Posts belonging to Category green power



Budweiser Orders 40 Tesla Electric Trucks

The list of companies placing orders for Tesla Semi electric trucks keeps growing weeks after the unveiling event last month. Now Anheuser-Busch, the brewer behind Budweiser, announced that it ordered 40 Tesla Semi trucks. Last week, DHL confirmed an order of 10 trucks – bringing the tally to just over 200 Tesla Semi trucks. The brewer says that it will include the electric trucks in its distribution network as part of its commitment to reduce its operational carbon footprint by 30 percent by 2025. Considering the size of their distribution network, they say that it would be the equivalent of removing nearly 500,000 cars from the road globally each year.

At Anheuser-Busch, we are constantly seeking new ways to make our supply chain more sustainable, efficient, and innovative. This investment in Tesla semi-trucks helps us achieve these goals while improving road safety and lowering our environmental impact,” commented James Sembrot, Senior Director of Logistics Strategy.

Tesla Semi is actually only one part of Anheuser-Busch’s effort to modernize its fleet. They also confirmed orders from Nikola Motors for their battery/fuel cell hydrogen trucks and Uber’s Otto autonomous trucks.

Last year, Uber’s Otto completed its first shipment by self-driving truck with an autonomous beer run with Budweiser.

Source: https://electrek.co/

3D-Printed Plastic Objects Connect To The Internet Without Any Electronics

Researchers from the University of Washington (UW) have developed 3D-printed plastic objects that can connect to the internet without any electronics or batteries. The researchers found a way to 3D-print plastic objects that can absorb or reflect ambient WiFi signals and send data wirelessly to any WiFi receiver like a smartphone or router.

Possible use cases include an attachment for laundry detergent that can sense when soap is running low, or a water sensor that notifies your smartphone when there is a leak.

As the UW explains in its news release, the researchers “replaced some functions normally performed by electrical components with mechanical motion activated by springs, gears, switches and other parts that can be 3-D printed — borrowing from principles that allow battery-free watches to keep time.” The scientists found that those mechanical motions can trigger gears and springs that connect to an antenna, all within the object.
The team opens new approach: “Can objects made of plastic materials be connected to smartphones and other Wi-Fi devices, without the need for batteries or electronics? A positive answer would enable a rich ecosystem of ‘talking objects3D printed with commodity plastic filaments that have the ability to sense and interact with their surroundings. Imagine plastic sliders or knobs that can enable rich physical interaction by dynamically sending information to a nearby Wi-Fi receiver to control music volume and lights in a room. This can also transform inventory management where for instance a plastic detergent bottle can self-monitor usage and re-order supplies via a nearby Wi-Fi device.
Such a capability democratizes the vision of ubiquitous connectivity by enabling designers to download and use our computational modules, without requiring the engineering expertise to integrate radio chips and other electronics in their physical creations. Further, as the commoditization of 3D printers continues, such a communication capability opens up the potential for individuals to print highly customized wireless sensors, widgets and objects that are tailored to their individual needs and connected to the Internet ecosystem
.”

Source: http://printedwifi.cs.washington.edu/
https://www.geekwire.com/

How To Remove Air Pollution Inside Cars

You might think sitting in your car with your windows closed keeps you safe from air pollution. The makers of a new pollution-busting filter say you’d be wrong.

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When you’re in your car you’re directly in the lanes of traffic and you’re actually taking air into the car. That’s coming from the exhaust of the cars in front of you. This means that there are greatly elevated levels of air pollution inside of a vehicle. This is both for nitrogen dioxide and for particulate matter“,  says Matthew Johnson,  Professor of Chemistry at the University of Copenhagen (Denmark).

