Articles tagged with Heat
Researchers at Georgia Tech and collaborators observed interfacial phonon modes, confirming their existence and contribution to heat transfer at interfaces. The discovery opens a new pathway for consideration in engineering thermal conductance for electronics cooling.
Researchers have created a new approach to edit genes within specific bacteria in a community using CRISPR-Cas9, enabling targeted genetic modifications. This technology could be used to track edited microbes and potentially treat diseases like digestive issues or create more resilient crops.
Researchers developed a material that automatically responds to changing temperatures, switching between heating and cooling. The glass can regulate both solar transmission and radiative cooling, reducing energy consumption up to 9.5% or ~330,000 kWh per year.
Scientists developed an all-season smart-roof coating that automatically switches between cooling and heating, outperforming commercial cool-roof systems in energy savings. The technology uses vanadium dioxide to regulate its rate of radiative cooling, overcoming the problem of overcooling in winter.
Residents in eastern US cities experience up to 4.9 degrees Celsius increase in nighttime urban heat stress index, with extra 30 minutes of uncomfortable weather per degree C temperature increase. This effect is more pronounced in the southeastern US, where residents face up to five extra hours of uncomfortable weather during summer.
Researchers at Duke University developed a lightweight material that traps thermal energy when dry but opens tiny vents to let heat escape when a person starts sweating. The material has potential as a patch on clothing to help keep the wearer comfortable, expanding thermal comfort zones by 30%.
Researchers found that flavanols activate brown adipose tissue, causing it to burn calories and produce heat. Long-term consumption of flavanols increased the levels of heat-related proteins in mice, suggesting a potential therapeutic effect against obesity-related diseases.
The study found that the ban of heating oil #6 was effective in reducing fine particles, nitrogen dioxide, and sulfur dioxide levels in NYC. The reductions were independent of other sources of air pollution, suggesting a significant impact on public health outcomes.
The state of Georgia could dramatically reduce its greenhouse gas emissions by using onsite electric power, creating new jobs and a healthier public. CHP systems can be 85-90% efficient, reducing peak demand on the grid and providing ultra-high system efficiencies, cleaner air, and more affordable energy.
Researchers at West Virginia University have developed a wood boiler system that improves bird health and reduces carbon dioxide emissions by drying litter and creating dry heat. The system has the potential to replace propane heating systems in poultry farms, benefiting both animal welfare and the environment.
A new study uses a microspectroscopic technique to measure micro- and nano-sized plastics in steam-disinfected silicone-rubber baby bottle nipples. The research found that these fine particles can be released into the environment and ingested by babies, posing health risks.
A study at the University of Plymouth found that retrofitting an existing building with a green wall reduced heat loss by 31.4%. The study suggests that living walls can provide significant energy savings and help reduce carbon emissions in existing buildings.
Researchers discovered that naked mole-rats rapidly decrease uncoupling protein 1 (UCP1) in brown adipose tissue to conserve energy in hypoxia. This mechanism may hold secrets for humans to survive and thrive in low-oxygen environments, particularly in relation to diseases like stroke and chronic pulmonary disorders.
Researchers from Utah State University and KAUST found clear acoustic signatures of oil temperature in deep-frying sounds. The unique bubble patterns near the oil surface create distinct noises that vary with heat levels.
Scientists at NTU Singapore develop a new electrochromic window material that can block up to 70% of infrared radiation while allowing 90% of visible light to pass through. The material is designed to be energy-efficient and durable, with improved performance compared to existing technologies.
A life cycle assessment of carbon capture at Amager Bakke incineration plant reveals that the technology reduces CO2 emissions from incineration but decreases electricity production by 50%. The overall net energy efficiency is not affected, but heat output increases by 20%.
Researchers used fusion reactors to test spacecraft heat shield materials, achieving conditions similar to those encountered during high-speed atmospheric entries. The experiments demonstrated improved accuracy in modeling heat shield behavior, offering promise for developing advanced materials necessary for future missions.
Thermal quenches in fusion devices occur when high-energy electrons escape from the core and fly toward the wall, causing a rapid drop in electron temperature. The researchers propose an analytic model of plasma transport that provides new physical insights into the complex topology of 3-D magnetic field lines.
Researchers have created two novel heat recovery systems for LNG ships, boosting energy efficiency by up to 25%. The systems use the organic Rankine cycle (ORC) to recover heat from engine exhaust gas, with substantial improvements in performance depending on fluid combinations.
Researchers examine how heat affects salt and brine in underground tests to refine computer models and inform policymakers about spent nuclear fuel disposal. The understanding gained will help assess the viability of salt beds as a safe storage option for radioactive waste.
Scientists have discovered a way to break the trade-off between thermopower and conductivity in LaTiO3 films, resulting in a hundred-fold increase in power factor. This breakthrough promises to advance thermoelectric materials and make waste heat conversion more efficient.
