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Energy Efficiency

 



 

 

Energy Efficiency

June 2017
Exciting New Material Uses Solar Energy to Remove Man-Made Dye Pollutants From Water

Powders of tantalum nitride nanoparticles (left), tungsten oxide nanowires (centre) and the tantalum nitride/tungsten oxide composite (right).

A novel composite material has been developed by scientists in the Energy Safety Research Institute (ESRI) at Swansea University which shows promise as a catalyst for the degradation of environmentally-harmful synthetic dye pollutants, which are released at a rate of nearly 300,000 tonnes a year into the world's
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06/30/2017
Cellulosic Biofuels Can Benefit the Environment if Managed Correctly

'The climate benefit of cellulosic biofuels is actually much greater than was originally thought,' said Phil Robertson, University Distinguished Professor of Ecosystem Science at Michigan State University.

Could cellulosic biofuels - or liquid energy derived from grasses and wood - become a green fuel of the future, providing an environmentally sustainable way of meeting energy needs? In Science, researchers at the U.S. Department of Energy-funded Great Lakes Bioenergy Research Center say yes, but with
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Date:
06/30/2017
Table top plasma gets wind of solar turbulence

(a) A pump pulse creates the plasma on a solid while a probe pulse monitors the time evolution. The top panel in b shows the spatially randomized magnetic field in the plasma while the figure at the bottom shows the power spectrum of the magnetic field (magnetic energy density variation of with inverse of spatial length. The curve indicates magnetic turbulence in the plasma and mimics that from the solar wind.

Turbulent magnetic field dynamics that explain astrophysical phenomena like the evolution of stars could thus far be obtained only through observations via telescopes and satellites. Now a team of scientists from India and Portugal have recreated such magnetic turbulence on a table top in the lab, using a high
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06/30/2017

Scientists from Trinity College Dublin and AMBER, the Science Foundation Ireland-funded materials science research centre hosted in Trinity College Dublin, have created 'molecular cages' that can maximise the efficiency of converting molecules in chemical reactions, and that may in future also be used as sensors
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06/29/2017
Biofuel From Waste

Zeolite HBEA 150 significantly reduces temperature and energy requirements of a key step in the chemical process from organic waste to fuels.

Fuel from waste? It is possible. But hitherto, converting organic waste to fuel has not been economically viable. Excessively high temperatures and too much energy are required. Using a novel catalyst concept, researchers at the Technical University of Munich (TUM) have now managed to significantly reduce the
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06/29/2017
OSRAM OSTAR Projection Power LEDs Now Available from Mouser Electronics
Mouser Electronics, Inc. is now stocking the OSRAM OSTAR Projection Power LEDs from OSRAM Opto Semiconductors. These slim, high-luminance LEDs — based on advanced thin-film and UX:3 chip technologies — generate high luminous flux and radiant intensity previously unseen from a such a small surface area. The
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06/29/2017
Wireless Charging: An Integrated Approach is the Way Forward

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Figure 1: Wireless charging offers multiple benefits for users and device manufacturers

Data has been wireless for some time. Now consumers are demanding the ability to charge wirelessly and technology enablers are responding. In this technical article, Infineon will review the current state-of-art and compare the benefits of advanced wireless charging solutions using a totally integrated approach. Background Every
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06/29/2017
ABB’s Microgrid to Power Aruba and Support Transition to Renewable Energy

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ABB microgrid will integrate wind and solar energy to provide electricity to Caribbean island that was previously fully dependent on fossil fuels

ABB microgrid will integrate wind and solar energy to provide electricity to Caribbean island that was previously fully dependent on fossil fuels ABB will provide an advanced microgrid to WEB Aruba N.V., the main power utility serving the DutchCaribbean island of Aruba. ABB’s software,
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06/28/2017
With more electronics in the vehicles than ever before, we’re seeing the industry move from a basic set of electronics applications, with some automation for safety and road assistance, to high and full automation and complete comfort driving. To make this work, the transportation industry is capitalizing
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06/28/2017
How to Program Slew Rate?

