How did fuzzy logic help a group of researchers in Tunisia and Algeria create an ideal photovoltaic system that obeys the supply-and-demand principle and its delicate balance? In the Journal of Renewable & Sustainable Energy, the group describes a new sizing system of a solar array and a battery in a standalone photovoltaic system that is based on fuzzy logic.
Oil and gas operations in the U.S. produce about 21 billion barrels of wastewater per year. The...
Oak Ridge National Laboratory and Whirlpool Corp. are collaborating to design a refrigerator...
Many car buyers weighing whether they should go all electric to help the planet have at least...
Ensuring the power grid keeps the lights on in large cities could be easier with a new battery design that packs far more energy than any other battery of its kind and size. The new zinc-polyiodide redox flow battery, described in Nature Communications, uses an electrolyte that has more than two times the energy density of the next-best flow battery used to store renewable energy and support the power grid.
The 2015 Laboratory Design Conference is open for registration. Your opportunity to learn, network and participate in discussions about current and future trends in lab design is coming to Atlanta, April 27-29th. The countdown to the conference has begun, and here’s a countdown of reasons why you should be there.
Scientists of the Univ. of Luxembourg and of the Japanese electronics company TDK report progress in photovoltaic research: They have improved a component that will enable solar cells to use more energy of the sun and thus create a higher current. The improvement concerns a conductive oxide film which now has more transparency in the infrared region.
To power a car so it can travel hundreds of miles at a time, lithium-ion batteries of the future are going to have to hold more energy without growing too big in size. That's one of the dilemmas confronting efforts to power cars through rechargeable battery technologies. In order to hold enough energy to enable a car trip of 300 to 500 miles before recharging, current lithium-ion batteries become too big or too expensive.
Researchers at the Univ. of California, Riverside have invented a novel pretreatment technology that could cut the cost of biofuels production by about 30% or more by dramatically reducing the amount of enzymes needed to breakdown the raw materials that form biofuels.
Dendrites create fire hazards and can limit the ability of batteries to power our smart phones and store renewable energy for a rainy day. Now a new electrolyte for lithium batteries that's described in Nature Communications eliminates dendrites while also enabling batteries to be highly efficient and carry a large amount of electric current.
Currently, there are treatments in which wastewater can flow out to the river or sea without causing any environmental problems. These technologies however entail high energy costs, mainly in aeration and pumping, and an elevated economic cost in treating the sludge left over from the treatment process.
Rice Univ. researchers have developed an easy and accurate technique to detect and quantify the amount of asphaltene precipitated from crude oils, which bedevils the oil industry by clogging wells and flow lines. Asphaltene is a complex of hydrocarbon molecules found in crude. As the name suggests, it has uses as the source of asphalt for road construction and can also be made into waterproofing and roofing materials and other products.
Paving the way for lighter and more flexible solar devices, Univ. of California, Los Angeles researchers have identified the key principles for developing high-efficiency polymer solar cells. Today’s commercially produced solar panels use silicon cells to efficiently convert sunlight to energy. But silicon panels are too heavy to be used for energy-producing coatings for buildings and cars, or flexible and portable power supplies.
Univ. of Tokyo researchers have developed a novel selective catalyst that allows the creation of several basic chemicals from biomass instead of petroleum. This discovery may lead to the use of plant biomass as a basic feedstock for the chemical industry. The new catalyst enables selective cleaving (hydrogenolysis) of carbon-oxygen (C-O) single bonds in phenols and aryl methyl ethers, two of the main components of lignin.
Battery maker A123 Systems is suing Apple, claiming it aggressively poached some key staff members in violation of their nondisclosure and non-compete agreements when they left A123.
A professor and his students have turned a material commonly used in surgical gloves into a low-cost, highly efficient air filter. It could be used to improve facemasks and window screens, and maybe even scrub the exhaust from power plants.
Researchers have successfully created electricity-generating solar-cells with chemicals found the shells of shrimps and other crustaceans for the first time.
Redesigned Environmental Protection Agency fuel economy labels on cars for sale are likely ineffective in pointing out total savings of hybrid and electric plug-in cars over gasoline vehicles, according to new research involving two Univ. of Kansas professors. The researchers found that consumers for small to mid-sized cars would be more likely to choose a hybrid or plug-in electric vehicle if they know the total cost of ownership.
Researchers at the Univ. of California, Riverside have developed a novel paper-like material for lithium-ion batteries. It has the potential to boost by several times the specific energy, or amount of energy that can be delivered per unit weight of the battery. This paper-like material is composed of sponge-like silicon nanofibers more than 100 times thinner than human hair.
The depth and efficiency of the U.S. natural gas market would buffer it against potential local policy interventions aimed at limiting access to shale gas resources, according to a new paper by energy economists at Rice Univ.’s Baker Institute for Public Policy.
Univ. of Wisconsin-Madison geoscientists and engineers are working with industry partners and the U.S. Dept. of Energy to develop a highly detailed monitoring system for geothermal wells. Man-made geothermal systems that emulate natural ones could, by some conservative estimates, produce a total of 100 gigawatts of cost-competitive electricity over the next 50 years.
It’s a well-known fact that labs consume four times more energy per square foot than a typical office building. And while ventilation and plug loads account for much of this energy use, proper design and detailing of building envelopes can have a significant impact on the energy demands of lab buildings.
The design of laboratories for sustainable construction and operation has become a major driver in the A/E/C industry over the past 10 to 15 years. Most large academic, government and corporate laboratory clients are looking for sustainable design approaches at a minimum, and third-party certification, such as LEED, in many cases.
Researchers working with photovoltaic (PV) technologies and production processes have made great strides over the past several years, such that PV systems are now considered a viable and cost-competitive energy alternative to traditional fossil fuel energy sources. The number of installations continues to increase, while panel and system costs continue to decline.
A plateau on the Arctic Ocean floor, where thousands of Pacific walrus gather to feed and raise pups, has received new protections from the Obama administration that recognize it as a biological hot spot and mark it off-limits to future oil drilling. But the announcement triggered an uproar from Alaska leaders, angry that the federal government was making a decision that they said would harm the state's economy.
Inadequate insulation is one of the largest causes of wasted energy, quickly allowing comfortable heating or cooling to disperse air outside. That’s why researchers at Oak Ridge National Laboratory are collaborating with industry to develop a high-performance material that nearly doubles the performance of traditional insulators without a high cost premium.
Lawrence Berkeley National Laboratory battery scientist Nitash Balsara has worked for many years trying to find a way to improve the safety of lithium-ion batteries. Now he believes he has found the answer in a most unlikely material: a class of compounds that has mainly been used for industrial lubrication.
Even at historically low natural gas prices, bioenergy may not be out of the running: It just may need a little help from the sun. A new study from researchers at the Univ. of Minnesota examining the financial viability of solar-heated biomass gasification technologies that produce a natural gas substitute product concludes that combining these renewable resources can make economic sense.
Generating electricity from biomass, such as urban waste and sustainably sourced forest and crop residues, is one strategy for reducing greenhouse gas emissions, because it is carbon-neutral: It produces as much carbon as the plants suck out of the atmosphere.
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