Articles tagged with Jet Engines
Researchers developed a reduced order model that accelerates calculations by identifying key features in flow data, enabling faster testing of geometry parameters for efficiency gains. The team plans to make their extensive database and model available online for other research groups.
Southwest Research Institute (SwRI) is expanding its heat exchanger testing capabilities to include megawatt-scale performance evaluations. This move addresses a significant market gap for high-heat transfer rates involving high-temperature and -flowrate applications in data centers, defense, and other fields.
Engineers are adapting jet engines to run on hydrogen fuel, addressing vibrations concerns that could damage the combustion chamber. The researchers' experiments provide a basis for designing efficient hydrogen engines, paving the way for climate-neutral flight.
New studies from Chalmers University of Technology suggest that hydrogen-powered aircraft could meet the needs of 97% of intra-Nordic flights and 58% of Nordic passenger volume by 2045. A novel heat exchanger technology has shown promise in reducing fuel consumption by almost eight percent.
A new study found that planes swallowing more dust waiting to land poses a risk of engine wear. The research calculated the quantity of sand and dust swallowed by jet engines at ten major airports in desert regions.
The University of Central Florida is establishing itself as a leader in hypersonics and space propulsion research with substantial new funding from the US Department of Defense. The funding will support the construction of a hypersonic testing facility, flight experiments and further advancements of the technology.
Researchers at Goethe University Frankfurt have found that jet engine lubrication oils are a significant source of ultrafine particles. These tiny particles can penetrate deep into the lungs and trigger inflammatory reactions, potentially contributing to cardiovascular diseases.
A new MIT-developed heat treatment transforms 3D-printed metal microstructure, enabling energy-efficient 3D printing of blades for gas turbines and jet engines. Researchers discovered a way to improve the structure by adding an additional heat-treating step.
A team of scientists has designed a system that uses water, CO2, and sunlight to produce synthetic kerosene, which can power long-haul commercial flights. The design has been implemented in the field, and its efficiency is around 4%, with plans to improve it to over 15%.
Researchers at NIMS and Osaka University successfully fabricate nickel single crystals with minimal crystalline defects, paving the way for widespread use in heat-resistant jet engine components. The technique eliminates grain boundaries, resulting in stronger high-temperature materials.
Researchers have developed a sensor made of sapphire fibre that can withstand temperatures over 2000°C, enabling significant improvements in efficiency and emission reduction in aerospace and power generation. The technology has potential applications in space and fusion power industries.
A team of engineers at the University of Arizona is using machine learning methods to monitor and mitigate defects in additive manufactured metal parts designed for use in extreme environments. The system combines data processing, process optimization, materials analysis, and machine learning to predict defects.
Researchers from Tokyo University of Science developed a computationally quick approach to predict molten droplet solidification on a solid surface. The model simulates the solidification process by considering the droplet behavior and heat transfer between the hotter droplet and cooler surface, replicating experiments with high accuracy.
Researchers created a duplex bond coat approach that extends the life of engine components, protecting them from chemical reactions and water vapor. The new coating system uses ytterbium disilicate and hafnium oxide to create a stable and durable barrier against high temperatures.
Researchers from Nagoya University have developed a new class of super-hard composite materials by adding zirconium atoms to aluminum oxide and tungsten carbide. The resulting materials exhibit exceptionally high bending strengths greater than 2 gigapascals, making them stronger than previous CMCs.
A team of faculty and students are designing innovative technologies to cut noise from supersonic military jets using a 'swirl' technology. By generating rotational motion in the jet exhaust, they aim to reduce noise by three decibels, cutting acoustic power in half.
Researchers at Harvard University developed a micro-robot called HAMR-E that can climb on vertical and upside-down surfaces, allowing for non-invasive inspection of hard-to-reach areas of large machines. The robot uses electroadhesive foot pads and origami ankle joints to navigate complex environments, saving companies time and money.
Japanese scientists have identified a titanium carbide-reinforced alloy that can withstand extreme temperatures and pressures, outperforming existing Nickel-based superalloys. The alloy's high-temperature strength was demonstrated under constant forces in the range of 1400°C-1600°C.
