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Thermoelectric materials: recycling energy

March 31, 2011 5:50 am | News | Comments

Thermoelectric materials are a hot new technology that is now being studied intensively by researchers funded by the U.S. Department of Energy's Energy Frontier Research Centers. An Oak Ridge National Laboratory researcher is using neutron scattering and computer simulation to investigate the microscopic structure and dynamics of thermoelectric materials so that researchers can make them more efficient for new, energy-saving applications.

Two NETL-patented carbon capture sorbents are closer to commercialization

March 29, 2011 5:35 am | News | Comments

Two new patented sorbents used for carbon dioxide (CO 2 ) capture from coal-based power plants have moved closer to commercialization as a result of a licensing agreement between the National Energy Technology Laboratory and ADA Environmental Solutions.

Key plant traits yield more sugar for biofuels

March 29, 2011 5:24 am | News | Comments

New clues about plant structure are helping researchers from the Department of Energy’s BioEnergy Science Center narrow down a large collection of poplar tree candidates and identify winners for future use in biofuel production.

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New fluorescent OLEDs display greater efficiencies than believed possible

March 23, 2011 8:24 am | News | Comments

Univ. of Michigan engineering researchers have designed an efficient fluorescent blue OLED, or organic light emitting diode. Traditionally, the ceiling for the efficiency of fluorescent OLEDs was believed to be 5%. Now, the team has produced fluorescent OLEDs with close to 10% efficiency.

Neutron analysis yields insight into bacteria for solar energy

March 23, 2011 7:23 am | News | Comments

Structural studies of some of nature's most efficient light-harvesting systems are lighting the way for new generations of biologically inspired solar cell devices. Researchers from Washington Univ. in St. Louis and the Oak Ridge National Laboratory used small-angle neutron scattering to analyze the structure of chlorosomes in green photosynthetic bacteria.

U.S. spent-fuel storage sites are packed

March 23, 2011 7:22 am | by Jonathan Fahey and Ray Henry, The Associated Press | News | Comments

The nuclear crisis in Japan has laid bare an ever-growing problem for the United States — the enormous amounts of still-hot radioactive waste accumulating at commercial nuclear reactors in more than 30 states. A state-by-state study of numbers obtained by the Associated Press finds that the U.S. has almost 71,862 tons of radioactive waste, now stored at power-plant sites.

Researchers close in on technology for making renewable petroleum

March 23, 2011 7:09 am | News | Comments

Univ. of Minnesota researchers are a key step closer to making renewable petroleum fuels using bacteria, sunlight, and dioxide, a goal funded by a $2.2 million United States Department of Energy grant.

R & D 100 Award-winning technology helps find radiation from Japan

March 23, 2011 6:34 am | News | Comments

Last week, Pacific Northwest National Lab was the first to detect radioactive isotopes entering the continental United States. Though levels of the detected materials, xenon-133, were extremely low—less than one-millionth the daily dose of background radiation—the technology proved the sensitivity of two instruments originally developed to help enforce nuclear weapon testing bans. One of them won an R&D 100 Award in 1998.

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Battelle licenses Grid Friendly appliance controller

March 23, 2011 5:49 am | by Anne Haas | News | Comments

Start-up technology firm Encryptor of Texas has licensed a technology that will help soften the blow for utilities during times of peak demand on the grid by temporarily shifting when smart appliances use power. Invented by Pacific Northwest National Lab in 2008 with funding from Battelle and the Dept. of Energy, the device is intended to be marketed within the next two to three years.

Team develops portable power using hydrogen fuel pellets

March 22, 2011 5:56 am | News | Comments

Purdue Univ. researchers have collaborated with scientists at General Atomics to create safe and efficient pellets to power hydrogen fuel cells that can run an array of portable electronic devices.

Researchers make advances in rechargeable solid hydrogen fuel storage tanks

March 22, 2011 5:01 am | News | Comments

Researchers have revealed a new single-stage method for recharging the hydrogen storage compound ammonia borane. The breakthrough makes hydrogen a more attractive fuel for vehicles and other transportation modes.

Scientists lack complete answers on radiation risk

March 21, 2011 6:15 am | by The Associated Press | News | Comments

Long term, it is clear radiation can induce cancer. But researchers can't just count cancer cases after a disaster and declare radiation responsible. Just how much or how long an exposure is risky is not clear, which is why, 25 years after the Chernobyl accident, there is still controversy over its effects.

