Can hydrogen be a substitute for fossil fuels across the global economy? A report tabled at COP-26 provides a plan to make it so.
Archive for the ‘energy’ category: Page 161
Mar 3, 2022
PV-assisted heat pump module facade for power supply, heating, cooling, and ventilation
Posted by Chima Wisdom in category: energy
Designed by scientists in Germany, the module facade has to be integrated with a building’s technical equipment. The rooms behind the facade can be supplied with solar power and at the same time heated, cooled and ventilated.
Mar 3, 2022
Tesla Said It Was Possible, Now Wireless Electricity Is Finally Becoming Reality
Posted by Chima Wisdom in categories: energy, engineering, internet, space, sustainability
Nikola Tesla’s vision of the world is about to become reality.
#engineering
Mar 2, 2022
Britain’s Recent Blackout Has Plenty of Company
Posted by Gemechu Taye in category: energy
Feb 28, 2022
Entirely New, Inexpensive Catalyst Speeds the Production of Oxygen From Water
Posted by Genevieve Klien in categories: chemistry, energy, transportation
The material could replace rare metals and lead to more economical production of carbon-neutral fuels.
An electrochemical reaction that splits apart water molecules to produce oxygen is at the heart of multiple approaches aiming to produce alternative fuels for transportation. But this reaction has to be facilitated by a catalyst material, and today’s versions require the use of rare and expensive elements such as iridium, limiting the potential of such fuel production.
Now, researchers at MIT and elsewhere have developed an entirely new type of catalyst material, called a metal hydroxide-organic framework (MHOF), which is made of inexpensive and abundant components. The family of materials allows engineers to precisely tune the catalyst’s structure and composition to the needs of a particular chemical process, and it can then match or exceed the performance of conventional, more expensive catalysts.
Feb 28, 2022
Next-generation geothermal tech will drill deeper than ever before
Posted by Future Timeline in categories: energy, engineering
“Aside from vastly expanding the geographic coverage of this energy source, the sheer feat of engineering involved deserves a mention. Until now, the deepest artificial point on Earth has been the Kola Superdeep Borehole in Russia. That Soviet-era project reached 12,262 metres (40,230 ft) below ground. Quaise would smash that record if achieving the full potential of 20,000 metres (65,600 ft).” https://www.futuretimeline.net/blog/2022/02/28-geothermal-en…nology.htm
A new drilling technology able to reach depths of 20 km could enable geothermal power to be accessed almost anywhere in the world.
Feb 28, 2022
New method for rapid, efficient hydrogen generation from water
Posted by Omuterema Akhahenda in categories: energy, nanotechnology
Aluminum is a highly reactive metal that can strip oxygen from water molecules to generate hydrogen gas. Now, researchers at UC Santa Cruz have developed a new cost-effective and effective way to use aluminum’s reactivity to generate clean hydrogen fuel.
In a new study, a team of researchers shows that an easily produced composite of gallium and aluminum creates aluminum nanoparticles that react rapidly with water at room temperature to yield large amounts of hydrogen. According to researchers, the gallium was easily recovered for reuse after the reaction, which yields 90% of the hydrogen that could theoretically be produced from the reaction of all the aluminum in the composite.
Easy aluminum nanoparticles split water and generate hydrogen gas rapidly under ambient conditions.
Continue reading “New method for rapid, efficient hydrogen generation from water” »
Feb 27, 2022
AeroSHARK thin film reduces drag on airplanes
Posted by Shubham Ghosh Roy in categories: chemistry, energy, transportation
A collaboration between engineers at Lufthansa Technik and chemicals and coatings manufacturer BASF has resulted in the creation of AeroSHARK—a thin film coating that can be applied to an aircraft’s outer skin to reduce drag and thus fuel consumption and carbon emissions. Swiss International Airlines has posted a blog entry on their website describing the film and the benefits the company expects to get from it. Lufthansa Technik has also posted a blog entry detailing the development of AeroSHARK.
The thin film was developed as part of an effort kicked off by engineers at Lufthansa looking for ways to reduce the cost of fuel for their planes. To that end, they looked to nature, and more specifically, sharks—creatures who have been streamlined over millions of years of evolution. The researchers found that shark skin is covered with millions of “riblets,” which are protrusions that run the length of their bodies. The engineers then teamed up with a group at BASF to create a similar type of skin for aircraft. The result was the creation of AeroSHARK, a clear, thin skin with millions of riblets, each just 50 micrometers high. Testing showed that the material reduces drag.
Continue reading “AeroSHARK thin film reduces drag on airplanes” »
Feb 26, 2022
U.S. Bets on Faster-Charging Battery in Race to Catch Energy Rivals
Posted by Genevieve Klien in category: energy
The U.S. is pinning its hopes in the race for energy supremacy in a low-carbon world on startups like Ion Storage Systems, which is aiming to build a better battery.
Feb 25, 2022
A new, inexpensive catalyst speeds the production of oxygen from water
Posted by Saúl Morales Rodriguéz in categories: chemistry, energy, transportation
An electrochemical reaction that splits apart water molecules to produce oxygen is at the heart of multiple approaches aiming to produce alternative fuels for transportation. But this reaction has to be facilitated by a catalyst material, and today’s versions require the use of rare and expensive elements such as iridium, limiting the potential of such fuel production.
Now, researchers at MIT and elsewhere have developed an entirely new type of catalyst material, called a metal hydroxide-organic framework (MHOF), which is made of inexpensive and abundant components. The family of materials allows engineers to precisely tune the catalyst’s structure and composition to the needs of a particular chemical process, and it can then match or exceed the performance of conventional, more expensive catalysts.
The findings are described today in the journal Nature Materials, in a paper by MIT postdoc Shuai Yuan, graduate student Jiayu Peng, Professor Yang Shao-Horn, Professor Yuriy Román-Leshkov, and nine others.