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Category: sustainability – Page 390

Fusion reactor technologies are well-positioned to contribute to our future power needs in a safe and sustainable manner. Numerical models can provide researchers with information on the behavior of the fusion plasma, as well as valuable insight on the effectiveness of reactor design and operation. However, to model the large number of plasma interactions requires a number of specialized models that are not fast enough to provide data on reactor design and operation.

Aaron Ho from the Science and Technology of Nuclear Fusion group in the department of Applied Physics at Eindhoven University of Technology has explored the use of machine learning approaches to speed up the numerical simulation of core plasma turbulent transport. Ho defended his thesis on March 17th.

The ultimate goal of research on fusion reactors is to achieve a net power gain in an economically viable manner. To reach this goal, large intricate devices have been constructed, but as these devices become more complex, it becomes increasingly important to adopt a predict-first approach regarding its operation. This reduces operational inefficiencies and protects the device from severe damage.

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For the uninitiated, “Jurassic Park” and “Jurassic World” make up a five-movie franchise — with a sixth in the works — all based on Michael Crichton’s hit novel about how bad of an idea it was to open a place like Jurassic Park. Leveraging recent advances in genetic research to create entirely new creatures is certainly an enticing idea, though there’s a big difference between something potentially being feasible and actually being a good idea.

But it’s not all fun and games when you’re playing god and creating new dinosaurs. Hodak later added that de-extinction could be a valuable tool for increasing biodiversity, perhaps because we find ourselves in the midst of an era of mass extinction.

“Biodiversity (antifragility) is definitely valuable; conservation is important and makes sense,” Hodak tweeted minutes later. “But why do we stop there? Why don’t we more intentionally try to generate novel diversity?”

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30 Pieces of silver for the masses.

The National Association for the Advancement of Colored People (NAACP) just published a report titled Fossil Fuel Foolery, which identified 10 tactics that the fossil fuel industry used as excuses for not accepting accountability for its impacts on the environment and human health. DesmogBlog noted that the industry used a long list of deceptive tactics that concealed environmental destruction harming Black, Indigenous, and People of Color (BIPOC) as well as low-income communities. Not surprising — the fossil fuel industry only cares about money, and if the planet and human health stand in the way of that, so be it.

The article gave a snapshot of the report findings, and one of the most disturbing things I took notice of was the common tactic that the NAACP described as “co-opt community leaders and organizations and misrepresent the interests and opinions of communities,” sometimes with financial support, to “neutralize or weaken public opposition.”

In short, fossil fuel companies and utilities pour donations on churches, nonprofits, and advocacy organizations to pretty much secure the local community buy-in on projects that generate pollution. The article said it plainly: “to stifle the push towards renewable energy.” And that also includes misrepresenting the community through one or two hired hands.

Continue reading “The Fossil Fuel Industry Used Deception To Conceal Damage To BIPOC — NAACP Report” | >

European automaker Renault debuted its new cheap electric cars, the Kwid series, in India for a little over $6000 USD. The incredibly low price has left many consumers wondering why certain counties have access to cheap EV cars, while buyers in Europe and the United States are expected to pay more than quadruple that price for similar vehicles. It turns out there is a conspiracy and Europeans and North Americans who want electric cars are getting gouged by automakers, and it all has to do with gaining access to new markets.

The Kwid specifications are nearly identical to a Dacia, also a Renault brand. The difference: a European Dacia is double the price of an Indian Kwid. Meanwhile, the U.S. market misses entirely on either of these vehicles. The only electric cars available in America are dominated by premium brands and high price tags, making them unaffordable for most.

Cheap electric cars are available. The question is, why are Americans and Europeans being ripped off by electric vehicle manufacturers?

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Crystalline silicon (c-Si) solar cells are among the most promising solar technologies on the market. These solar cells have numerous advantageous properties, including a nearly optimum bandgap, high efficiency and stability. Notably, they can also be fabricated using raw materials that are widely available and easy to attain.

In recent years, many companies and engineers specifically focused their research efforts on Si heterojunction (SHJ) . These solar cells, which consist of amorphous silicon layers deposited on crystalline silicon surfaces, have been found to achieve remarkable power conversion efficiencies (PCE).

