Posts with «environment» label

Bentley's Flying Spur Hybrid can travel 25 miles in EV mode

After announcing a shift to hybrid and fully electric cars by 2026, Bentley has begun showcasing the existing vehicles getting an eco-friendly makeover. Following the Bentayga Hybrid SUV, the spotlight is now on the more powerful Flying Spur sedan. 

Bentley's second plug-in hybrid features a 410 break horsepower (bhp) 2.9-liter V-6 with twin turbochargers, paired with a 134 bhp electric motor, for a combined 536 bhp. That's 95 bhp more than its SUV counterpart. While the luxury vehicle's 0-60mph acceleration time of 4.1 seconds and top speed of 177mph is just shy of the standard Flying Spur V8. 

Bentley

To improve emissions, the new engine uses fuel injectors and spark plugs centralized within each combustion chamber for "optimal spray patterns." While the twin-scroll turbos and catalytic converts are positioned within the V of the engine.

Bentley says the Flying Spur packs a 14.1kWh battery to offer an expected all-electric range of around 25 miles, pending certification. With many city centres requiring hybrids to switch to full EV mode, those figures will be critical. Some car makers like Fiat and BMW have even developed tech that can fully switch hybrids to all-electric drive in low emissions zones. 

Similar to that feature, Bentley says the hybrid manages battery usage by automatically shifting between three drive modes, including EV, allowing it to store up energy for when you reach the city. The sedan's combined petrol-electric range is more than 435 miles.

Visually, little separates the new plug-in hybrid from the rest of Flying Spur range, apart from a charging port on the left rear wing and an understated hybrid badge on the front. As you'd expect, this is a car for the uber-rich. Prices for the Flying Spur Hybrid are expected to start from an eye-watering £160,000 in its native UK, according to Auto Express, with sales beginning this summer and deliveries to kickstart before the end of the year.

Post-pandemic gas revival may threaten climate change targets

The pandemic recovery might not be all positive, at least not for the environment. Reutersreports that the International Energy Agency has warned that a post-pandemic resurgence in gas demand could threaten a goal of reaching net zero emissions worldwide by 2050. A projected 3.6 percent increase in gas use for 2021 could not only negate the 2020 decline but "even grow further," according to the IEA.

Demand is expected to taper off to 1.7 percent between 2022 and 2024, but that would still be too steep to stay on track, the IEA said.

This doesn't mean the Paris agreement and other goals are lost causes, however. The IEA believed that projects approved or underway before the pandemic could rein in those emissions. The agency also suggested that the gas industry could help by cutting down on methane leaks that contribute to climate change.

There are positive signs. Renewable energy is outpacing fossil fuels in some countries, and car manufacturers are increasingly committing to all-electric lineups in the next several years. Still, the IEA report lends a sense of urgency to those actions. Humanity might need to temper its eagerness to reestablish normalcy and refocus on green tech, at least if it wants to avoid replacing one global problem with another.

A nanofiber membrane could help solve the drinking water crisis

Korean scientists claim a new desalination technique makes sea water fit to drink in minutes. The researchers used a membrane distillation process that resulted in 99.9 percent salt rejection for one month. If commercialized, they say the solution could help alleviate the drinking water crisis exacerbated by climate change. More than 3 billion people worldwide are affected by water shortages, with the amount of fresh water available for each person plunging by a fifth over two decades, according to the UN.

The new study details a way to purify sea water using a a nanofiber membrane as a salt filter. While scientists have used membrane distillation in the past, they kept encountering a massive obstacle that slowed down the process. If the membrane became too wet, or flooded, it could no longer reject the salt. Needless to say, this was a time-draining process that forced scientists to either wait for the membrane to dry or come up with additional solutions, like using pressurized air to release trapped water from its pores.

To overcome this challenge, the Korean team turned to a nano technology known as electrospinning to create their three-dimensional membrane. In scientific terms, they used poly vinylidene fluoride-co-hexafluoropropylene as the core and silica aerogel mixed with a low concentration of the polymer as the sheath to produce a composite membrane with a superhydrophobic surface. In essence, this created a filter that had a higher surface roughness and lower thermal conductivity, allowing it to desalinate water for up to 30 days. The full report was published in the Journal of Membrane Science.

“The co-axial electrospun nanofibre membrane has strong potential for the treatment of seawater solutions without suffering from wetting issues and may be appropriate for real-scale membrane distillation applications,” Dr Yunchul Woo, a materials scientist at the Korea Institute of Civil Engineering and Building Technology, said. He added that the membrane may be appropriate for "pilot-scale and real-scale membrane distillation applications.” 

Currently, the main method of purifying sea water is through reverse osmosis at the roughly 20,000 desalination plants around the world. But these facilities require vast amounts of electricity to operate and also create concentrated brine as a waste product, which is typically dumped back in the sea. Therefore, it's no wonder scientists are exploring new solutions that aren't as counter-productive.

