Current Fuel Efficiency News and Events | Page 25

Current Fuel Efficiency News and Events, Fuel Efficiency News Articles.
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New valve technology promises cheaper, greener engines
Technology developed at the University of Waterloo reliably and affordably increases the efficiency of internal combustion engines by more than 10 per cent. (2018-03-21)

Potassium gives perovskite-based solar cells an efficiency boost
A simple potassium solution could boost the efficiency of next-generation solar cells, by enabling them to convert more sunlight into electricity. (2018-03-21)

Design approach developed for important new catalysts for energy conversion and storage
Northwestern University researchers have discovered a new approach for creating important new catalysts to aid in clean energy conversion and storage. The method also has the potential to impact the discovery of new optical and data storage materials and catalysts for higher efficiency processing of petroleum products at lower cost. The researchers created a catalyst that is seven times more active than state-of-the-art commercial platinum by combining theory, a new tool for synthesizing nanoparticles and more than one metallic element. (2018-03-21)

Development of an enzymatic cycling method using pyruvate kinase
Enzyme cycling is a sensitive assay method that exploits amplification techniques. We recently developed a novel enzymatic cycling method, which utilizes both the forward and reverse reactions of creatine kinase (CK), for the quantitative determination of creatine. (2018-03-16)

Soot transported from elsewhere in world contributes little to melting of some Antarctic glaciers
Airborne soot produced by wildfires and fossil-fuel combustion and transported to the remote McMurdo Dry Valleys of Antarctica contains levels of black carbon too low to contribute significantly to the melting of local glaciers, according to a new study by researchers supported by the National Science Foundation (NSF). (2018-03-16)

The view from inside supersonic combustion
In supersonic engines, achieving the right flow speed, producing the right ratio of evaporated fuel and causing ignition at the right time is complex. Vortices are affected by the shock wave, and this changes the way the fuel combusts and multiplies the number of possibilities of how particles can behave. To deepen our understanding, researchers use numerical modeling to calculate the huge variety of possible outcomes. They discuss their work in Physics of Fluids. (2018-03-15)

A catalyst with self-defense against oxygen
Even traces of oxygen can deactivate molecular catalyst that are incorporated in fuel cells. Consequently, this drawback hampered the use of such catalyst based on abundant metals, which mimic the active center of natural biocatalyst, in technological relevant applications. Now, a team of researchers from the Ruhr-Universität Bochum (RUB), the Max-Planck-Institute for Energy Conversion in Mülheim and the from the Pacific Northwest National Laboratories in Washington, USA, was able to equip such a catalyst (2018-03-14)

ORNL researchers design novel method for energy-efficient deep neural networks
Researchers at DOE's Oak Ridge National Laboratory (ORNL) have developed a novel method for more efficiently training large numbers of networks capable of solving complex science problems. Specifically, Mohammed Alawad, Hong-Jun Yoon, and Gina Tourassi of ORNL's Computer Science and Engineering Division, have demonstrated that by converting deep learning neural networks (DNNs) to 'deep spiking' neural networks (DSNNs) they can improve the efficiency of network design and training. (2018-03-14)

Turbocharging fuel cells with a multifunctional catalyst
Zero-emissions cars zipping into a sustainable energy future are just one dream powered by fuel cells. But cell technology has been a little sluggish and fuel prohibitively pricey. This new catalyst could offer a game changer. And there are more developments to come. (2018-03-14)

Painting a clear picture of how nitrogen oxides are formed
For decades, combustion researchers and engine companies have been seeking to understand how these gases are produced during combustion so that they can find ways to reduce them. Now Argonne researchers have synthesized more than a decade's worth of combustion studies to create a new overarching model of how nitrogen oxides are produced. (2018-03-12)

Taming biofuel-loving microbes
Most people are cautious around gasoline and diesel for good reason, but some microbes love the stuff -- especially biofuels that contain fatty acid derivatives. So, as the world tries to go 'green,' it also has to consider the slime that such microbes leave behind, clogging up equipment and killing engines. An article in Chemical & Engineering News (C&EN), the weekly newsmagazine of the American Chemical Society explores the issue and what's being done about it. (2018-03-07)

When it comes to fuel efficiency, size matters for hummingbirds
New research finds that larger hummingbirds show better mechanochemical efficiency -- the first time this has been observed in birds (2018-03-07)

