To save on fuel and reduce aircraft emissions, engineers are looking to build lighter, stronger airplanes out of advanced composites. These engineered materials are made from high-performance fibers that are embedded in polymer sheets. The sheets can be stacked and pressed into one multilayered material and made into extremely lightweight and durable structures.
Researchers at the University of Bristol have uncovered the secrets behind the quiet operation of futuristic aircraft equipped with innovative embedded engines.
The study sheds light on the noise generation and transmission mechanisms of boundary layer ingesting (BLI) ducted fans. These engines draw in air from both the front and the surface of the aircraft’s body and operate with high efficiency, reducing fuel consumption compared to traditional engines.
Researchers have developed a high-power hybrid sodium-ion battery that can be charged in seconds, potentially replacing lithium-ion batteries.
SpaceX’s new Raptor 4.0 engine and Starship V3 are set to revolutionize space travel, making it more affordable and accessible for orbital testing, satellite launches, and human missions to the Moon and Mars, while also benefiting the US Aerospace industry.
Questions to inspire discussion.
What are the key features of SpaceX’s new Raptor 4.0 engine?
—The Raptor 4.0 engine boasts a projected thrust of 303, with a long-term goal of 330, showcasing its potential power and compact design. It also has a thrust to weight ratio of 202, surpassing the performance of other rocket engines.
Sodium (Na), which is over 500 times more abundant than lithium (Li), has recently garnered significant attention for its potential in sodium-ion battery technologies. However, existing sodium-ion batteries face fundamental limitations, including lower power output, constrained storage properties, and longer charging times, necessitating the development of next-generation energy storage materials.
To power the energy transition, the world needs a reliable supply of critical minerals. Finding alternative materials can help secure the transition.
A single-walled carbon nanotube spring stores three times more mechanical energy than a lithium-ion battery, while offering wide temperature stability and posing no explosion risk.
Nissan says solid state batteries will double intensity of lithium batteries and cost less, and can also be used as energy storage.
Researchers have developed a high-performance energy management unit (EMU) that significantly boosts the efficiency of electrostatic generators for Internet of Things (IoT) applications. This breakthrough addresses the challenge of high impedance mismatch between electrostatic generators and electronic devices, unlocking new possibilities for ambient energy harvesting.
Electrostatic generators have emerged as a promising solution for powering low-power devices in Internet of Things (IoT) networks, utilizing energy from environmental sources such as wind and human motion. Despite their potential, the effectiveness of these generators has been hampered by an impedance mismatch when connected to electronic devices, leading to low energy utilization efficiency.
A study published in the journal Microsystems & Nanoengineering introduces an efficient energy management unit (EMU) designed to significantly boost the power efficiency of electrostatic generators for IoT devices. This innovation addresses the longstanding challenge of impedance mismatch and propels forward the potential for using environmental energy harvesting within the IoT domain.
I found this on NewsBreak.
Researchers in China have reportedly developed a new technology similar to hydropanels for harvesting water out of thin air that is powered by energy from the sun. The device could be especially useful in dry, arid areas where water — but not sunlight — is hard to come by.
The findings from the research team from Shanghai Jiao Tong University in China were published in the scientific journal Applied Physics Reviews.
“This atmospheric water harvesting technology can be used to increase the daily water supply needs, such as household drinking water, industrial water, and water for personal hygiene,” said Ruzhu Wang, one of the study’s authors.