Honda will sell two electric SUVs in the US for the 2024 model year

Honda is revealing more about its first EVs for the US — and not surprisingly, they'll be decidedly larger than the Honda E. US sales chief Dave Gardner told the AP and others that Honda would sell two electric SUVS in the US for the 2024 model year. While further details were unsurprisingly scarce, one model would sell through the upscale Acura badge. Both would have previously hinted-at GM electric technology underneath, although Honda would supply the rest.

You'll hear more about the SUVs later this year, Gardner said. He added that there would be hybrid versions of popular models, although he didn't name them. The company currently sells two dedicated hybrids, the Clarity and Insight, as well as partly electrified versions of the Accord and CR-V.

We wouldn't expect these models to look too much like the SUV E:concept from September 2020. The production version of that vehicle was headed to China, and its two-door coupe design likely wouldn't get much traction in North America.

Honda doesn't have much choice. With President Biden expected to bring back tougher emissions standards and otherwise make a push for electric cars, Honda could be in trouble if it doesn't lower its emissions averages with more EVs and hybrids. There's also the matter of competition. With Ford, GM and other rivals planning to electrify large parts of their lineups in the years ahead, Honda risks being left behind in the US (and abroad) if it sticks with combustion engines.

A Peek at Hacking in an Energy Starved Future

In the future, we'll all live in "Live Cubes," tiny homes that restrict your energy and water use

Read more on MAKE

The post A Peek at Hacking in an Energy Starved Future appeared first on Make:.

A Peek at Hacking in an Energy Starved Future

In the future, we'll all live in "Live Cubes," tiny homes that restrict your energy and water use

Read more on MAKE

The post A Peek at Hacking in an Energy Starved Future appeared first on Make:.

Arduino Gives Your Toilet Options

With the severe drought going on in California with no end in sight, [TVMiller] decided he could put an Arduino and a toilet together to try and save at least a few gallons of water per day. The invention fills a toilet to the minimum level, saving around two gallons per day for the average “user”.

A typical toilet functions by using gravity and moving water to create a vacuum, sucking the waste down and out of the toilet. As long as there is nothing, uh, solid in the bowl, the toilet will be able to function on the reduced amount of water. The Arduino cuts the flow of water off before the toilet fills up the entire way.

In the event that anyone -ahem- needs the toilet’s full capacity, there is a button connected to the Arduino that fills the reservoir to capacity. [TVMiller] notes that if 1,825 hackers installed this device on their toilets, we could save a million gallons of water per year and be well on our way to saving the planet.

The project site is full of more information and puns for your viewing pleasure. We might suggest that the “2” button would be very easy to integrate with the toilet terror level indicator as well.

 


Filed under: home hacks
Hack a Day 09 Aug 09:00

Butlers, lunar rovers, snakes and airboats: the best of Carnegie Mellon's Robotics Institute

How was your week? We got to spend a couple of days trekking around the Carnegie Mellon campus in Pittsburgh, PA to check out some of the latest projects from the school's world renowned Robotics Institute -- a trip that culminated with the bi-annual induction ceremony from the CMU-sponsored Robot Hall of Fame. Given all the craziness of the past seven days, you might have missed some of the awesomeness, but fear not, we've got it all for you here in one handy place -- plus a couple of videos from the trip that we haven't shown you yet. Join us after the break to catch up.

Continue reading Butlers, lunar rovers, snakes and airboats: the best of Carnegie Mellon's Robotics Institute

Butlers, lunar rovers, snakes and airboats: the best of Carnegie Mellon's Robotics Institute originally appeared on Engadget on Sat, 27 Oct 2012 12:45:00 EST. Please see our terms for use of feeds.

Permalink | Email this | Comments

Environmental Monitoring With Arduino goes to the Gowanus Canal

Emily Gertz and Patrick Di Justo, authors of Environmental Monitoring With Arduino (available from Maker Shed and O’Reilly), wrote it to let me know that the book got used as a textbook in the recent NYC Water Hackathon. They’ve got the pictures to prove it, too!

Brooklyn, NY, March 25 — Patrick and I went to the Gowanus Canal to observe the testing of prototype water monitoring devices created at the weekend Water Hackathon. The Gowanus is one of Brooklyn’s more notorious Superfund sites.

We were excited to see that the device being developed by Leif Percifield and the citizen sensor group Don’t Flush Me is based on the water conductivity gadget we devised for Environmental Monitoring With Arduino.

We designed our gadget to test water samples in a controlled setting, such as sitting at your desk with the samples in flasks. They’ve adapted our water probe with little spade terminals, to be more durable in the field. Brilliant!

Slideshow: “Environmental Monitoring With Arduino” goes to the Gowanus Canal!


MAKE » Arduino 29 Mar 23:30