Tag

Energy Harvesting

All articles tagged with #energy harvesting

science1 month ago•5 min saved

Flexible Diamond Membranes Spark Piezoelectric Electricity

Researchers at the University of Hong Kong demonstrated that ultrathin, flexible polycrystalline diamond membranes generate a measurable piezoelectric voltage when bent, due to grain-boundary–induced polarization. This overturns a century-old belief that diamond cannot produce electricity and could enable self-powered sensors, tiny energy systems, and implantable medical devices, advancing diamond from passive support to active electrical material.

via Science Daily|

#diamond #energy-harvesting #materials-science

technology1 month ago•134 min saved

Magnetoelastic tent could power small devices from wind and motion

Researchers have developed a magnetoelastic tent using smart textile layers that harvest energy from wind, inside movement, and fabric flexing, converting mechanical changes in magnetism into electricity to run small devices. In lab tests, a tiny magnetoelastic textile unit charged a 0.22‑μF capacitor to 5.8 V in 1.5 seconds, demonstrating a proof of concept for powering low‑power electronics like LEDs or sensors. The concept targets off‑grid or disaster settings where power is scarce, but questions remain about real-world energy output, durability, and scalable manufacturing before it could replace traditional power sources.

via Live Science|

#energy-harvesting #magnetoelastic #off-grid

technology4 months ago•5 min saved

Room-temperature quantum effect could enable battery-free electronics

Researchers demonstrate that the nonlinear Hall effect in a topological insulator can convert ambient alternating signals into direct current, remaining stable at room temperature and tunable by temperature. The mechanism shifts from defect-dominated at low temperatures to phonon-driven at higher temperatures, with the signal direction potentially reversing. This could enable battery-free electronics like self-powered sensors and wearables, though practical devices are years away.

via ScienceDaily|

#battery-free-electronics #energy-harvesting #nonlinear-hall-effect

energy4 months ago•10 min saved

Gelatin-Salt MEG Turns Humidity into Stable Power

Researchers have created a biodegradable Moisture-Electric Generator (MEG) from gelatin, table salt, and activated carbon that harvests energy from ambient humidity. A single unit delivers about 1 volt for over 30 days, and linking units in series can reach up to 90 V and 5 mA to power a 40-LED string, enabling applications in wearable health sensors. The device uses a water-based manufacturing process, relies on non-toxic materials, and biodegrades safely after use, offering a low-impact alternative to conventional batteries.

via Interesting Engineering|

#biodegradable-electronics #energy #energy-harvesting

world5 months ago•1 min saved

FIA backs 2027 engine redesign to ease energy harvesting

FIA officials unanimously agreed to a 2027 engine redesign aimed at reducing reliance on energy harvesting and the associated speed penalties; final specs will be discussed in technical groups with teams and power-unit manufacturers, exploring methods to make harvesting less critical while managing costs and chassis constraints, with drivers welcoming the direction but saying more progress is needed.

via BBC|

#2027 #energy-harvesting #engine

sports5 months ago•5 min saved

Miami test exposes mixed results of F1's 2026 rule shake-up

At Miami, F1 tested the 2026 rule tweaks—smaller, lighter cars with hybrid engines and revised energy harvesting (7 MJ limit in qualifying, 350 kW) to encourage closer racing—with mixed responses: some drivers saw small improvements, but Verstappen remained critical and many called the changes insufficient as laps were ~1.5 seconds slower and ‘yo‑yo’ battles persisted.

via Autosport|

#2026-regulations #closer-racing #energy-harvesting

sports5 months ago•4 min saved

Miami Debut Tests F1's 2026 Rule Shake-Up

Miami marked the return of F1 with new 2026 rules aimed at closer racing via lighter cars and a hybrid power split. The changes lowered energy harvesting in qualifying from 8 to 7 MJ and boosted peak electrical power to 350 kW to stabilise the speed profile. Reactions were mixed: Verstappen criticized the direction, Leclerc called it a step in the right direction, Norris remained unconvinced, and Piastri said the problems aren’t fixed though some improvements were seen, with times slower than 2025. With 2027 engine rule changes reportedly in the works, more tweaks could be coming to the formula.