Toxic air pollution passes through air inlets inside cars. Emissions from diesel vehicles are worst. The team from University of Copenhagen and start-up Airlabs has created Airbubbl, which contains two filters.
We have a chemical filter that’s removing nitrogen dioxide and ozone and odour from the air stream. We also have a high performance particle filter that’s removing soot and road dust and brake dust and these other components. We combine that inside this case. This plugs into the cigarette lighter. We have some quiet fans at the two ends of the device and we’ve used computational fluid dynamics in order to direct the airflow towards the passengers,” explains Johnson.
Independent tests in London saw nitrogen dioxide concentrations inside cars fall by 95 percent in 10 minutes. The Airbubbl is lightweight and easily attachable. A Kickstarter campaign has been launched to market the device.

Source: https://www.reuters.com/

Crowdfunding: https://www.kickstarter.com/

Glass Blocks Generate Electricity Using Solar Energy

Buildings consume more than forty percent of global electricity and reportedly cause at least a third of carbon emissions. Scientists want to cut this drastically – and create a net-zero energy future for new buildings. Build Solar want to help. The firm has created a glass brick containing small solar cells.

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On top of this we have placed in some intelligent optics which are able to focus the incoming sunlight onto these solar cells almost throughout the day. When we do that we are able to generate a higher amount of electrical output from each solar cell that we are using,” says Dr Hasan Baig, founder of Build Solar.
As well as converting the sun’s power to electricity, the bricks have other abilities.
The product is aligned to provide three different things, including electricity, daylighting, and thermal insulation which is generally required by any kind of construction product. More importantly it is aesthetic in its look, so it fits in very well within the building architecture,” adds Dr Baig.
Using Building Integrated Photovoltaics, the technology would be used in addition to existing solar roof panels. The University of Exeter spin-off is fine-tuning the design, which works in many colours. The company says the product could be market ready by the end of next year.

Source: https://www.buildsolar.co.uk/

New Quantum Computer Uses 10,000 Times Less Power

Japan has unveiled its first quantum computer prototype, amid a global race to build ever-more powerful machines with faster speeds and larger brute force that are key towards realising the full potential of artificial intelligence. Japan’s machine can theoretically make complex calculations 100 times faster than even a conventional supercomputer, but use just 1 kilowatt of power – about what is required by a large microwave oven – for every 10,000 kilowatts consumed by a supercomputer. Launched recently, the creators – the National Institute of Informatics, telecom giant NTT and the University of Tokyo – said they are building a cloud system to house their “quantum neural network” technology.

In a bid to spur further innovation, this will be made available for free to the public and fellow researchers for trials at https://qnncloud.com
The creators, who aim to commercialise their system by March 2020, touted its vast potential to help ease massive urban traffic congestion, connect tens of thousands of smartphones to different base stations for optimal use in a crowded area, and even develop innovative new drugs by finding the right combination of chemical compounds.

Quantum computers differ from conventional supercomputers in that they rely on theoretical particle physics and run on subatomic particles such as electrons in sub-zero temperatures. Most quantum computers, for this reason, destabilise easily and are error-prone, thereby limiting their functions.

We will seek to further improve the prototype so that the quantum computer can tackle problems with near-infinite combinations that are difficult to solve, even by modern computers at high speed,” said Stanford University Professor Emeritus Yoshihisa Yamamoto, who is heading the project.
Japan’s prototype taps into a 1km-long optical fibre cable packed with photons, and exploits the properties of light to make super-quick calculations. Its researchers said they deemed the prototype ready for public use, after tests showed that it was capable of operating stably around the clock at room temperature.

Source: http://www.straitstimes.com/

How To Use Computers Heat To Generate Electricity

Electronic devices such as computers generate heat that mostly goes to waste. Physicists at Bielefeld University (Germany) have found a way to use this energy: They apply the heat to generate magnetic signals known as ‘spin currents’. In future, these signals could replace some of the electrical current in electronic components. In a new study, the physicists tested which materials can generate this spin current most effectively from heat. The research was carried out in cooperation with colleagues from the University of Greifswald, Gießen University, and the Leibniz Institute for Solid State and Materials Research in Dresden.