All power to the proton: RMIT researchers make battery breakthrough
Australian researchers have demonstrated for the first time a working rechargeable 'proton battery' that could re-wire how we power our homes, vehicles and devices. (2018-03-07)

Cleaning nanowires to get out more light
A simple chemical surface treatment improves the performance of nanowire ultraviolet light-emitting diodes. (2018-03-06)

Scientists engineer crops to conserve water, resist drought
For the first time, scientists have improved how a crop uses water by 25 percent, without compromising yield, by altering the expression of one gene that is found in all plants. (2018-03-06)

Models show how to limit global temperature rise to 1.5°C
There are several ways to limit global temperature rise to 1.5°C by 2100, and new research led by IIASA researcher Joeri Rogelj shows under what conditions this could happen. (2018-03-05)

Story tips from the Department of Energy's Oak Ridge National Laboratory, March 2018
ORNL's new model could better predict tiny pockets of methylmercury lurking in creek algae; engines work smarter with new fuel innovation; making high-purity metallic structures narrower than a cold virus could advance tiny electronics, drug delivery and more; insights on certain enzymes that try to break down antibiotics may inform better drug designs for fighting resistant bacteria; ORNL is preparing current software simulations for small modular reactors to run on next-generation supercomputers. (2018-03-01)

Common bricks can be used to detect past presence of uranium, plutonium
Researchers have demonstrated a technique that can determine whether bricks -- the common building material -- have ever been near a radiological source, and identify the specific type of source, such as high enriched uranium or plutonium. (2018-03-01)

Solar-to-hydrogen conversion: Nanostructuring increases efficiency of metal-free photocatalysts by factor 11
Polymeric carbon nitrides exhibit a catalytic effect in sunlight that can be used for the production of hydrogen from solar energy. However, the efficiency of these metal-free catalysts is extremely low. A team at the Tianjin University in China, in collaboration with a group at the Helmholtz-Zentrum Berlin, has increased the catalytic efficiency of these polymeric carbon nitrides by a factor 11 through a simple process resulting in a larger surface area. The paper was published in the journal Energy & Environmental Science. (2018-02-28)

New evidence of nuclear fuel releases found at Fukushima
Uranium and other radioactive materials, such as caesium and technetium, have been found in tiny particles released from the damaged Fukushima Daiichi nuclear reactors. This could mean the environmental impact from the fallout may last much longer than previously expected according to a new study by a team of international researchers, including scientists from The University of Manchester. (2018-02-28)

Wood fuels key to easing food insecurity situation in sub-Saharan Africa
Access to wood fuels for cooking must be considered when formulating policy to deal with food insecurity in sub-Saharan Africa, according to researchers who advocate expanding the effort to improve wood-fuel systems and make them more sustainable. (2018-02-27)

Global fossil fuel emissions of hydrocarbons are underestimated
Global levels of ethane and propane in the atmosphere have been underestimated by more than 50 percent, new research involving scientists at the University of York has revealed. These hydrocarbons are particularly harmful in large cities where, through chemical reactions with emissions from cars, they form ozone -- a greenhouse gas which is a key component of smog and directly linked to increases in mortality. (2018-02-26)

With computation, researchers identify promising solid oxide fuel cell materials
Using advanced computational methods, University of Wisconsin-Madison materials scientists have discovered new materials that could bring widespread commercial use of solid oxide fuel cells closer to reality. (2018-02-22)

Beetroot juice supplements may help certain heart failure patients
Beetroot juice supplements may help enhance exercise capacity in patients with heart failure, according to a new proof-of-concept study. Exercise capacity is a key factor linked to these patients' quality of life and even survival. (2018-02-22)

Researchers invent light-emitting nanoantennas
Scientists from ITMO University developed new effective nanoscale light sources based on halide perovskite. Such nanosources are based on subwavelength nanoparticles serving both as emitters and nanoantennas and allow enhancing light emission inherently without additional devices. Moreover, perovskite enables tuning of emission spectra throughout the visible range by varying the composition of the material. This makes the new nanoparticles a promising platform for creating compact optoelectronic devices such as optical chips, light-emitting diodes, or sensors. The results were published in Nano Letters. (2018-02-20)

