Engineers Find Significant Environmental Impacts with Algae-Based Biofuel, Offer Alternative to Production
With many companies investing heavily in algae-based biofuels, researchers from the University of Virginia's Department of Civil and Environmental Engineering have found there are significant environmental hurdles to overcome before fuel production ramps up. They propose using wastewater as a solution to some of these challenges.
Researchers from the Biotechnology Foundation Laboratories at Thomas Jefferson University have identified a way to increase the oil in tobacco plant leaves, which may be the next step in using the plants for biofuel. Their paper was published online in Plant Biotechnology Journal.
Sandia National Laboratories scientists have developed tiny glitter-sized photovoltaic cells that could revolutionize the way solar energy is collected and used.
If you've seen an Internet ad for capacitor-type power factor correction devices, you might be led to believe that using one can save you money on your residential electricity bill. A new NIST report explains why the devices actually provide no savings by discussing the underlying physics.
PNAS study by USC geobiologists documents new behavior of metal-metabolizing bacteria, with implications for design of microbial fuel cells.
A Soon-to-be graduate of Western Illinois University is one of lead researchers in market research project to foster new Russian market possibilities for Illinois ethanol producers. Ethanol co-product DDGS (distiller's dried grains with solubles) can provide high-protein feed product for Russian livestock.
Titanium dioxide can be converted into a material that absorbs sunlight and greatly increase the efficiency of solar energy cells. Coated particle fuel fabricated at ORNL, in cooperation with INL, General Atomics, and the Babcock & Wilcox Company, has set a world record for advanced high temperature gas-cooled reactor fuel. Electronic devices of the future may benefit from a fundamental discovery that allows researchers to customize the electronic properties of complex materials.
Last year, the United States overtook Germany to become the largest producer of wind energy in the world. This capped a five year expansion of U.S. wind power during which capacity increased by about a third every year.
A recent study concluded that 50 million U.S. acres of cropland and pasture could be used for the production of perennial grasses, such as switchgrass, for biofuel feedstock. Economically viable production of a perennial grass monoculture from which substantial quantities of biomass are removed annually is expected to require nitrogen fertilizer.
In recent years, scientists have decoded the DNA of humans and a menagerie of creatures but none with genes as complex as a stalk of corn, the latest genome to be unraveled. A team of scientists led by The Genome Center at Washington University School of Medicine in St. Louis published the completed corn genome in the Nov. 20 journal Science, an accomplishment that will speed efforts to develop better crop varieties to meet the world's growing demands for food, livestock feed and fuel.
New scientific discoveries are moving society toward the era of "personalized solar energy," in which the focus of electricity production shifts from huge central generating stations to individuals in their own homes and communities. That's the topic of a report by an international expert on solar energy scheduled for the November 2 issue of ACS' Inorganic Chemistry...
Scientists in Washington, D.C. are reporting laboratory evidence supporting the possibility that some of Earth's oil and natural gas may have formed in a way much different than the traditional process described in science textbooks. Their study is scheduled for Nov./Dec. issue of ACS' Energy & Fuels, a bi-monthly publication. Anurag Sharma and colleagues note that the traditional process...
1) Fuel economy ratings for the new 2010 model year automobiles are posted at www.fueleconomy.gov, which ORNL maintains for the U.S. DOE and the U.S. EPA; 2) A team led by ORNL's Nina Balke has moved closer to developing more rugged memory and logic devices; 3) Heavy trucks are less heavy but just as safe and rugged because of steel rail frames; 4) A new approach to crunching massive volumes of data uses neural networks like an artificial brain.
Experts at Rensselaer Polytechnic Institute's Lighting Research Center (LRC) estimate that about half of the approximately 13 million streetlights in America have the opportunity to significantly reduce energy consumption by as much as 50 percent, translating to an annual savings of 1 billion kWh, and a reduction in power plant CO2 emissions of 546,000 tons per year.
Converting sunlight to electricity might no longer mean large panels of photovoltaic cells atop flat surfaces like roofs.
Technion scientists have created an environmentally friendly silicon-oxygen battery capable of supplying non-stop power for 1000s of hours. Used like batteries already in use today, they would be lightweight, have an unlimited shelf life, and have a high tolerance for both humid and extremely dry conditions.
Hydrogen fuel, with steam as its only byproduct, would be the ultimate clean, green fuel. But it has failed to deliver on this promise due to one enormous stumbling block: storage capacity. Now UMass Amherst chemical engineers propose a computational model showing carbon nanotubes offer a solution.
Scientists take an important step in converting methane gas to a liquid, giving the potential of making it more useful as a fuel and as a source for making other chemicals.
A University of Michigan survey released today shows widespread consumer interest in buying plug-in hybrid electric vehicles (PHEVs). But the cost of the cars is much more influential than environmental and other non-economic factors as a predictor of purchase probabilities.
A simplified model cell not only sheds light on the way certain real cells generate electric voltages, but also acts as a tiny battery that could offer a practical alternative to conventional solid-state energy-generating devices.
Project converts dairy wastes to energy, other products.
Small bits of metal may play a new role in solar power. Researchers are experimenting with polymer semiconductors that absorb the sun's energy and generate electricity. The goal: lighter, cheaper, and more-flexible solar cells.
A new ceramic material described in this week's issue of the journal Science could help expand the applications for solid oxide fuel cells - devices that generate electricity directly from a wide range of liquid or gaseous fuels without the need to separate hydrogen.
Worldwide, thousands of workers die every year from mining accidents, and instantaneous coal outbursts in underground mines are among the major killers. But although scientists have been investigating coal outbursts for more than 150 years, the precise mechanism is still unknown.
An unintended consequence of crop-based biofuels may be the loss of wildlife habitat, particularly that of the birds that call this country's grasslands home.