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Figure 1: Typical battery voltage profile for “cold crank”

Slew rate is defined as rate of change of voltage or current in a period of time.  It is a frequently used term in operational amplifier specifications, but it also applicable when discussing programmable power supplies. When performing repetitive production testing on say a vehicle engine management
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06/28/2017
Synchronous High-Power Buck LED Controller Enables Efficient Automotive Exterior Lighting

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Figure 1. Advanced LED Lighting System

With their support for unique headlamp designs and their energy efficiency, high-power LEDs are becoming common components for automotive exterior lighting designs. Their brightness and precision control also have positive implications for safety. Taking a look at the electronics that support the LEDs, it’s
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Date:
06/28/2017
Emergency eCall â€

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Table 1. Supercapacitor Comparison vs. Capacitors & Batteries

Electronic systems must continue to remain operational, regardless of its external operating conditions. Said another way, any glitch in its power supply, whether momentary or seconds or even minutes, must be taken into account during its design process. The most common way of dealing with such circumstances
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06/28/2017
A Brief Introduction is in Order

Ally Winning, European Editor, Power Systems Design (PSD)

As the July/August edition of Power Systems Design Europe is my first issue as European editor, I’d like to take a second to tell you a little about myself. Since I graduated in electronics from university, I have written for a variety of magazines in the UK, as well as worked in-house at a global catalogue
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Date:
06/28/2017
Wireless Power Supply in the Smart Home of the Future

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Figure 1: The wireless power spots can be invisible, disappearing into the wall or floor. Easy monitoring and control of the power sources is enabled by communication with the info center and blends seamlessly into the smart home concept.

The Smart Home is one of the classic examples of the Internet of Things. While more and more networked items are becoming pervasive in our everyday lives, it is clear that the network will usually be wireless and mobile devices will often play a key role. Once you are rid of the data cable, the logical question
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06/28/2017
Ruthenium Rules for New Fuel Cells

Rice University scientists have fabricated a durable catalyst for high-performance fuel cells by attaching single ruthenium atoms to graphene.

Rice University scientists have fabricated a durable catalyst for high-performance fuel cells by attaching single ruthenium atoms to graphene. Catalysts that drive the oxygen reduction reaction that lets fuel cells turn chemical energy into electricity are usually made of platinum, which stands up
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06/28/2017
The hype around hydrogen fuel cells has died down, but scientists have continued to pursue new technologies that could enable such devices to gain a firmer foothold. Now one team has developed an electrocatalyst to replace the currently dominant, but expensive, one of choice -- platinum -- that could help boost
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06/28/2017
Under anaerobic conditions, certain bacteria can produce electricity. This behavior can be exploited in microbial fuel cells, with a special focus on wastewater treatment schemes. A weak point is the dissatisfactory power density of the microbial cells. An unconventional solution is now presented by Singaporean
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06/27/2017
DOE grant continues research into rare-earth elements extraction from coal
In 2016, a team of Penn State and U.S. Department of Energy researchers discovered a cost-effective and environmentally friendly way to extract rare earth elements (REEs) from coal and coal byproducts. Now, through a $1 million grant from DOE's Office of Fossil Energy, this research may be headed one-step closer
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06/26/2017
ECS and Toyota announce fellowship winners for projects in green energy technology

This is Dr. Ahmet Kusoglu, Lawrence Berkeley National Laboratory.

Pennington, NJ - The ECS Toyota Young Investigator Fellowship Selection Committee has chosen three winners who will receive $50,000 fellowship awards each for projects in green energy technology. The awardees are Dr. Ahmet Kusoglu, Lawrence Berkeley National Laboratory; Professor Julie Renner, Case Western Reserve
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06/26/2017
Santa Clara event parking includes electric vehicle charging stations
SANTA CLARA, Calif. -- Heading to an event at the Santa Clara Convention Center, Levi's Stadium, or California's Great America theme park and running low on your electric vehicle (EV) charge? There are no worries in Santa Clara as the city has one of the largest public multi-standard EV charging facilities in
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06/23/2017
Mouser Electronics and Grant Imahara launch  “Shaping Smarter Cities†video series
Mouser Electronics Inc. is teaming up with celebrity engineer Grant Imahara for the Shaping Smarter Cities project, the newest series in the successful
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06/23/2017
Multifunctional catalyst for poison-resistant hydrogen fuel cells

Reaction mechanism with a catalyst for fuel cells that use hydrogen and carbon monoxide as fuels.

