Articles tagged with Wave Energy
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Researchers at the University of Rochester create a new process to turn ordinary metal tubes unsinkable by etching micro- and nano-pits on their surface, making them superhydrophobic. The tubes stay afloat in water, even when damaged or submerged for extended periods.
Researchers developed a portfolio optimization framework to maximize offshore energy production by identifying optimal locations for wind turbines and marine hydrokinetic technologies. The study found that combining these technologies in suitable locations can significantly reduce costs and increase energy stability.
A recent study from the University of Surrey found that China's Plan on Clean Energy Accommodation has resulted in a decline in green total factor productivity. This measure reflects a region's ability to achieve economic growth while minimizing resource consumption and environmental degradation.
Researchers developed a machine learning-powered fluid simulation model that significantly reduces computation time without compromising accuracy. The new surrogate model maintains the same level of accuracy as traditional particle-based simulations while reducing computation time from approximately 45 minutes to just three minutes.
Recent technological advancements have expanded understanding of oceanic mesoscale eddies, regulating ocean energy distribution and material transport processes. The researchers identified four potential hotspots for future research, including eddy stability and air-sea interactions.
The study reveals the existence of valley vortex states within water wave crystals, introducing a new degree of freedom for water wave manipulation. These states have significant implications for ocean energy extraction, marine engineering, and coastal infrastructures.
Newly published results from a 2021 experiment reveal the particle-level processes that create auroras. The Kinetic-scale Energy and momentum Transport experiment created an Alfvén wave, which accelerated electrons on magnetic field lines, similar to an auroral beam of electrons.
The Center for Marine Autonomy and Robotics develops advanced underwater robots and autonomy algorithms, enabling intelligent operation without human oversight. The research team has received $7.4 million in grants to continue their mission, advancing unconventional marine platforms and enhancing AUV capabilities.
A new study suggests that smart robots can predict waves in real-time, enabling them to work stably in turbulent seas. This technology could reduce the cost of generating renewable energy by up to 50%, making it more competitive with fossil fuels.
Researchers created a modeling tool to design more robust marine hydrokinetic technologies and inform risk assessments for financing and permitting. The tool estimates the fragility curve of devices, helping developers create mooring systems that can withstand extreme weather conditions.
A study found that environmental factors like sea surface temperature, wave energy, and freshwater discharge have a greater impact on marine organisms' size and abundance than ecological processes. In colder waters, marine organisms are larger, with filter feeders growing up to 130% larger.
Researchers used aerial drone technology and boat-based surveys to map complex tidal flows around the world's most powerful tidal turbine, O2. The study provides new insights into optimal turbine placement and site-specific assessments to address uncertainties surrounding interactions with marine habitats and environments.
Researchers from Johns Hopkins and Portland State University develop a new computational method to enhance Large Eddy Simulations, improving accuracy for designing and optimizing floating offshore windfarms. The project combines modeling advancements with scaled experimental results to better predict wind-wave-turbine interactions.
A team of Lehigh University researchers led by Professor Muhannad Suleiman is working to develop floating offshore wind platforms that can harness both wind and wave energy. The goal is to create more efficient and resilient structures that can withstand extreme weather conditions.
The study identified two main reasons for the amplification of tsunamis: a lens effect due to shallow waters and wave refraction, as well as diffraction at capes and multiple reflections. These local conditions contributed to the high tsunamis in Iida Bay.
A new design for a liquid–solid triboelectric nanogenerator has increased the amount of wave energy that can be harvested from ocean waves. By repositioning the electrode, researchers were able to boost the device's conversion efficiency 2.4 times, demonstrating its potential for larger-scale applications.
Researchers developed a multifunctional elastic metasurface that can be freely configured for practical applications. The metasurface harnesses elastic waves in piezoelectric components, increasing electricity production efficiency and overcoming limitations in theoretical analysis.
The MIT-designed 'architected' reef could dissipate more than 95% of incoming wave energy using a fraction of the material needed, reducing erosion and flooding. The cylindrical structure's unique design leverages turbulence to efficiently break waves, making it a potential solution for coastal protection in various water conditions.
Scientists at the University of Copenhagen and University of Victoria have developed an AI formula to predict rogue waves, which can split apart ships and damage oil rigs. The new knowledge can make shipping safer by identifying the likelihood of being struck by a monster wave at sea.
Researchers from the University of Córdoba have developed an alternative to traditional batteries, using a cylindrical tank immersed in water to store and release energy. The iOWC system utilizes hydrostatic pressure to compress air and expand it through a turbine, generating clean energy.