via Motorsport.com|

#energy-harvesting #f1-2026-regulations #formula1

sports8 months ago•9 min saved

2026 F1 cars feel leaner and livelier, say Mercedes drivers

Mercedes’ George Russell and Andrea Kimi Antonelli say the 2026 F1 machines, unveiled after Barcelona testing, remain true Formula 1 cars but are lighter, smaller and more agile thanks to new aerodynamics and a 50/50 hybrid power unit. They describe moments of brutal torque out of corners, energy harvesting that can require lift-and-coast on some straights, and new start procedures, but also a more intuitive driving experience with improved corner feel and potential for easier overtaking compared with current cars. The changes come with learning curves, tyre management considerations, and no MGU-H, but the general consensus is that the cars are challenging yet engaging to drive.

via Crash.net|

#2026-regulations #energy-harvesting #formula1

technology1 year ago•3 min saved

Scientists develop tech that could render batteries obsolete in many devices

Researchers at University College London have developed high-efficiency perovskite solar cells capable of harvesting indoor light to power small devices, potentially eliminating the need for batteries in many electronics. These cells boast a record conversion rate of 37.6% and are produced using simple, printable methods from abundant materials, paving the way for more sustainable and cost-effective energy solutions.

via The Cool Down|

#battery-replacement #energy-harvesting #indoor-light-energy

science-and-technology1 year ago•3 min saved

Innovative Engineering Enables Self-Propelled Ice Discs

Researchers have developed a surface pattern that allows ice disks to move autonomously by directing meltwater flow, which could inspire new energy generation methods and rapid defrosting techniques.

via Gizmodo|

#energy-harvesting #herringbone-pattern #ice-movement

technology1 year ago•1 min saved

Battery-Free Solar Device Powered by BPW34 Photodiode

A device called Solar_nRF uses BPW34 photodiodes and an ultra-low-power boost converter to harvest solar energy, powering a Bluetooth sensor that transmits temperature data without batteries, demonstrating innovative low-power energy harvesting technology.

via Hackaday|

#bluetooth #energy-harvesting #low-power

technology2 years ago•1 min saved

"Self-Powered Sensor Design: MIT's Breakthrough Guide"

MIT researchers have developed a battery-free sensor that can harvest energy from its surroundings, allowing for the monitoring of machines in hard-to-reach places without the need for battery replacements or wired connections, potentially revolutionizing infrastructure monitoring.

via Interesting Engineering|

#battery-free #energy-harvesting #infrastructure-monitoring

technology2 years ago•6 min saved

"Self-Powered Sensor Harnesses Magnetic Energy for Automatic Energy Harvesting"

MIT researchers have developed a self-powered sensor that can harvest energy from its environment, eliminating the need for batteries or special wiring. The sensor, which can be embedded in hard-to-reach places, such as inside a ship's engine, gathers data on power consumption and operations for extended periods. The researchers offer a design guide for an energy-harvesting sensor that can be applied to various power sources, making it suitable for factories, warehouses, and commercial spaces. The sensor's energy management system addresses challenges such as cold starting, energy storage, and control algorithms, enabling it to operate without a battery and transmit data using Bluetooth.

via MIT News|

#energy-harvesting #energy-management #mit

technology2 years ago•2 min saved

"Lenovo Unveils CES 2024 Keyboard and Mouse That Convert Anxiety into Electricity"

At CES 2024, Lenovo unveiled a keyboard and mouse set that harnesses kinetic energy from fidgety fingers to recharge, featuring a spinning dial on the keyboard and a winding ring on the mouse. The keyboard includes a solar panel for passive recharging and a spinning dial that converts kinetic energy into battery charge, while the mouse has a winding key for its battery. Lenovo claims that a few minutes of spinning or winding can provide significant battery charge, and the devices are also equipped with USB-C ports and wireless connectivity options. These prototype devices are not yet available for purchase.

via PCMag|

#ces-2024 #energy-harvesting #keyboard

science-and-technology2 years ago•2 min saved

Harnessing the Power of Black Holes: Turning Them into Batteries

Researchers have proposed two methods for harnessing energy from black holes, utilizing their rotational and gravitational properties. The first method involves charging the black hole battery by injecting massive, electrically charged particles, while the second method involves collecting Schwinger pairs formed near the event horizon. Although the practical use of black hole energy remains a distant possibility, exploring these possibilities provides insights into the mechanics of these astronomical phenomena.

via Giant Freakin Robot|

#astrophysics #black-holes #energy-harvesting