Kyushu, Japan--Demand for eco-friendly fuel sources is increasing as the goal of weaning off our reliance on fossil fuels becomes commonly recognized. Hydrogen represents a possible sustainable fuel source when it is produced from water and burned with oxygen because only water is released as a by-product. The
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06/22/2017
As charge carriers, electrons and ions play the leading role in electrochemical energy storage devices and converters such as batteries and fuel cells. Proton conductivity is crucial for the latter; protons, i.e. positively charged hydrogen ions, are formed from hydrogen, which is used to power the fuel cell.
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06/22/2017
Contactor designed for operating voltages of up to 450 V DC
TDK Corporation presents the new HVC200A bipolar high-voltage contactor for the switching of high DC voltages and currents. It is designed for operating voltages of up to 450 V DC and a high continuous current of 200 A. Arcs that occur when disconnecting the DC load are quickly and safely extinguished
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06/22/2017
True green LEDs increase design-in flexibility, enable smaller end products
MALVERN, Pa. — The optoelectronics group of Vishay Intertechnology, Inc. introduced a new series of true green LEDs in a compact surface-mount 0603 ChipLED package. Measuring 1.6 mm by 0.8 mm with an ultra thin 0.55 mm profile, the VLMTG1400 series devices utilize the most recent ultrabright
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06/22/2017
Australian scientists have paved the way for carbon neutral fuel with the development of a new efficient catalyst that converts carbon dioxide (CO2) from the air into synthetic natural gas in a 'clean' process using solar energy. Undertaken by University of Adelaide in collaboration with CSIRO, the
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06/21/2017
Deceleration of runaway electrons paves the way for fusion power

Although the vacuum chamber in the British fusion reactor JET has a wall made of solid metal, it can melt if it gets hit by a beam of runaway electrons. It is these runaway elementary particles that doctoral students Linnea Hesslow and Ola Embréus have successfully identified and decelerated.

Fusion power has the potential to provide clean and safe energy that is free from carbon dioxide emissions. However, imitating the solar energy process is a difficult task to achieve. Two young plasma physicists at Chalmers University of Technology have now taken us one step closer to a functional fusion reactor.
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06/21/2017
Changing how solar power rolls

Smaller and lighter than traditional solar panels, the Roll-Out Solar Array, or ROSA, consists of a center wing made of a flexible material containing photovoltaic cells to convert light into electricity.

Traditional solar panels used to power satellites can be bulky with heavy panels folded together using mechanical hinges. An experiment that recently arrived at the International Space Station will test a new solar array design that rolls up to form a compact cylinder for launch with significantly less mass
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06/20/2017
WASHINGTON, D.C., June 20, 2017 -- Glow sticks, like those brandished by trick-or-treaters and partygoers, light up due to excited electrons of the molecules in the contained fluorescent dye. Electrons accept the exciting energy from a chemical reaction that results when an inner tube in the glow stick is cracked
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06/20/2017
Corn better used as food than biofuel, study finds

In a new study, Professor Kumar and graduate student Meredith Richardson find that using corn for biofuel comes with greater environmental costs and fewer benefits than using corn for food.

Corn is grown not only for food, it is also an important renewable energy source. Renewable biofuels can come with hidden economic and environmental issues, and the question of whether corn is better utilized as food or as a biofuel has persisted since ethanol came into use. For the first time, researchers at
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06/20/2017
New Traco Power - DC/DC Converter Series