Why polymer solar cells deserve their place in the sun
Organic polymer solar cells show potential to provide solar power to remote microwatt sensors, wearable technology and the Wi-Fi-connected appliances constituting the 'internet of things.' While PSCs cannot match the durability or efficiency of inorganic solar cells, the potential to mass-produce nontoxic, disposable solar panels using roll-to-roll production makes them attractive for additional applications. In this week's Journal of Renewable and Sustainable Energy, researchers review the latest advances and remaining challenges in PSC technology. (2018-02-20)

Computers aid discovery of new, inexpensive material to make LEDs with high color quality
Computers have helped researchers develop a new phosphor that can make LEDs cheaper and render colors more accurately. Researchers predicted the new phosphor using supercomputers and data mining algorithms, then developed a simple recipe to make it in the lab. Unlike many phosphors, this one is made of inexpensive, earth-abundant elements and can easily be made using industrial methods. As computers predicted, the new phosphor performed well in tests and in LED prototypes. (2018-02-19)

Autonomous vehicles improve traffic flow
Improvements in traffic flow and fuel consumption are boosted when even a few autonomous vehicles are immersed in bulk traffic, according to research by Rutgers University-Camden mathematics scholar Benedetto Piccoli. (2018-02-19)

Phase-transition cubic gallium nitride doubles ultraviolet emission efficiency
The Innovative COmpound semiconductoR Laboratory team led by Professor Can Bayram, of the Department of Electrical and Computer Engineering at the University of Illinois at Urbana-Champaign, has published a well-received paper titled 'High internal quantum efficiency ultraviolet emission from phase-transition cubic GaN integrated on nanopatterned Si(100).' (2018-02-19)

The new bioenergy research center: building on ten years of success
The Great Lakes Bioenergy Research Center (GLBRC), led by the University of Wisconsin-Madison, recently embarked on a new mission: to develop sustainable alternatives to transportation fuels and products currently derived from petroleum. (2018-02-18)

Maximizing the environmental benefits of autonomous vehicles
The added weight, electricity demand and aerodynamic drag of the sensors and computers used in autonomous vehicles are significant contributors to their lifetime energy use and greenhouse gas emissions, according to a new study. (2018-02-15)

Gene taxi with turbo drive
Scientists at the German Primate Center improve DNA transfer in gene therapy. (2018-02-15)

Turning background room temperature heat into energy
University of Tsukuba-based researchers developed a way to recover environmental heat with a new type of thin-film thermoelectric cell, based on two different materials that show changes in their redox potential on cycling of temperature. (2018-02-14)

More than a well-balanced breakfast: Scientists use egg whites for clean energy production
Eggs may soon fuel more than people in the morning. Researchers from the Osaka City University in Japan have developed a way to potentially use egg whites as a substrate to produce a carbon-free fuel. (2018-02-14)

Powerful LED-based train headlight optimized for energy savings
Researchers have designed a new LED-based train headlight that uses a tenth of the energy required for headlights using conventional light sources. If operated 8 hours every day, the electricity savings of the new design would reduce emissions of the greenhouse gas carbon dioxide by about 152 kilograms per year. (2018-02-13)

Researchers discover new lead-free perovskite material for solar cells
Perovskite solar cells are a promising new low-cost photovoltaic technology, but most contain toxic lead. A team led by Brown researchers has introduced solar cells with a new titanium-perovskite material that gets the lead out. (2018-02-13)

Lithuanian researchers: Wastewater treatment plants could generate electricity
Researchers of Kaunas University of Technology (KTU), Lithuania are working on improving the efficiency of microbial fuel cells (MFC) by using modified graphite felt. Primary results show that the new MFC can generate 20 percent higher voltage than usual cells. (2018-02-12)

New fuel cell demonstrates exceptional power density and stability
By combining a high-activity cathode with a new composition of matter, fuel cell operates at 500-degrees Celsius -- a commercialization sweet spot. (2018-02-12)

The beneficial aspects of mindfulness for students of computer engineering
Subjected to the same practice exercise, the group of students that participated in mindfulness sessions obtained better results than those that did not take part in this activity. (2018-02-08)

Highly efficient ammonia synthesis catalyst developed
Researchers at Tokyo Institute of Technology (Tokyo Tech) have discovered that a catalyst of calcium amide[1] with a small amount of added barium (Ba-Ca(NH2)2) with ruthenium nanoparticles immobilized onto it can synthesize ammonia at an efficiency 100 times greater than that of conventional ruthenium catalysts at low temperatures below 300ºC. The performance of this catalyst is also several times higher when compared to iron catalysts currently being used industrially. (2018-02-07)

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