Researchers at Beijing University of Technology, the Hanergy Chengdu Research and Development Center, and Jiangsu University in China recently carried out a study aimed at closely examining the structure of the c-Si/a-Si:H in high-efficiency SHJ solar cells. Their paper, published in Nature Energy, offers valuable insight that could help to improve the performance of SHJ solar cells further, by allowing engineers greater control over the c-Si/a-Si:H interface.

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According to the CEO of CIAM Mikhail Gordin, this is one of the most important projects in modern aviation. The use of a hybrid power plant based on the high-temperature superconducting platform, or HTSP, is designed to solve a number of technological issues that air transport is already facing, he said.

“This is what was done with the Fund of Advanced Studies – an electric airplane based on superconductivity principles,” Borisov said. The electric motor is part of the hybrid powertrain demonstrator that Russia’s Central Institute of Aviation Motors (CIAM) is developing.

An innovative electric motor based on high-temperature superconductors with a capacity of 500 kW (679 HP) was created by materials specialist Superox.

Trials of a promising superconductive aircraft electric motor started on February 5. A special flying laboratory has been created on the basis of the Yak-40 aircraft.

Continue reading “Russia to debut world’s first electric plane at MAKS 2021 airshow” | >

Turntide’s basic innovation is a software-controlled motor, or switch reluctance motor, that uses precise pulses of energy instead of a constant flow of electricity.

Sometimes the smallest innovations can have the biggest impacts on the world’s efforts to stop global climate change. Arguably, one of the biggest contributors in the fight against climate change to date has been the switch to the humble LED light, which has slashed hundreds of millions of tons of carbon dioxide emissions simply by reducing energy consumption in buildings.

And now firms backed by Robert Downey Jr. and Bill Gates are joining investors like Amazon and iPod inventor Tony Fadell to pour money into a company called Turntide Technologies that believes it has the next great innovation in the world’s efforts to slow global climate change — a better electric motor.

It’s not as flashy as an arc reactor, but like light bulbs, motors are a ubiquitous and wholly unglamorous technology that have been operating basically the same way since the nineteenth century. And, like the light bulb, they’re due for an upgrade.

Continue reading “Firms backed by Robert Downey Jr. and Bill Gates have funded an electric motor company that slashes energy consumption” | >

Global battery recycling industries are a new beginning for old energy storage.

When your kid looks at you with those big, innocent eyeballs and asks, “Where do lithium ion electric car batteries go when they die?” Without hesitation—because kids that age still believe you know everything—you read them this article:

Mighty Volkswagen—the carmaker that certainly looks like it is going to lead the world in the production of electric cars someday—now looks like it might lead the world in recycling electric car batteries, with the announcement that it has opened its first battery recycling plant in Salzgitter, Germany. OK, at a projected 3600 batteries recycled a year, maybe it won’t lead the world, but it will certainly lead battery recycling in Lower Saxony, between Hildesheim and Braunschweig. Globally speaking, all this battery recycling stuff is still being sorted out.

Continue reading “Where Electric Car Batteries Go When They Die” | >

https://youtube.com/watch?v=m3Hm0PGQb0I&feature=share

On March 28, 2021 NASA’s Mars Helicopter Ingenuity took vertical position (upright) under Perseverance Rover at Helipad. Helicopter release system unlocked yesterday. Today ingenuity made one more step to be deployed from Perseverance. As for now, NASA’s rover prepares to unlock Helicopter’s landing legs and put it on the Mars’s surface. Flight scheme is known. Solar panel charges Lithium-ion batteries, providing enough energy for one 90-second flight per Martian day (~350 Watts of average power during flight). Atmospheric weather relates to conditions such as air density at flight time, which affects the thrust that can be produced by the rotor and could result in adjustments of flight parameters. Temperature and wind profiles during the day are used to estimate the energy required to operate heaters. Winds at the time of the flight are tied to risks associated with takeoff, landing, and flying in high winds or very gusty conditions. All the things that a pilot on Earth would care about too!

Credit: nasa.gov, NASA/JPL-Caltech, NASA/JPL-Caltech/ASU

Source for NASA’s Mars Helicopter Ingenuity page: https://mars.nasa.gov/technology/helicopter/

#mars #helicopter #perseverance

Continue reading “Mars Helicopter Ingenuity takes vertical position under Perseverance Rover” | >