The Bielefeld physicists are working on the basic principles for making data processing more effective and energy-efficient in the young field of ‘spin caloritronics’. They are members of the ‘Thin Films & Physics of Nanostructures’ research group headed by Professor Dr. Günter Reiss. Their new study determines the strength of the spin current for various combinations of thin films.

A spin current is produced by differences in temperature between two ends of an electronic component. These components are extremely small and only one millionth of a millimetre thick. Because they are composed of magnetic materials such as iron, cobalt, or nickel, they are called magnetic nanostructures.

The physicists take two such nanofilms and place a layer of metal oxide between them that is only a few atoms thick. They heat up one of the external films – for example, with a hot nanowire or a focused laser. Electrons with a specific spin orientation then pass through the metal oxide. This produces the spin current. A spin can be conceived as electrons spinning on their own axes – either clockwise or anti-clockwise.

Their findings have been  published  in the research journal ‘Nature Communications’.

Source: https://ekvv.uni-bielefeld.de/

Tesla Electric Truck Travels 500 Miles (805 km) On A Single Charge

The main course was expected: a pair of sleek silver Tesla semi-trucks that get 500 miles per charge, go from zero to 60 mph in five seconds and — if the hype is to be believed — promise to single-handedly transform the commercial trucking industry. But dessert was a surprise: A bright red prototype of the newest Tesla Roadster, a revamped version of the company’s debut vehicle that can travel from Los Angeles to San Francisco and back on a single charge and go from zero to 60 mph in under two seconds. If true, that would make the $200,000 sports car the fastest production car ever made.

On Thursday night, Tesla chief executive Elon Musk delivered both dishes to a packed crowd at the company’s design studio in Hawthorne, Calif.

What does it feel like to drive this truck?” Musk asked the audience, shortly after his latest creations rolled onto the stage. “It’s amazing! It’s smooth, just like driving a Tesla.” “It’s unlike any truck that you’ve ever driven,” he added, noting that Tesla’s big rig puts the driver at the center of the vehicle like a race car, but surrounded with touchscreen displays like those found in the Model 3. “I can drive this thing and I have no idea how to drive a semi.”

Range anxiety has always been a key concern for anyone who is weighing the purchase of an electric vehicle. Musk sought to reassure potential buyers that the company’s big rigs can match — and surpass — the performance of a diesel engine, which he referred to as “economic suicide.” Musk did not reveal the truck’s exact price, but argued that a diesel truck would be 20 cents more expensive per mile than Tesla’s electric counterpart, which will be available for purchase in 2019.

Source: https://www.washingtonpost.com/

Breathing in Delhi air equivalent to smoking 44 cigarettes a day

It was early on the morning when residents in the Indian capital of Delhi first began to notice the thick white haze that had descended across the city. Initially viewed as a mild irritant, by mid-week its debilitating effects were evident to all, as the city struggled to adapt to the new eerie, martian-like conditions brought about by the pollution.

The World Health Organization considers anything above 25 to be unsafe. That measure is based on the concentration of fine particulate matter, or PM2.5, per cubic meter. The microscopic particles, which are smaller than 2.5 micrometers in diameter, are considered particularly harmful because they are small enough to lodge deep into the lungs and pass into other organs, causing serious health risks.
With visibility severely reduced, trains have been canceled, planes delayed and cars have piled into each other, with multiple traffic accidents reported across the city. On the afternoon, city chiefs closed all public and private schools, requesting instead that the city’s tens of thousands of school-aged children remain indoors; they banned incoming trucks and halted civil construction projects; while they announced new plans to begin implementing a partial ban on private car use as of next week. But as the city woke up to a fourth straight day of heavy pollution, practical considerations were being overtaken by more serious concerns, with journalists and doctors warning residents of the long-term health implications.

