing safer drinking water to those in need may be a little easier. A new desalination technique is able to remove salt from water using less energy than previous methods.

Source: feeds.sciencedaily.com

A fossil fuel technology that doesn't pollute

Added: 14.01.2018 22:32 | 0 views | 0 comments

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Engineers are developing technologies that have the potential to economically convert fossil fuels and biomass into useful products including electricity without emitting carbon dioxide to the atmosphere.

Source: feeds.sciencedaily.com

Exploring electrolysis for energy storage

Added: 14.01.2018 22:32 | 0 views | 0 comments

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A research team developed a flow-type polymer electrolyte cell for power storage. The cell reduces oxalic acid (OX) to glycolic acid, which has a higher volumetric energy-storage capacity than hydrogen gas. Newly fabricated TiO2 cathode enhanced the speed and efficiency of OX reduction. This competitive energy-storage device could be used to balance out the fluctuations in renewable power supplies.

Source: feeds.sciencedaily.com

New model considers an extra factor to improve our prediction of nuclear fission

Added: 14.01.2018 22:32 | 0 views | 0 comments

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Researchers have proposed an improved model for predicting the generation of thermal energy from nuclear fission processes, by focusing on Uranium-236. This model can help improve efficiency in nuclear power generation.

Tags: Cher
Source: feeds.sciencedaily.com

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