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Archive for the ‘energy’ category: Page 209

Feb 5, 2021

POWERPASTE, a high-density, safe, and easily transportable hydrogen energy fuel

Posted by in categories: energy, transportation

The future for hydrogen fuel? 😃


Researchers have developed a magnesium-based POWERPASTE that stores hydrogen energy at 10 times the density of a lithium battery, ideal for small vehicles.

Feb 4, 2021

Ballard Signs MOU with Global Energy Ventures For Development of Fuel Cell-Powered Ship

Posted by in category: energy

VANCOUVER, CANADA and WEST PERTH, AUSTRALIA – Ballard Power Systems (NASDAQ: BLDP; TSX: BLDP) today announced that it has signed a non-binding Memorandum of Understanding (MOU) with Global Energy Ventures (ASX: GEV; www.gev.com) – a provider of integrated compressed shipping solutions for the transportation of energy to regional markets, headquartered in Australia – for the development of a new fuel cell-powered ship, called C-H2 Ship, designed to transport compressed green hydrogen.

GEV Captioned

The power required for a small-scale demonstration of the C-H2 Ship is expected to be under 10 megawatts (MW). At full scale, the C-H2 Ship will have a propulsion power requirement of approximately 26MW, and a containment system for storage of 2000 tons of compressed green hydrogen.

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Feb 3, 2021

A New Kind of Light in the Universe? “Super-Planckian” Material Emits Light That Exceeds Limits of Natural Law

Posted by in categories: energy, quantum physics

Could there be a new kind of light in the universe? Since the late 19th century, scientists have understood that, when heated, all materials emit light in a predictable spectrum of wavelengths. Research published today in Nature Scientific Reports presents a material that emits light when heated that appears to exceed the limits set by that natural law.

In 1900, Max Planck first mathematically described a pattern of radiation and ushered in the quantum era with the assumption that energy can only exist in discrete values. Just as a fireplace poker glows red hot, increasing heat causes all materials to emit more intense radiation, with the peak of the emitted spectrum shifting to shorter wavelengths as heat rises. In keeping with Planck’s Law, nothing can emit more radiation than a hypothetical object that absorbs energy perfectly, a so-called “blackbody.”

The new material discovered by Shawn Yu Lin, lead author and a professor of physics at Rensselaer Polytechnic Institute, defies the limits of Planck’s law, emitting a coherent light similar to that produced by lasers or LEDs, but without the costly structure needed to produce the stimulated emission of those technologies. In addition to the spectroscopy study just published in Nature Scientific Reports, Lin previously published an imaging study in IEEE Photonics Journal. Both show a spike in radiation at about 1.7 microns, which is the near-infrared portion of the electromagnetic spectrum.

Feb 3, 2021

Thermomagnetic generators convert waste heat into electrical power even at small temperature differences

Posted by in categories: energy, sustainability

Use of waste heat contributes largely to sustainable energy supply. Scientists of Karlsruhe Institute of Technology (KIT) and Tƍhoku University in Japan have now come much closer to their goal of converting waste heat into electrical power at small temperature differences. As reported in Joule, electrical power per footprint of thermomagnetic generators based on Heusler alloy films has been increased by a factor of 3.4.

Feb 3, 2021

Hybrid supercapacitor offers NiMH energy density, charges much faster

Posted by in category: energy

Researchers at the Queensland University of Technology have added another hybrid supercapacitor design to the mix, promising the near-instant charge and discharge of a supercap with vastly improved energy storage on par with NiMH batteries.

Feb 2, 2021

Bizarre, Never-Seen-Before Activity Spotted From One of the Strongest Magnets in the Universe

Posted by in categories: energy, physics, space

Astronomers from the ARC Centre of Excellence for Gravitational Wave Discovery (OzGrav) and CSIRO have just observed bizarre, never-seen-before behavior from a ‘radio-loud’ magnetar—a rare type of neutron star and one of the strongest magnets in the Universe.

Their new findings, published in the Monthly Notices of the Royal Astronomical Society (MNRAS), suggest magnetars have more complex magnetic fields than previously thought – which may challenge theories of how they are born and evolve over time.

Magnetars are a rare type of rotating neutron star with some of the most powerful magnetic fields in the Universe. Astronomers have detected only thirty of these objects in and around the Milky Way —most of them detected by X-ray telescopes following a high-energy outburst.

Feb 1, 2021

Physicists create tunable superconductivity in twisted graphene ‘nanosandwich’

Posted by in categories: energy, physics

When two sheets of graphene are stacked atop each other at just the right angle, the layered structure morphs into an unconventional superconductor, allowing electric currents to pass through without resistance or wasted energy.

Jan 28, 2021

China-developed hydrogen fuel-cell hybrid locomotive rolls off assembly line

Posted by in category: energy

Photo: web.

Jan 28, 2021

Efficiently Converting Light Energy Into Surface Waves on Graphene

Posted by in categories: energy, nanotechnology, physics

Dotty graphene and doping: Whatever it takes for Russia’s record plasmonics to shine.

Physicists from MIPT and Vladimir State University, Russia, have achieved a nearly 90% efficiency converting light energy into surface waves on graphene. They relied on a laser-like energy conversion scheme and collective resonances. The paper came out in Laser & Photonics Reviews.

Manipulating light at the nanoscale is a task crucial for being able to create ultracompact devices for optical energy conversion and storage. To localize light on such a small scale, researchers convert optical radiation into so-called surface plasmon-polaritons. These SPPs are oscillations propagating along the interface between two materials with drastically different refractive indices — specifically, a metal and a dielectric or air. Depending on the materials chosen, the degree of surface wave localization varies. It is the strongest for light localized on a material only one atomic layer thick, because such 2D materials have high refractive indices.

Jan 27, 2021

Waste-to-Energy Technology Future for Hydrogen Fuel Cells

Posted by in categories: energy, transportation

People are continually interested in creative ways to get rid of waste. The world has too much of it, so how could technology solve that problem by addressing another need? Hydrogen fuel cell vehicles are an emerging possibility.

The processes used by many forward-thinking companies center on converting waste into hydrogen energy. Here’s a look at what the future may hold.

Waste-to-Energy Projects Are Happening