Air quality readings in the Indian capital have reached frightening levels in recent days, at one point topping the 1,000 mark on the US embassy air quality index. Across the capital, doctors reported a surge in patients complaining of chest pain, breathlessness and burning eyes. “The number of patients have increased obviously,” said Deepak Rosha, a pulmonologist at Apollo Hospital, one of the largest private hospitals in Delhi. “I don’t think it’s ever been so bad in Delhi. I’m very angry that we’ve had to come to this.”
Breathing in air with a PM2.5 content of between 950 to 1,000 is considered roughly equivalent to smoking 44 cigarettes a day, according to the independent Berkeley Earth science research group.

Photovoltaics: Light Absorption Enhanced by Up to 200 Percent

Sunlight reflected by solar cells is lost as unused energy. The wings of the butterfly Pachliopta aristolochiae are drilled by nanostructures (nanoholes) that help absorbing light over a wide spectrum far better than smooth surfaces. Researchers of Karlsruhe Institute of Technology (KIT) in Germany, have now succeeded in transferring these nanostructures to solar cells and, thus, enhancing their light absorption rate by up to 200 percent.

 “The butterfly studied by us is very dark black. This signifies that it perfectly absorbs sunlight for optimum heat management. Even more fascinating than its appearance are the mechanisms that help reaching the high absorption. The optimization potential when transferring these structures to photovoltaics (PV) systems was found to be much higher than expected,” says Dr. Hendrik Hölscher of KIT’s Institute of Microstructure Technology (IMT).

 

The scientists of the team of Hendrik Hölscher and Radwanul H. Siddique (formerly KIT, now Caltech) reproduced the butterfly’s nanostructures in the silicon absorbing layer of a thin-film solar cell. Subsequent analysis of light absorption yielded promising results: Compared to a smooth surface, the absorption rate of perpendicular incident light increases by 97% and rises continuously until it reaches 207% at an angle of incidence of 50 degrees. “This is particularly interesting under European conditions. Frequently, we have diffuse light that hardly falls on solar cells at a vertical angle,” Hendrik Hölscher says. However, this does not automatically imply that efficiency of the complete PV system is enhanced by the same factor, says Guillaume Gomard of IMT. “Also other components play a role. Hence, the 200 percent are to be considered a theoretical limit for efficiency enhancement.

The scientists have reported their results in the journal Science Advances. (DOI: 10.1126/sciadv.1700232.)

Source: http://www.kit.edu/

AI-controlled Greenhouse Uses 90 Percent Less Water To Produce Salads

Californian startup  Iron Ox runs an indoor farm complete with a few hundred plants—and two robot farmers. Instead of using technology to grow genetically modified food, a former Google engineer partnered with one of his friends who had a PhD in robotics to open a technology-based farm where they plant, seed, and grow heads of lettuce.

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Iron Ox’s goal is to provide quality produce to everyone without a premium price. According to Natural Society the average head of lettuce travels 2,055 miles from farm to market, which is why fresh lettuce is often so expensive. Currently, Iron Ox only provides produce to restaurants and grocery stores in the Bay Area of California, which is why after a daily harvest, their products are hours fresh as opposed to shipped in. The company aims to open greenhouses near other major cities, guaranteeing same-day delivery from their trucks at a fraction of the price of the current supply chain.

So why the robots? Lettuce has always been a testing ground for farming innovation, from early greenhouses to closed aquaponic ecosystems. According to Iron Ox, their AI-controlled greenhouse uses 90 percent less water than traditional farms, and because of the technology, each head of lettuce receives intimate individualized attention that is not realistic with human labor. Iron Ox also says that because they grow their products indoors with no pesticides, they don’t have to worry about typical farming issues like stray animals eating their product.

Iron Ox has yet to launch a fully-functioning automated greenhouse, but hope to build their first by the end of 2017. However, Iron Ox is not the only company to experiment with robot farming. Spread, a sustainable farming organization, broke ground on their first techno-farm, which will be fully automated and operated by robots growing lettuce, in May. They have plans to expand to the Middle East next and then continue growing.

