Advertisement
The Efficiency Zone
Subscribe to The Efficiency Zone
View Sample

FREE Email Newsletter

Antimony nanocrystals for batteries

March 19, 2014 10:26 am | by EurekAlert! | News | Comments

Researchers from ETH Zurich and Empa have succeeded for the first time to produce uniform antimony nanocrystals. Tested as components of laboratory batteries, these are able to store a large number of both lithium and sodium ions. These nanomaterials operate with high rate and may eventually be used as alternative anode materials in future high-energy-density batteries.

Stanford makes flexible carbon nanotube circuits more reliable and power efficient

March 17, 2014 4:15 pm | by EurekAlert! | News | Comments

Engineers would love to create flexible electronic devices, such as e-readers that could be folded to fit into a pocket. One approach they are trying involves designing circuits based on electronic fibers, known as carbon nanotubes (CNTs), instead of rigid silicon chips.

Potentially safer, greener alternative to BPA could come from papermaking waste

March 17, 2014 12:30 pm | by EurekAlert! | News | Comments

A waste product from making paper could yield a safer, greener alternative to the potentially harmful chemical BPA, now banned from baby bottles but still used in many plastics. Scientists made the BPA alternative from lignin, the compound that gives wood its strength, and they say it could be ready for the market within five years.

Advertisement

Harnessing everyday motion to power mobile devices

March 17, 2014 12:13 pm | by EurekAlert! | News | Comments

Imagine powering your cell phone by simply walking around your office or rubbing it with the palm of your hand. Rather than plugging it into the wall, you become the power source. Researchers at the 247th National Meeting & Exposition of the American Chemical Society (ACS), the world's largest scientific society, presented these commercial possibilities and a unique vision for green energy.

A battery that 'breathes' could power next-gen electric vehicles

March 17, 2014 11:53 am | by EurekAlert! | News | Comments

Sales of electric vehicles (EVs) nearly doubled in 2013, but most won't take you farther than 100 miles on one charge. To boost their range toward a tantalizing 300 miles or more, researchers are reporting new progress on a "breathing" battery that has the potential to one day replace the lithium-ion technology of today's EVs.

Scripps Florida scientists devise new, lower cost method to create more usable fuels

March 14, 2014 2:16 pm | by EurekAlert! | News | Comments

As the United States continues to lead the world in the production of natural gas, scientists from the Florida campus of The Scripps Research Institute (TSRI) have devised a new and more efficient method with the potential to convert the major components found in natural gas into useable fuels and chemicals—opening the door to cheaper, more abundant energy and materials with much lower emissions.

Scientists find new way to upgrade natural gas

March 14, 2014 10:36 am | by EurekAlert! | News | Comments

America's current energy boom may take a new direction thanks to the discovery of a new way to turn raw natural gas into upgraded liquid alcohol fuel. In the March 14 issue of Science magazine, chemists from Brigham Young University and The Scripps Research Institute detail a process that could reduce dependence on petroleum.

NREL aims to improve building energy performance with new web-based tool

March 12, 2014 5:02 pm | by EurekAlert! | News | Comments

The Energy Department’s National Renewable Energy Laboratory (NREL) has developed a web-based tool to help consumers better understand the energy performance of building-related products. The Technology Performance Exchange™ (TPEx™) is a portal that helps manufacturers and other organizations that measure and test products easily share performance data with product consumers.

Advertisement

UK and China agree £20 million low carbon innovation programm

March 10, 2014 8:51 am | by EurekAlert! | News | Comments

A new £20 million three-year programme that will support research to develop new low carbon manufacturing processes and technologies, low carbon cities and offshore renewables in the UK and China was agreed yesterday, Wednesday 5th March 2014.

Vertimass licenses ORNL biofuel-to-hydrocarbon conversion technology

March 7, 2014 11:06 am | by EurekAlert! | News | Comments

Vertimass LLC, a California-based start-up company, has licensed an Oak Ridge National Laboratory technology that directly converts ethanol into a hydrocarbon blend-stock for use in transportation fuels. The ORNL technology offers a new pathway to biomass-derived renewable fuels that can lower greenhouse gas emissions and decrease U.S. reliance on foreign sources of oil.   

Why is ZigBee green?

March 6, 2014 11:44 am | by Cees Links, CEO and Founder of GreenPeak, ZigBee Alliance Member | Blogs | Comments

One of the biggest challenges that consumers and service providers will have in the future is maintaining a wide range of sensor and control devices located throughout the smart home. For ease of use and installation, it makes much more sense to have these powered by either batteries or by energy harvesting technologies.

Europe rethinks renewable energy standards

March 5, 2014 12:14 pm | by Karl Stephan, Consulting Engineer, Texas State University, San Marcos | Blogs | Comments

For the past decade or more, as Al Gore and the majority of climate-change scientists have insisted that the world is speeding headlong toward an environmental catastrophe of epic proportions, European countries have adhered to stringent emission controls....