Researchers at Texas A&M University have discovered new smart materials that can work at extremely high temperatures, enabling improved fuel burn efficiency in jet engines. These materials also have the potential to reduce airplane noise over residential areas, offering a promising new application in various industries.
Researchers at Ohio State University have discovered a way to deactivate nano twins in superalloys, strengthening their high-temperature properties. This technique, called phase transformation strengthening, eliminates alloy deformation by half, enabling turbine engines to run cleanly and efficiently.
Researchers at TSU and SB RAS have developed a multi-layered ceramic material with heat resistance of over 3,000 degrees Celsius, targeting the space industry and aircraft engine manufacturing. The new material will provide increased protection during reentry and improve the performance of jet engines.
Scientists developed a new method to understand how volcanic ash interacts with jet engines. The research found that volcanic ash may melt and stick more readily inside engines, leading to severe underestimates of thermal hazard.
Researchers develop empirical model to estimate risks of volcanic ash on jet engines, finding that sand-based tests are unsuitable due to underestimated damage. The new model takes into account the chemical composition of ash, providing a more realistic assessment of aviation hazards.
Ezgihan 'Izzy' Baydar, a UT Arlington aerospace engineering student, has been awarded a NASA fellowship to pursue her research on making air intakes more efficient in jet engines. The three-year fellowship includes $135,000 funding and summer internships at the NASA Glenn Research Center.
Astronomers have discovered a supersonic jet of material from a supermassive black hole at the center of a distant galaxy, resembling an afterburner flow. The jet exhibits bright and dark regions, including regularly spaced areas brighter than the rest, which may provide insight into its formation and power.
The University of Southampton's Optoelectronics Research Centre is developing laser technology to map chemical species and soot in jet engine exhausts, aiming to reduce emissions and optimize combustion processes. The FLITES project will establish a world-leading capability for tomographic imaging of exhaust plumes.
A team of researchers from the University of Copenhagen and Iceland developed a protocol for rapidly providing air traffic authorities with data on volcanic ash risks. The new method can provide safety assessment information in under 24 hours, reducing the difficulty faced by aviation authorities during eruptions.
Researchers have discovered a new class of ceramic coatings that could offer jet engines special protection against volcanic ash damage. The coatings were tested and found to resist damage caused by ash deposits, with one coating offering sufficient protection against small amounts of ash ingested by the engine over time.
Researchers are using magnetic resonance imaging to analyze the mixing of hot and cool air in jet turbines, aiming to optimize bypass design and reduce coolant usage. This technique could lead to significant energy savings and improved performance, potentially slashing development time from years to just hours.
Researchers at Purdue University have developed tiny wireless sensors that can detect impending bearing failure in jet engines, providing critical advance warning to prevent breakdowns. The MEMS technology withstands extreme heat and transmits temperature data wirelessly, enabling early detection of failures.
Researchers at Iowa State University developed a coating technology that improves the heat resistance of turbine blades in jet engines. Rolls-Royce has acquired exclusive rights to commercialize the invention, which is expected to provide significant advantages over existing coatings.
Researchers have developed a coal-based jet fuel, provisionally designated JP900, which produces almost the same Btu as conventional fuels. The fuel has improved flash point, lower viscosity, and higher smoke point, making it suitable for existing engines and interest both commercial and military users.
Researchers at Princeton University developed a new modeling technique that can predict and negate the noise produced by air flowing across a car's sunroof. The technique uses computer simulations to manipulate the air flow and cancel out the acoustic waves, resulting in a quieter aircraft. This innovation has important military applic...
Scientists have created a better thermal insulator by introducing structure on the nanometer length scale in materials. The new nanolaminates exhibit a three times lower thermal conductivity than conventional insulators, due to the strong impediment of heat transfer at the interfaces.
A new sensing device developed by Virginia Tech engineers is set to reduce energy consumption and emissions in various industries. The self-calibrated interferometric/intensity based sensor has several advantages over existing semiconductor pressure sensors, including higher resolution and accuracy.
Researchers developed a model to predict bird flight patterns, enabling pilots to adjust their routes and altitudes. The model can forecast bird locations and altitudes hours in advance, reducing the risk of bird strikes and damage to windshields and turbine engine blades.