TDN Series: 1-5 Watt DC/DC converters in most compact cubical package

These fully regulated
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Date:
06/20/2017
In accordance with an EU directive, conventional automotive diesel is supplemented with seven percent biodiesel. This proportion is set to rise to ten percent by 2020. However, this presents a significant technical challenge: biodiesel vaporises at higher temperatures, which can lead to problems with electronic
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06/19/2017
DOE Awards Six Research Contracts Totaling $258 Million to Boost US Exascale Technology
WASHINGTON, D.C. - U.S. Secretary of Energy Rick Perry announced that six leading U.S. technology companies will receive funding from the Department of Energy's Exascale Computing Project (ECP) as part of its new PathForward program, accelerating the research necessary to deploy the nation's first exascale supercomputers. The
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06/16/2017
TEV Project Teams up with Newcastle University to Create Highways of the Future
TEV project, an initiative to advance road infrastructure and the way people travel, has announced its innovative partnership with Newcastle University. Caroline Jones Carrick created TEV Project alongside her father, Will Jones, a battery expert and inventor, bringing their vision for a next-generation
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06/16/2017
ANN ARBOR--In what could be a major step forward for a new generation of solar cells called "concentrator photovoltaics," University of Michigan researchers have developed a new semiconductor alloy that can capture the near-infrared light located on the leading edge of the visible light spectrum. Easier
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06/15/2017
One of the biggest hurdles to the widespread use of hydrogen fuel is making hydrogen efficiently and cleanly. Now researchers report in the journal ACS Nano a new way to do just that. They incorporated a photocatalyst in a moisture-absorbing, semiconducting paint that can produce hydrogen from water in
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06/14/2017
New Technology Will Enable Properties to Share Solar Energy

Dr. Mahmoud Dhimish's research will mean low energy bills for consumers.

In the UK alone, some 1.5 million homes are equipped with solar panels, and it has been estimated that by 2020 the figure could soar to 10 million, with the prospect of lower energy bills for consumers and massive reductions in CO2 emissions. Now, a University of Huddersfield researcher is developing new technologies
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06/14/2017
Clean Energy Stored in Electric Vehicles to Power Buildings

The long-term battery aging test was set up at WMG's Energy Innovation Centre.

Energy stored in electric vehicles can be used to power large buildings, thanks to ground-breaking research from WMG, University of Warwick Researchers discover that by intelligently managing vehicle-to-grid technology, energy from idle vehicle batteries can be pumped back into the grid
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06/14/2017
Power Distribution, Inc. Targets Ohio and Kentucky Data Centers With new Greensource Cincinnati Partnership
Richmond, Virginia – Power Distribution, Inc. (PDI) announced its partnership with greensource Cincinnati. The new alliance underscores PDI’s commitment to Ohio and Kentucky-based mission-critical facilities by aligning the industry’s most innovative power distribution solutions with the
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06/13/2017
At present, the usage of alternative energy sources by major countries is: Spain, at an impressive 40.1%; Germany at 26.2%, Great Brittan at 19.4%, France at 16.1% (using hydro and nuclear for their entire remaining usage); and, finally, the US at 12.9% and Japan at 12.8%.   Why are some countries
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06/11/2017
Safety and thermal management

The creepage distance is the shortest path between two conductors along the surface of an isolator (typically a PCB)

When designing a switch-mode power supply (SMPS) operating losses and the ability to dissipate heat are critical selection criteria for MOSFETs. This is especially critical in the area of intelligent solid-state lighting systems, as the cramped environment and limited ventilation opportunities can significantly
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06/11/2017
IoT can use WPT

Wireless Power Transfer from a Primary Transmit Coil (Tx) to a Secondary Receive Coil (Rx), Including the LTC4120

Background & Introduction The term “Internet of Things” (IoT) refers to the ongoing trend to connect not only people and computers, but all sorts of “things” to the Internet and each other. By way of example, consider if you will applications
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06/10/2017
Smart Building energy disaggregation Submeter with LEM Split-core CT (ATO)

LEM ATO split core current transformers

Industrial companies, factories, multi-tenant commercial and residential building owners install submetering equipment for the purpose of real-time in-house metering. This allows for accurate allocation of costs, calculation of internal billing and enables the implementation of new energy efficiency
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06/10/2017
Power Film Capacitors Prove Effective in Renewable Energy and Smart Grid Technology

AVX’s six-terminal FFLC Series power film capacitor is ideal for DC filtering in wind turbines.