Vanadium redox battery upgrade

March 18, 2011 4:18 am | News | Comments

Though considered a promising large-scale energy storage device, the vanadium redox battery's use has been limited by its inability to work well in a wide range of temperatures. But new research by Pacific Northwest National Laboratory indicates that modifying the battery's electrolyte solution improves its performance.

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Risks from radiation low in Japan but panic high

March 17, 2011 6:55 am | by Joe McDonald and Margie Mason, Associated Press | News | Comments

Those who have been evacuated from the site are considered safe, as are the 39 million people who live in the greater Tokyo region. But panic continues, as supermarkets in nearby China have run out of staples such as salt, and Russians have rushed to buy seaweed and red wine, a measure Soviet authorities recommended after the Chernobyl explosion.

Engineering E. coli to produce record-setting amounts of alternative fuel

March 17, 2011 5:48 am | News | Comments

Researchers at UCLA's Henry Samueli School of Engineering and Applied Science have developed a way to produce normal butanol from bacteria at rates significantly higher than those achieved using current production methods.

Newly created optical knots offer potential power source

March 16, 2011 6:12 am | News | Comments

New York Univ. physicists have invented a new method to create extended and knotted optical traps in three dimensions. The method for producing these optical knots offers the potential to enable fusion energy as a practical power source.

MIT system gives view of energy inefficiency across large areas

March 16, 2011 5:01 am | by David L. Chandler, MIT News Office | News | Comments

Getting an energy audit of a home or a commercial building can be a time-consuming and labor-intensive process. But new techniques and technology developed by a team of MIT researchers have streamlined the process, allowing for scans of large groups of buildings and even entire cities.

Newly developed cathode material boosts battery performance

March 14, 2011 5:39 am | News | Comments

Fundamental advances in rechargeable battery technology disclosed by Wildcat Discovery Technologies could result in battery performance improvements of 25% to 65% or more in electric cars, portable electronics, military, medical devices, and other demanding applications.

Bioenergy crops could lower surface temperatures

March 11, 2011 5:03 am | News | Comments

Converting large swaths of farmland to perennial grasses for biofuels could lower regional surface temperatures, according to a recent Stanford study.

New technology could extend battery life for mobile devices

March 11, 2011 3:54 am | News | Comments

Technophiles who have been dreaming of mobile devices that run longer on lighter, slimmer batteries may soon find their wish has been granted. Univ. of Illinois engineers have developed a form of ultra-low-power digital memory that is faster and uses 100 times less energy than similar available memory.

Testing smart energy systems

March 9, 2011 5:36 am | News | Comments

The Fraunhofer Institute in Germany has built a test lab, the SmartEnergyLab, to investigate how to network various electrical household appliances and operate them remotely. With a co-generation plant and photovoltaic simulator, researchers can analyze almost energy management system for controlling power and heat.

Sandia seeds culture of nuclear energy safety and security

March 7, 2011 5:29 am | News | Comments

The Gulf Nuclear Energy Infrastructure Institute has recently opened in Abu Dhabi with mission of preparing Emirati nuclear professionals for the responsibility of handling potentially threatening materials. The institute, which is backed by experts from Sandia National Laboratories, will not train plant operators; instead it will train executives and policymakers in broad concepts.

PNNL report looks at promising electrochemical energy storage systems

March 7, 2011 4:58 am | News | Comments

Future batteries used by the energy grid to store power from the wind and sun must be reliable, durable, and safe, but affordability is really the key to widespread deployment, according to a new report from Pacific Northwest National Laboratory. The report is one of the most comprehensive reviews of electrochemical energy storage to date.

S-CO2 Brayton cycle turbines promise leap in thermal-to-electric conversion efficiency

March 4, 2011 3:37 am | News | Comments

Sandia National Laboratories researchers are moving into the demonstration phase of a gas turbine system for power generation, with the promise that thermal-to-electric conversion efficiency will be increased to as much as 50%.

Using nanotechnology to prolong machine and engine life

March 2, 2011 2:52 am | News | Comments

Guojun Liu has discovered a way to use nanotechnology to reduce friction in automobile engines and machines. The team prepared miniscule polymer particles that were dispersed in automobile engine base oils. When tested under metal surface contact conditions that simulated conditions found in automobile engines, these tiny particles were discovered to have an unprecedented friction reduction capability.

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