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Archive for the ‘sustainability’ category: Page 219

Sep 15, 2022

A new high-speed electric motor could help solve range woes of EVs

Posted by in categories: sustainability, transportation

This is also the fastest IPMSM built with commercialized lamination materials.

Researchers at the University of New South Wales Sydney have developed a new electric motor that can clock 100,000 revolutions per minute. The high power density achieved as a result of this new design could help reduce the weight of electric vehicles (EVs) and thereby increase their range, a university press release said.

EV makers around the world have been looking for ways to address the range anxiety of their battery-powered vehicles. One of the options is to increase the size of the battery pack, which also increases the weight of the vehicle, creating more problems to solve.

Sep 15, 2022

World’s first direct air electrolyzer makes hydrogen from humidity

Posted by in categories: chemistry, solar power, sustainability

Australian researchers have developed and tested a way to electrolyze hydrogen straight out of the air, anywhere on Earth, without requiring any other fresh water source. The Direct Air Electrolyzer (DAE) absorbs and converts atmospheric moisture – even down to a “bone-dry” 4% humidity.

Such a machine could be particularly relevant to a country like Australia, which has ambitions as a clean energy exporter, along with enormous solar energy potential – but also widespread drought conditions and limited access to clean water. Decoupling hydrogen production from the need for a water supply could allow green hydrogen to be produced more or less anywhere you can ship it out from – and since water scarcity and solar potential often go hand in hand, this could prove a boon for much of Africa, Asia, India and the Middle East, too.

Chemical engineers at Melbourne University came up with what they describe as a simple design: an electrolyzer with two flat plates acting as anode and cathode. Sandwiched between the two plates is a porous material – melamine sponge, for example, or sintered glass foam. This medium is soaked in a hygroscopic ionic solution – a chemical that can absorb moisture from the air spontaneously.

Sep 14, 2022

New Solar-Powered Invention Creates Hydrogen Fuel from the Air

Posted by in categories: sustainability, transportation

A high-tech sponge can absorb water vapor from the air and convert it to pure hydrogen for use in hydrogen fuel cell vehicles and machines. This…

Sep 14, 2022

‘Doomsday Glacier’ is teetering even closer to disaster than scientists thought, new seafloor map shows

Posted by in categories: climatology, existential risks, robotics/AI, sustainability

Underwater robots that peered under Antarctica’s Thwaites Glacier, nicknamed the “Doomsday Glacier,” saw that its doom may come sooner than expected with an extreme spike in ice loss. A detailed map of the seafloor surrounding the icy behemoth has revealed that the glacier underwent periods of rapid retreat within the last few centuries, which could be triggered again through melt driven by climate change.

Thwaites Glacier is a massive chunk of ice — around the same size as the state of Florida in the U.S. or the entirety of the United Kingdom — that is slowly melting into the ocean off West Antarctica (opens in new tab). The glacier gets its ominous nickname because of the “spine-chilling” implications of its total liquidation, which could raise global sea levels between 3 and 10 feet (0.9 and 3 meters), researchers said in a statement (opens in new tab). Due to climate change, the enormous frozen mass is retreating twice as fast as it was 30 years ago and is losing around 50 billion tons (45 billion metric tons) of ice annually, according to the International Thwaites Glacier Collaboration (opens in new tab).

The Thwaites Glacier extends well below the ocean’s surface and is held in place by jagged points on the seafloor that slow the glacier’s slide into the water. Sections of seafloor that grab hold of a glacier’s underbelly are known as “grounding points,” and play a key role in how quickly a glacier can retreat.

Sep 14, 2022

Cool Job: Meet the engineer who designs the sounds for Audi’s EVs

Posted by in categories: sustainability, transportation

“We think that each car needs to sound for itself.”

It was roughly six years ago when Audi started designing bold soundtracks for its growing line of hybrids and EVs. Why did the 111-year-old carmaker need custom sounds for its forward-looking product line? It all comes down to one thing: electric vehicles are practically silent, even when traveling at high speeds.


Audi.

Continue reading “Cool Job: Meet the engineer who designs the sounds for Audi’s EVs” »

Sep 13, 2022

Aircraft Emissions, Their Plume-Scale Effects, and the Spatio-Temporal Sensitivity of the Atmospheric Response: A Review

Posted by in categories: climatology, sustainability

Sep 13, 2022

This ‘solar tree’ may be the EV charging station of the future

Posted by in categories: solar power, sustainability, transportation

Sep 13, 2022

Enzyme researchers partner with pioneering AI company, DeepMind, in developing green solutions to combat plastic waste

Posted by in categories: robotics/AI, sustainability

University of Portsmouth joins leading AI researchers at DeepMind to help engineer faster acting enzymes for recycling some of the worlds most polluting single use plastics.

The University’s Centre for Enzyme Innovation (CEI) has used DeepMind’s ground-breaking AI system to make strides in their research on circular recycling.

Sep 13, 2022

This 26-year-old engineer plans to generate solar power at night using space mirrors

Posted by in categories: solar power, space travel, sustainability

This will make solar the cheapest type of clean energy.

The biggest challenge with solar power is that it can be produced only during the day. This is also one of the major reasons why many people and industries abstain from investing in solar panels because they are not a stable source of power. However, 26-year-old innovator and entrepreneur Ben Nowack claims to have developed a method that would allow solar energy production during the night as well.

Continue reading “This 26-year-old engineer plans to generate solar power at night using space mirrors” »

Sep 13, 2022

Deep Learning Technology Predicts Accidents on The Road

Posted by in categories: mapping, robotics/AI, satellites, sustainability

Studies say that by combining historical accident data with road maps, satellite imagery, and GPS, a machine learning model is trained to create high-resolution crash maps, we might be getting ever so closer to safer roads. Technology has changed a lot over the years such as GPS systems that eliminated the need to memorize streets orally, sensors and cameras that warn us of objects that are close to our vehicles, and autonomous electric vehicles. However, the precautions we take on the road have largely remained the same. In most places, we still rely on traffic signs, mutual trust, and the hope that we’ll reach our destination safely.

With a view to finding solutions to the uncertainty underlying road accidents, researchers at the MIT Computer Science and Artificial Intelligence Laboratory have been working with the Qatari Center for Artificial Intelligence to develop a deep learning model that can predict high-resolution maps of accident risks. The model calculates the number of accidents predicted for a specific future time frame using past accident data, road maps, simulations and GPS traces. Thus, high-risk zones and future crashes can be identified using the map.

According to reports by homelandsecuritynewswire.com, maps of this type have been captured so far at much lower resolutions, resulting in a loss of vital information. Former attempts have relied mostly on hystorical crash data, whereas the research team has compiled a wide base of critical information, identifying high-risk areas by analyzing GPS signals that provide data on traffic density, speed, and direction, along with satellite imagery that provides data on road structures. They observed that highways, for example, are more hazardous than nearby residential roads, and intersections and exits to highways are even more dangerous than other highways.