A new study by Colorado State University reveals that seismic signals show a growing intensity in ocean waves since the late 20th century, attributed to global warming. The research indicates that storms are becoming more intense and wave energy is increasing globally, posing a serious threat to coastal ecosystems and infrastructure.
Researchers from FAU's College of Engineering and Computer Science employ a computer-vision deep learning technique to analyze wall-bounded turbulent flows. They successfully identify the sources of extreme events in a data-driven manner, providing new insights into non-linear relationships in fluid dynamics simulations.
Astronomers have created the first computer simulations showing how convection in the cores of massive stars generates waves that result in flickering starlight. The effect is different from the visible twinkling of stars in the night sky and could be observed with improved telescopes.
A Northwestern University-led team developed the first 3D simulations of energy rippling from a massive star's core to its outer surface. The researchers determined how much stars should innately twinkle and converted these waves into sound waves, allowing listeners to hear both what the insides of stars and their twinkling sound like.
The UK Research and Innovation has awarded £53 million in funding to six research centers to boost knowledge, create innovative green technologies, and reduce energy demand. The focus is on developing game-changing ideas to improve domestic, industrial, and transport energy systems.
The £7 million CoTide project aims to develop scalable tidal stream energy, making renewable power cheaper, more reliable, and scalable. The initiative will create integrated engineering tools and solutions to overcome technical challenges in harnessing ocean tides as a clean energy source.
Researchers used drones to monitor Waikīkī Beach, finding that wave energy from south swells and trade-wind generated waves drive erosion and accretion. The studies provide insights into beach behavior and help inform management of the coastline for ecological, societal, and economic sustainability.
Harvard researchers develop new method to extend the lifetime of organic molecules in organic aqueous flow batteries, improving their commercial viability. The approach works by periodically providing a shock to revive decomposed molecules, resulting in a net lifetime increase of up to 260 times.
Scientists have found that axisymmetric 'spike waves' can exceed previously thought limits on ocean wave height, leading to significant implications for maritime safety. The new research revealed the fundamental mechanisms behind highly directional and crossing waves becoming much larger than others.
Tel Aviv University researchers develop innovative model that explains wave formation, tested in complex experiments. The model takes into account all unstable harmonics and limitations of previous models, providing high reliability for describing physical situation.
Researchers propose a new way to store renewable energy by speculatively performing computations in large data centers when energy is abundant, and retrieving the results later. This approach offers better efficiency than traditional battery storage methods and could reduce greenhouse gas emissions.
Researchers discovered a connection between earthquake characteristics and tsunami size, finding that shallow rupture can produce larger tsunamis. This study suggests reevaluating the use of earthquake magnitude in estimating tsunami threats.
A new Stanford University study finds that an energy system powered by wind, water, and solar with storage can avoid blackouts, lower energy requirements, and consumer costs. The study also predicts creating millions of jobs and improving people's health while reducing land requirements.
The Centre for Doctoral Training in Sustainable Management of UK Marine Resources (SuMMeR CDT) will train 50 interdisciplinary PhD students to sustainably manage the UK's coasts and seas. The program focuses on subjects ranging from marine sciences to law, health, education, and economics.
Researchers have discovered a way to harness hot helium ash to drive rotation in fusion reactors, reducing instabilities and turbulence. By capturing the energy of hot fusion ash via alpha channeling, plasma rotation can be stabilized, leading to improved performance and reduced operating costs.
Researchers have developed a flexible triboelectric nanogenerator that mimics the movement of seaweed to efficiently convert surface and underwater waves into electricity. The device has been shown to generate power even at low water pressures, making it suitable for powering marine sensors in coastal zones.
Researchers at RMIT University have developed a wave energy converter that doubles the power harvested from ocean waves, overcoming technical challenges and unlocking vast untapped potential. The dual-turbine design is cost-effective and requires no special syncing technology.
The Mutriku wave power plant has been in operation since 2011 and generates electricity continuously to the grid. A new study found that while wave energy increases due to climate change, the plant's energy production remains constant due to its regulation system.
The WavE-Suite project aims to overcome challenges in survivability of wave energy converters using a novel numerical modelling suite. The project combines machine learning techniques for more accurate and efficient simulations, enabling engineers to design reliable and economically viable devices.
Researchers at CUHK have developed a water-tube-based triboelectric nanogenerator (WT-TENG) for harnessing irregular and low-frequency environmental energy, such as ocean waves. The device generates high output volumetric charge density, reaching 9 mC/m3, and can be easily combined to create larger units for increased power generation.
