Engineering news

Engineering

Safer all-solid-state sodium battery could cut grid storage costs and reduce lithium dependence

Lithium-ion batteries dominate the market for large-scale energy storage today. However, the element's uneven global distribution and rising costs are driving the search for alternatives. Sodium is roughly a thousand times ...

Engineering

Perovskite/silicon tandem solar cells reach 32.89% certified efficiency with peak-selective passivation strategy

A team of Chinese scientists has developed a new passivation strategy that significantly improves both the efficiency and operational stability of perovskite/silicon tandem solar cells. The study has been published in the ...

Engineering

These brick walls are built to come apart, move, and rise again after demolition

The construction sector still has some way to go in terms of reducing the consumption of resources and greenhouse gas emissions. One of these relates to the construction waste produced during the demolition of buildings. ...

Engineering

Error correction tech boosts the 3D printing of big composite parts

Researchers at the U.S. Department of Energy's (DOE) Oak Ridge National Laboratory (ORNL) have created a new tool that can catch and correct potential mistakes in real time while 3D printing large plastic parts. The automated ...

Engineering

Custom device maps carbon capture reactions in real time

Removing carbon dioxide (CO2) directly from the air, a process called direct air capture (or DAC), is one of several approaches being developed to help reduce the concentration of this greenhouse gas in the atmosphere. Among ...

Engineering

Building the future with robotic construction

On April 24, the Architectural Robotic Construction Lab ( ARC Lab) in The University of Texas at Arlington's College of Architecture, Planning and Public Affairs demonstrated its new large-scale 3D printing technology.

Engineering

Basalt could be the key to greener and cheaper cement

Ideas to reduce carbon emissions often revolve around renewable power, electric vehicles and energy efficiency. But there's another, less colorful character that's often overlooked: cement.

Engineering

Smart yarn tracks muscle activity in the body

Created from noise-resistant, conductive threads, a high-tech new smart fabric could find uses in health monitoring, sports performance and rehabilitation. The work is published in the journal Science Advances.

Engineering

Strengthening wood with needle and thread

Wood laminates are used in many different ways, for example, in the manufacture of skis and snowboards or in components for vehicle interiors. However, their weight advantages for lightweight construction also have disadvantages. ...

Engineering

What 100,000 simulations reveal about the US power grid

On August 13, 2003, a single transmission line near Cleveland, Ohio, sags into an overgrown tree limb and short circuits. Within minutes, nearby lines overload and trip one after another, triggering cascading failures across ...

Engineering

Why solid-state batteries keep short-circuiting

Batteries that use solid metal as their charge-carrying electrolyte could potentially be a safer and far more energy-dense alternative to lithium-ion batteries. Unfortunately, these solid-state batteries have been plagued ...

Engineering

Harvesting heat and electricity from the sun, when you need it

Solar energy is abundant and frustratingly ill-timed. A sunbeam can become either electricity (useful for running modern life) or heat (useful for keeping spaces warm). But conventional solar hardware is single-minded: Photovoltaic ...

Engineering

Mach 1.5 tests reveal noise feedback loops from supersonic jets

Researchers from the FAMU-FSU College of Engineering and the Florida Center for Advanced Aero-Propulsion, or FCAAP, are helping to solve a safety challenge in military aviation: the extreme noise generated by supersonic jets ...

Engineering

New bifacial solar cells yield efficiencies above 32%

Solar cells, devices that can convert sunlight into electricity, are now widely used in many countries worldwide. Over the past few years, energy engineers have been exploring alternative designs that could further boost ...