Does this mean the future of produce is automation? Not exactly. Agriculture is complex business, and not all produce can be greenhouse-grown as efficiently and effectively as lettuce. But it’s one more reason for farmers to be aware of how the robots are coming for us all.

Source: https://www.saveur.com/

Lab-grown Diamonds

This shiny, sparkly diamond was made inside a laboratory – but it has the same chemical makeup as its counterpart found deep inside the earth.

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All the composition is exactly the same. It is a real diamond. What we’ve done is we’ve just taken what’s happened in nature and just put it in a lab,” said  Kelly Good, Director of Marketing of Pure Grown Diamonds.

Essentially, all diamonds are carbon. And inside a laboratory, scientists are using a method called microwave plasma chemical vapour deposition to grow the stones from a diamond seed. They do it by creating a plasma ball made of hydrogen inside a growth chamber. Methane, which is a carbon source, is added. The carbon mix rains down on the diamond seeds, layer by layer, creating a large, rough diamond that is cut and polished. The process takes about 10 to 12 weeks. Marketers tout the lab-grown diamonds as an eco-friendly, conflict-free alternative to mined diamonds. “Our consumer is millennials, anybody who is getting engaged are really buying the lab-grown diamonds. They also like the fact of the environmental aspect of it. That it’s grown in a greenhouse. There is less soil being moved. We have a less carbon footprint,” explains Kelly Good.

While similar in appearance, there are differences. David Weinstein, Executive Director of the International  Gemological Institute (New York), comments: “I have a crystal, a diamond and I’m looking at it and I see a peridot crystal, a green peridot crystal, I know right away, this wasn’t created in a machine. So the inclusions can really be very telling as to what the origins of the material is. And that’s what our gemologists look for.”
While lab-grown gems have been around for decades, but it’s only recently that the science and technology have made it possible to grow large, gem quality stones. And according to a report by Morgan Stanley, the lab-grown diamond market could grow by about 15 percent by the year 2020.

Source: http://www.reuters.com/

How To Clean Nuclear Waste

Cleaning up radioactive waste is a dangerous job for a human. That’s why researchers at the University of  Manchester are developing robots that could do the job for us. Five years ago, in 2011, a major earthquake and tsunami devastated the east coast of Japan, leading to explosions and subsequent radiation release at the Fukushima Daiichi Nuclear Power Station. The fuel in three of the reactors is believed to have melted, causing a large amount of contaminated water on site.

This is still to be dealt with today – which isn’t too surprising, given that the clean-up of Chernobyl is still underway 30 years after the infamous nuclear accident took place. After the accident at Chernobyl, where an extremely high level of radiation was released, workers had to be sent into areas to which you wouldn’t want to send a human being. For the safety of others, they entered the plant to survey its condition, extinguish fires and manually operate equipment and machinery – all in an environment that endangered their lives. The challenge in dismantling the site at Fukushima is the residual radiation level. In the surrounding areas levels have fallen significantly; in some places (still off limits to former residents) radiation levels actually aren’t very different from natural background levels in certain other parts of the world. But in the reactor itself a person would receive a lethal dose of radiation almost instantly.

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At Fukushima, many of the instrumentation systems, such as reactor-water level and reactor pressure, were lost in the incident. This made assessing the integrity of the plant extremely difficult as you couldn’t send people to go and look at it,” explains Professor Barry Lennox, who, alongside Dr Simon Watson at The University of Manchester, is working to find another way of getting access to such dangerous places: by using robots. Professor Lennox and Dr Watson are part of a team working to adapt robots to help clean up Fukushima. They’re developing an underwater remote-operated vehicle – the AVEXIS – to help identify highly radioactive nuclear fuel that is believed to be dispersed underwater in the damaged reactor. The robot is already aiding decommissioning efforts at Sellafield, where it will swim around the ponds storing legacy waste to map and monitor the conditions within them.

Source: https://www.manchester.ac.uk/