A new report by the Pacific Northwest National Laboratory suggests that marine renewable energy devices are unlikely to cause harm to marine animals or environments. The study found that small numbers of operational devices may not significantly affect marine ecosystems, but further research is needed to confirm this.
A new study by Stanford researchers suggests that park-like tsunami defenses, featuring strategically arranged green hills along coastlines, can provide an effective alternative to towering seawalls. These designs prioritize coastal access, ecological function, and community well-being while offering improved risk mitigation benefits.
Researchers have developed a strategy for using floating ocean devices to provide emergency electricity to affected areas, potentially reducing recovery time. The new approach uses variational calculus to optimize the deployment of multiple wave energy devices in a daisy chain configuration.
Researchers at Portland State University will study a novel method of generating electricity from ocean waves using adjustable magnetic springs. The goal is to create cost-effective and smaller devices that can harness wave energy more efficiently.
A new wave energy technology developed by University of Edinburgh and Italian engineers uses flexible rubber membranes to generate electricity from wave motion. The device has the potential to replace conventional designs and produce clean energy for thousands of homes, with potential deployment in Scottish waters within decades.
Researchers found a direct association between ocean warming and increased wave energy globally. The study revealed a long-term trend of growing wave energy, particularly during extreme storm seasons, with devastating impacts on coastal areas.
Researchers found that wave energy converters did not take full advantage of available energy, especially during extreme events, and their design needs to be adapted to handle increasing ocean activity. The study suggests a 40% increase in marine energy over the last century, with the largest increase occurring in the last 20 years.
Researchers from Lomonosov Moscow State University are developing a web-atlas of available wind and wave energy in the coastal zones of Russia's 13 seas. The project aims to improve the stability and reliability of renewable energy sources, providing insights for the design of hybrid power stations.
Researchers found that storm waves in Ireland moved giant boulders up to 620 tons, shifting them four times the size of a house. The study provides direct evidence that storm waves can move such large objects, contradicting previous assumptions only tsunamis could do so.
A study suggests that massive boulders in the Bahamas were transported by hurricanes during the Last Interglacial period, increasing risk of erosion with rising sea levels. The research highlights the potential impact of climate change on coastal environments.
Sandia engineers have designed a control system that doubles the power absorbed by wave energy converters, making electricity produced from wave energy less expensive. The team applied robotics and aerospace engineering design principles to refine how a wave energy converter moves and responds in the ocean.
Scientists have discovered that waves in lakes can generate microseismic signals that can reveal subsurface geology and track ice cover duration. By analyzing these signals, researchers can create a seismic 'CT scan' of the Earth, providing valuable insights into geological structures.
Okinawa Institute of Science and Technology (OIST) researchers have developed turbines to convert ocean wave energy into clean, renewable electricity. By harnessing the power of Kuroshio ocean currents and waves, they aim to generate 10 gigawatts of energy, equivalent to 10 nuclear power plants.
Researchers at Oregon State University have developed a method to analyze sediment and animal life on the ocean floor, reducing the need for time-intensive identification work. The study found relationships between sediment characteristics and marine animal life consistent across eight sites off the Pacific Northwest coast.
Researchers at MIT have developed a general theory that connects gravity waves and acoustic waves, finding that surface-gravity waves can generate powerful acoustic-gravity waves under certain conditions. This energy exchange could play a role in water transport, carbon dioxide distribution, and sustaining a healthy marine environment.
The EOLO group has developed a novel method for predicting wave energy up to 16 hours in advance, using a combination of historical measurements and machine learning algorithms. This technique has shown higher reliability than existing methods for forecasting swell and storms in the Bay of Biscay.
A team of NYU and University of Barcelona physicists developed a method to control spin waves in magnetic materials, which can efficiently transfer energy and information. The breakthrough has the potential to improve information processing and reduce energy consumption.
Researchers at the University of Exeter have developed new methods to accurately measure and predict wave conditions in test sites. This breakthrough could significantly enhance wave energy production, a key player in the quest for sustainable renewable energy.
Researchers at New York University have created a method to generate short-wavelength spin waves, which can efficiently transfer energy and information in magnetic materials. This breakthrough has the potential to improve communication and electronic devices by offering faster and more energy-efficient alternatives to traditional elect...
Researchers from UCLA and international partners use a unique alignment of six spacecraft to measure the release of magnetic energy close to Earth. They discover that this energy is stored in Earth's magnetosphere and released through a process called magnetic reconnection, which powers Earth's auroras and radiation belts.