Novel quantum dot laser paves the way for lower-cost photonics

March 5, 2014 11:00 am | by EurekAlert! | News | Comments

With the explosive growth of bandwidth demand in telecommunications networks, experts are continually seeking new ways to transmit increasingly large amounts of data in the quickest and cheapest ways possible. Photonic devices—which convert light to electricity and vice versa—offer an energy-efficient alternative to traditional copper network links for information transmission.

Advertisement

Smart grid for electric vehicle fleet

March 5, 2014 9:42 am | by EurekAlert! | News | Comments

Being able to charge 30 electric cars at once requires ingenious energy management. Researchers are incorporating  renewables into the design of a smart grid for Germany’s largest charging station. The network of charging stations for EVs is becoming more tightly meshed.

Transparent, color solar cells fuse energy, beauty

March 5, 2014 9:08 am | by EurekAlert! | News | Comments

Colorful, see-through solar cells invented at the University of Michigan could one day be used to make stained-glass windows, decorations and even shades that turn the sun's energy into electricity. The cells, believed to be the first semi-transparent, colored photovoltaics, have the potential to vastly broaden the use of the energy source.

'Fore!' heads up, wide use of more flexible metallic glass coming your way

March 4, 2014 10:23 am | by EurekAlert! | News | Comments

University of Cincinnati researchers are reporting early results on a way to make solar-powered panels in lights, calculators and roofs lighter, less expensive, more flexible (therefore less breakable) and more efficient. Fei Yu, a University of Cincinnati doctoral student, will present new findings on boosting the power conversion efficiency of polymer solar cells on March 3, at the American Physical Society Meeting in Denver.

Multilayer ceramic transmitter produces a high output of 80 Db

February 28, 2014 3:44 pm | Transducers Direct | Product Releases | Comments

Transducers USA (Elk Grove Village, IL) has introduced their new piezo ceramic MLCT (Multilayer Ceramic Transmitter) series. Its unique simple acoustic multi-layer ceramic construction produces a high output of 80 Db with only 16V low driving voltage.

New, inexpensive production materials boost promise of hydrogen fuel

February 28, 2014 3:30 pm | by EurekAlert! | News | Comments

Generating electricity is not the only way to turn sunlight into energy we can use on demand.  In a study published last week in the journal Science, Choi and postdoctoral researcher Tae Woo Kim combined cheap, oxide-based materials to split water into hydrogen and oxygen gases using solar energy with a solar-to-hydrogen conversion efficiency of 1.7 percent, the highest reported for any oxide-based photoelectrode system.

Chinese partnership fuels NJIT's solar cell research

February 28, 2014 2:12 pm | by EurekAlert! | News | Comments

Earlier this month, NJIT formalized an agreement with Chinese partners that will advance the university's research on thin-film solar cells, an alternative energy technology with the potential to make buildings and other infrastructure substantially more energy-efficient.

UT part of $140 million White House advanced manufacturing initiative

February 28, 2014 1:54 pm | by EurekAlert! | News | Comments

The University of Tennessee, Knoxville, will be part of a national effort, announced today by President Barack Obama, which could lead to more fuel-efficient cars and decreased costs for ships and aircraft. Suresh Babu and a team of faculty will help lead UT's research effort in the $140 million Detroit-based institute....

Electric drive vehicles don’t reduce emissions

February 28, 2014 9:26 am | by Chris Fox, PD&D Managing Editor | Blogs | Comments

A study was recently released by North Carolina State University that provides evidence supporting the fact that electric drive vehicles (EDVs) have little impact on reducing emissions. As an engineering audience that knows efficiency when they see it, most PD&D readers will throw their hands in the air having known this for some time.

Class-D amplifiers keeps evolving

February 27, 2014 3:54 pm | by Jun Honda, Director Audio Systems Engineering, International Rectifier | International Rectifier | Articles | Comments

Class D is redefining the trade-offs in audio power amplifier design, simultaneously delivering smaller size and higher power density with better sound than Class AB audio systems. Class D also has the advantage of offering low distortion and more stable dynamic response....

Portable hydrogen fuel cell unit to provide green, sustainable power to Honolulu port

February 25, 2014 10:09 am | by EurekAlert! | News | Comments

Clean hydrogen power that's expected to lower emissions and reduce energy consumption will be coming to the Port of Honolulu in 2015 after the completion of a new fuel cell technology demonstration, one that could lead to a commercial technology for ports worldwide.

GaN on GaN LED achieves world-record setting wall-plug-efficiency

February 24, 2014 12:23 pm | Product Releases | Comments

Soraa (Fremont, CA) announced today the world’s most efficient LED, which it will integrate into the market’s first full-visible-spectrum, large-form-factor lamps. Soraa’s third generation (Gen3) GaN on GaN LED achieves world-record setting wall-plug-efficiency, outperforming the nearest competitor by 20% at normal operating conditions.

Will plug-in cars crash the electric grid?

February 21, 2014 2:24 pm | by EurekAlert! | News | Comments

Selecting a Chevy Volt, Tesla Model S, Nissan Leaf — or one of many other new models — shoppers in the United States bought more than 96,000 plug-in electric cars in 2013. That's a tiny slice of the auto market, but it's up eighty-four percent from the year before.

X
You may login with either your assigned username or your e-mail address.
The password field is case sensitive.
Loading