The cost of renewable energy technology has significantly decreased since the early 1990s due to continual developments in enabling technologies, and the relatively recent evolution of smart grid technologies has allowed renewable energy sources to legitimately contend with fossil fuels. The primary advantage
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06/10/2017
Chinese scientists have made good use of waste while finding an innovative solution to a technical problem by transforming rusty stainless steel mesh into electrodes with outstanding electrochemical properties that make them ideal for potassium-ion batteries. As reported in the journal Angewandte Chemie,
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06/09/2017
Researchers Compute their way Toward Cleaner Coal Plants

Using the HLRS Hazel Hen machine, RWTH Aachen University researchers were able to run a DNS simulation on a system of 45,000 particles at the Kolmogorov scale. To the team's knowledge, this is the direct-particle simulation for the largest number of particles at this scale to date, and serves as a benchmark for how other researchers studying this process can get more realistic simulation results.

When you think of turbulence, you might think of a bumpy plane ride. Turbulence, however, is far more ubiquitous to our lives than just air travel. Ocean waves, smoke from fire, even noise coming from jet engines or wind turbines are all related to turbulence. A team of researchers at RWTH Aachen
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06/09/2017
Finnish Demo Plant Produces Renewable Fuel From Carbon Dioxide Captured From the Air
The unique Soletair demo plant developed by VTT Technical Research Centre of Finland and Lappeenranta University of Technology (LUT) uses carbon dioxide to produce renewable fuels and chemicals. The pilot plant is coupled to LUT's solar power plant in Lappeenranta. The aim of the project is to demonstrate
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06/09/2017
Improving the Performance of Tin Electrocatalysts for CO2 Reduction

The (110) surface of rutile tin oxide with tin atoms marked in purple and oxygen atoms marked in red. Labels denote the catalytically active sites that were considered in this study. H and CO2 adsorbates prefer binding to the Obr site.

PITTSBURGH (June 8, 2017) ... The Journal of Materials Chemistry A, published by the Royal Society of Chemistry, included University of Pittsburgh researcher John Keith in its list of Emerging Investigators in 2017. The journal's themed issue highlighted "rising stars" of materials chemistry
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06/08/2017
Scientists from the University of Geneva are using the rules of genetics to better understand how to incorporate wind and solar power into the current electrical grid to produce a renewable power system. The researchers published their study in IEEE/CAA Journal of Automatica Sinica (JAS), a joint publication
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06/07/2017
Wind is powerful, but it doesn't always blow where and when it's needed. To make it more reliable and widely available, scientists have developed a two-prong approach to ensure wind-generated power doesn't die down as a renewable resource. The collaborative team includes scientists from the University
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06/06/2017
Power system design in the age of mobile devices, and especially wearable devices, is more challenging than it has ever been.  The end users of these devices want them to continue to get smaller, lighter and cheaper, while at the same time having bigger screens and longer battery life.  These opposing
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06/05/2017
Chemical 'Dance' of Cobalt Catalysis Could Pave way to Solar Fuels

Argonne chemists Dugan Hayes, Lin Chen, and Ryan Hadt have identified a rapid electronic process that could aid the water-splitting reaction in cobalt-containing catalysts. Cobalt catalysts are relatively inexpensive and could replace more expensive precious metal catalysts in the production of clean energy, most notably solar fuels.

By splitting a water molecule into two atoms of hydrogen and one of oxygen, scientists can use the boundless energy of the sun to make a clean fuel. In a new study from the U.S. Department of Energy's (DOE) Argonne National Laboratory and Harvard University, scientists have for the first time been able to see
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06/05/2017
  It is with great pleasure that we are announcing the appointment of Ally Winning as European Editor, PSD.
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06/03/2017
Ultra-Stable Perovskite Solar Cell Remains Stable for More Than a Year

This is a schematic representation of the findings of this study.

Perovskite solar cells promise cheaper and efficient solar energy, with enormous potential for commercialization. But even though they have been shown to achieve over 22% power-conversion efficiency, their operational stability still fails market requirements. Despite a number of proposed solutions in fabrication
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06/01/2017
Recently, solar steam and vapor generation is attracting a lot of attention with promising prospect in desalination, sterilization and chemical purification. Tremendous progress has been achieved as absorber designs (PNAS, 110, 11677-11681 (2013), Nature Comm. 6, 10103, (2015), Nature Photonics,
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06/01/2017
We tend to focus on the efficiency and aesthetics of rooftop solar panels, but as it turns out, placing giant, potentially electrified devices on top of your home impedes a very specific
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Date:
06/01/2017
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