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Archive for the ‘energy’ category: Page 8

Nov 24, 2024

How Wastewater and Gas Flares Could Supercharge Green Hydrogen Production

Posted by in categories: energy, engineering, information science, sustainability

Oil and gas extraction in places like Texas’ Permian Basin leads to several waste products, including significant amounts of wastewater and flares firing into the sky. Texas Engineer Vaibhav Bahadur is researching how those byproducts, which are harmful to the environment, could be repurposed to serve as key elements in the creation of “green” hydrogen.

Bahadur, an associate professor in the Walker Department of Mechanical Engineering, recently published a new paper in the journal Desalination about a new way to potentially produce green hydrogen. It involves using the energy wasted via gas flaring to power reverse osmosis, a common, low-energy technique used for municipal water treatment. Hydrogen production requires pristine water, and this process satisfies that need by removing salts and other elements from the equation.

Learn more about green hydrogen in the Q&A with Bahadur below, as well as his research, next steps and its broader implications.

Nov 24, 2024

Honda Is Getting Closer To Making Solid-State Batteries

Posted by in categories: energy, transportation

The automaker built a demonstration production line to figure out how to make affordable, high-density solid-state batteries for EVs and everything else.

Nov 23, 2024

US fusion leaps forward with 3D-printed fuel capsules breakthrough

Posted by in categories: 3D printing, energy

LLNL is developing a new 3D printing technique to create the millions of fuel capsules needed for fusion power plants.

Nov 23, 2024

Ion Superhighways: The Nanotech Breakthrough Powering Tomorrow’s Tech

Posted by in categories: energy, nanotechnology

Researchers have significantly accelerated ion movement using nanotechnology, potentially improving technologies from battery charging to biosensing.

This breakthrough at Washington State University and Lawrence Berkeley National Laboratory involves creating a nanochannel lined with molecules that attract ions, allowing them to move over ten times faster than before. This development could revolutionize energy storage and help detect environmental pollutants or neurological activities.

Breaking Speed Records With Nanoscience

Nov 22, 2024

Quantum-inspired design boosts efficiency of heat-to-electricity conversion

Posted by in categories: economics, energy, quantum physics, sustainability

Researchers at Rice University have found a new way to improve a key element of thermophotovoltaic (TPV) systems, which convert heat into electricity via light. Using an unconventional approach inspired by quantum physics, Rice engineer Gururaj Naik and his team have designed a thermal emitter that can deliver high efficiencies within practical design parameters.

The research could inform the development of thermal-energy electrical storage, which holds promise as an affordable, grid-scale alternative to batteries. More broadly, efficient TPV technologies could facilitate renewable energy growth—an essential component of the transition to a net-zero world. Another major benefit of better TPV systems is recouping from industrial processes, making them more sustainable. To put this in context, up to 20–50% of the heat used to transform raw materials into consumer goods ends up being wasted, costing the United States economy over $200 billion annually.

TPV systems involve two main components: photovoltaic (PV) cells that convert light into electricity and thermal emitters that turn heat into light. Both of these components have to work well in order for the system to be efficient, but efforts to optimize them have focused more on the PV cell.

Nov 21, 2024

Physicists develop new method to visualize magnetic nanostructures with high resolution

Posted by in categories: energy, nanotechnology, physics

A new method enables researchers to analyze magnetic nanostructures with a high resolution. It was developed by researchers at Martin Luther University Halle-Wittenberg (MLU) and the Max Planck Institute of Microstructure Physics in Halle.

The new method achieves a resolution of around 70 nanometers, whereas normal light microscopes have a resolution of just 500 nanometers. This result is important for the development of new, energy-efficient storage technologies based on spin electronics. The team reports on its research in the current issue of the journal ACS Nano.

Normal optical microscopes are limited by the wavelength of light and details below around 500 nanometers cannot be resolved. The new method overcomes this limit by utilizing the anomalous Nernst effect (ANE) and a metallic nano-scale tip. ANE generates an electrical voltage in a magnetic metal that is perpendicular to the magnetization and a .

Nov 20, 2024

Novel crystals can harvest water from air without any energy input

Posted by in categories: chemistry, energy, engineering, sustainability

A team of researchers from Jilin University, NYU Abu Dhabi’s Smart Materials Lab, and the Center for Smart Engineering Materials, led by Professor of Chemistry Pance Naumov, has developed a new crystalline material that can harvest water from fog without any energy input.

The design of the novel type of smart crystals, which the researchers named Janus crystals, is inspired by and animals, which can survive in . Desert beetles and lizards, for example, have evolved to develop that have both hydrophilic and hydrophobic areas and effectively capture moisture from the air. Water is attracted to the hydrophilic areas and droplets are accumulated and transported through the hydrophobic areas.

The findings are presented in the paper titled “Efficient Aerial Water Harvesting with Self-Sensing Dynamic Janus Crystals,” recently published in the Journal of the American Chemical Society.

Nov 19, 2024

Quantum time crystals could be used to store energy

Posted by in categories: energy, quantum physics

The weird thermodynamics found in time crystals could be harnessed to store energy in a quantum battery-like device.

By Karmela Padavic-Callaghan

Nov 19, 2024

Statistical approach improves models of atmosphere on early Earth and exoplanets

Posted by in categories: chemistry, energy, space

As energy from the sun reaches Earth, some solar radiation is absorbed by the atmosphere, leading to chemical reactions like the formation of ozone and the breakup of gas molecules. A new approach for modeling these reactions, developed by a team led by scientists at Penn State, may improve our understanding of the atmosphere on early Earth and help in the search for habitable conditions on planets beyond our solar system.

The researchers have reported in the journal JGR Atmospheres that using a statistical method called correlated-k can improve existing photochemical models used to understand conditions on early Earth.

The approach can help scientists better understand the atmospheric composition of early Earth and will play an important role as new observatories come online in the coming decades that can provide new data on exoplanet atmospheres, the scientists said.

Nov 17, 2024

China’s hypergravity marvel to ‘compress’ time and space

Posted by in categories: energy, engineering

Revolutionary research tool will dial up gravity to mimic natural events and help to tap future energy reserves, solve engineering puzzles.

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