Scientists may have made a major breakthrough in the quest to produce limitless energy. According to a new study published in the journal American Chemical Society, scientists are looking deeper at a molecule known as azulene, which is a blue-light emitting molecule that seems to flout the fundamental rules of photochemistry.
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Jets that develop along the walls of fluid-based thermal-energy-storage systems induce multiple flows that limit the devices’ ability to store energy.
Converting waste heat from renewable-energy technologies into electricity could reduce the need for fossil-fuel power stations—but only if that energy can be stored efficiently, for example, in a thermal battery. Researchers have partially solved this problem by designing batteries with vacuum insulation panels that reduce thermal leakage to the environment. But the useful energy available to the system can diminish even if environmental heat loss is reduced to zero. Now Christian Cierpka of the Technical University of Ilmenau, Germany, and colleagues have explored one such energy drain: mixing of hot and cold regions within a fluid-based energy-storage device [1]. The results could aid in the design of more-efficient thermal-energy-storage systems, potentially making such facilities useful as backups for intermittent renewable-energy sources.
The team studied mixing in a common thermal-energy-storage system in which a hot fluid reservoir sits atop a cold one. Between the reservoirs lies a transition layer with a temperature gradient across its width. The maximum energy output of such a battery depends on the temperature difference between the hot and cold reservoirs. Any drop in this difference will reduce the battery’s recoverable energy.
Renewable energy grids need lots of energy storage – and EVs plugged into charging stations represent a huge, city-wide battery just waiting to help out. The Dutch city of Utrecht is about to pioneer a clever way to kickstart two-way charging.
The idea has been done plenty at the domestic level – where devices like Toyota’s V2H (vehicle-to-home) charging system can turn an electric car into a high-powered backup power supply capable of running your whole home for days at a time.
And people have been talking about it on a broader, city-wide scale since the dawn of the EV revolution; the same high power density batteries that makes EVs so quick to accelerate make them perfect for quickly sending power back into the grid to smooth out demand spikes.
Researchers used laser pulses to enhance MXene’s electrode properties, leading to a potential breakthrough in rechargeable battery technology that could surpass traditional lithium-ion batteries.
As the global community shifts towards renewable energy sources like solar and wind, the demand for high-performance rechargeable batteries is intensifying. These batteries are essential for storing energy from intermittent renewable sources. While today’s lithium-ion batteries are effective, there’s room for improvement. Developing new electrode materials is one way to improve their performance.
For nearly five years, Austin Energy’s EVs for Schools program has provided access to electric vehicle charging infrastructure and related technology curriculum to more than 150 schools across Central Texas. Now, AE is gearing up for the rollout of its upgraded program, adapted to meet the changing landscape of EV technology.
A private Chinese company, Thrust-to-Weight Ratio Engine, was able to test a rotary detonation engine on a drone. This is the first such test. Previously, only bench tests were conducted.
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The rotary detonation engine will open the way to the development of hypersonic transport systems, including aircraft and missiles. Another feature of the propulsion system is reduced fuel consumption.
The company’s Thrust-to-Weight Ratio Engine was developed jointly with the Industrial Technology Research Institute of Chongqing University. It was named FB-1 Rotating Detonation Engine.
NASA has announced an updated plan to continue New Horizons’ mission of exploration of the outer solar system.
Beginning in fiscal year 2025, New Horizons will focus on gathering unique heliophysics data, which can be readily obtained during an extended, low-activity mode of operations.
While the science community is not currently aware of any reachable Kuiper Belt object, this new path allows for the possibility of using the spacecraft for a future close flyby of such an object, should one be identified. It also will enable the spacecraft to preserve fuel and reduce operational complexity while a search is conducted for a compelling flyby candidate.
AUSTIN (KXAN) — As the City of Austin works toward reducing its carbon footprint, city officials are working to expand programs and infrastructure to help make electric vehicle technology more accessible citywide.
Amy Atchley, senior lead with Austin Energy’s EV equity program, spoke Tuesday at MOVE America 2023, a mobility conference held in downtown Austin. Atchley’s presentation centered around providing EV access to underserved community members, particularly as the city moves toward a 2040 goal of net zero carbon emissions.
With that goal in mind, she noted transportation is the leading emitter of carbon dioxide into the atmosphere. In order to achieve that benchmark, she said the city must have at least 40% of its vehicle miles traveled done via electric vehicle technology by 2030.
The Federal Trade Commission and 17 state attorneys general today sued Amazon.com, Inc. alleging that the online retail and technology company is a monopolist that uses a set of interlocking anticompetitive and unfair strategies to illegally maintain its monopoly power. The FTC and its state partners say Amazon’s actions allow it to stop rivals and sellers from lowering prices, degrade quality for shoppers, overcharge sellers, stifle innovation, and prevent rivals from fairly competing against Amazon.
The complaint alleges that Amazon violates the law not because it is big, but because it engages in a course of exclusionary conduct that prevents current competitors from growing and new competitors from emerging. By stifling competition on price, product selection, quality, and by preventing its current or future rivals from attracting a critical mass of shoppers and sellers, Amazon ensures that no current or future rival can threaten its dominance. Amazon’s far-reaching schemes impact hundreds of billions of dollars in retail sales every year, touch hundreds of thousands of products sold by businesses big and small and affect over a hundred million shoppers.
“Our complaint lays out how Amazon has used a set of punitive and coercive tactics to unlawfully maintain its monopolies,” said FTC Chair Lina M. Khan. “The complaint sets forth detailed allegations noting how Amazon is now exploiting its monopoly power to enrich itself while raising prices and degrading service for the tens of millions of American families who shop on its platform and the hundreds of thousands of businesses that rely on Amazon to reach them. Today’s lawsuit seeks to hold Amazon to account for these monopolistic practices and restore the lost promise of free and fair competition.”
An international research team has made a groundbreaking discovery at the European XFEL X-ray laser, bringing us closer to realizing the potential of atomic clocks.
They achieved this by exciting a highly promising transition in the nucleus of scandium, a readily available element, Deutsches Elektronen-Synchrotron (DESY) announced. This unique resonance demands X-rays with an energy of 12.4 kiloelectronvolts (keV), an astonishing 10,000 times the energy of visible light, with a remarkable width of only 1.4 femtoelectronvolts (feV), equivalent to one second in 300 billion years.
Ralf Röhlsberger, a DESY researcher, emphasizes the significance of this achievement: “This corresponds to one second in 300 billion years.” Such precision would redefine the boundaries of timekeeping accuracy.