Researchers develop conductive, wash-durable yarn for wearable heaters using poly(3,4-ethylenedioxythiophene) and poly(4-styrenesulfonate). The treated yarn can distribute heat at a safe operating voltage when sewn into fabric, providing steady warmth even in cold conditions.
Researchers from The University of Electro-Communications and Tokyo University of Agriculture and Technology found that sintering porous media inside heat transfer tubes increases the area available for heat exchange, reducing thermal resistance and enhancing heat transfer performance. Heat transfer in these tubes is five times greater...
Researchers found that young male winter swimmers had better thermoregulation and higher heat loss due to frequent sauna exposure. They also showed increased brown fat tissue activity, particularly in response to cold exposure.
A study by Brazilian researchers warns of extreme heat risks in northern Brazil due to savannization and climate change, posing a threat to human health and productivity. Approximately 12 million people may be exposed to extreme risk of heat stress by 2100, with severe economic implications.
Scientists at UChicago have invented a new thermal insulator with unusual properties. The material, made using an innovative technique, is extremely good at containing heat while also allowing it to be moved in different directions.
Clean geothermal power could become as important as fossil fuels, with new technologies and repurposed oil and gas expertise crucial to its development. Industry leaders emphasize the need for collaboration between geothermal and oil and gas professionals.
A WVU-led research team will test the potential of geothermal energy by drilling three miles into the ground. The project aims to reduce carbon footprint and decrease energy costs for the university, with potential implications for industries across West Virginia.
Berkeley Lab researchers developed a method to increase the efficiency of LED devices by applying mechanical strain to thin semiconductor films. This approach reduces exciton annihilation, allowing for high-performance LEDs even at high brightness levels.
Researchers at UNIST have developed a thermoelectric tube using 3D printing that can effectively convert waste heat into electricity. The new technology has a high thermoelectric performance and is more effective than conventional cuboid-shaped devices.
The Lancet reports that extreme heat is becoming a major health issue, with over 356,000 deaths in 2019 related to heat. Effective cooling strategies are needed to protect vulnerable populations and mitigate climate change.
Scientists at São Paulo State University discovered that compressing paramagnetic salts adiabatically can produce magnetization. The process aligns the particles' spins, resulting in a constant total entropy and magnetized system. This method has potential applications in investigating other interacting systems.
Researchers at TU Wien have invented a new cooling concept that combines thermodynamics and quantum physics to break low-temperature records. By using quantum effects to cool a cloud of ultracold atoms, they achieved temperatures closer to absolute zero than ever before.
A research team developed a novel sensor that can detect and convert infrared light into electrical signals at temperatures up to 100°C. The device eliminates the need for cooling devices, reducing production costs and operating speeds, making it suitable for smartphone and autonomous vehicle applications.
Researchers at Tata Institute of Fundamental Research developed a novel method to capture ultrafast motion of plasma at different transverse locations. The team's experiment shows that different portions of the plasma move in and out at different times, contrary to previous expectations.
Researchers have discovered a new inorganic material with the lowest thermal conductivity ever reported, offering fundamental insights into heat management and waste heat conversion. The material combines two arrangements of atoms that slow down heat transport, resulting in a significant reduction in thermal conductivity.
Texas A&M researchers found that sea otters' muscles use thermogenic leak to generate heat, allowing them to thrive in cold water. This finding explains how otters maintain their high metabolic rate and survive in marine environments.
A study published in Journal of Experimental Biology found that Arctic seabirds are poorly adapted to cope with rising temperatures, leading to increased mortality rates. The researchers discovered that murres have an extremely poor ability to dissipate heat, making them more vulnerable to heat stress.
Thermal waves have been observed in germanium at room temperature, a significant improvement in electronic devices performance. The discovery opens new possibilities for controlling heat through wave-like thermal transport.
Researchers successfully integrate a new ultrahigh thermal-management material into computer chips, reducing heat and increasing energy efficiency. The development outperforms existing materials like diamond and silicon carbide, with temperatures rising to nearly 188 degrees Fahrenheit.
Researchers at Osaka University found that silver nanoparticles induce crystallization in clathrate hydrates, a potential application for latent heat storage materials. The study may lead to improved efficiency in solar energy and heat recovery technologies.
Researchers at ETH Zurich developed a technology to harvest water 24/7 with no energy input, using specially coated glass and a radiation shield. The device can produce up to twice as much water as current passive technologies, with potential for large-scale integration.
Researchers designed a new type of molecular motor that can rotate in picoseconds using the power of a single photon. The motor's speed is significantly faster than existing designs, with potential applications in drug delivery, nanotechnology, and controlling biological processes.
A new study from Aalto University recommends that government subsidies for clean-energy heating be allocated to areas where homeowners can least afford the upfront cost, namely those with lower housing prices. This approach aims to promote energy-efficient heat pumps and reduce carbon emissions in Finland's residential buildings.
Researchers at National Institutes of Natural Sciences have developed an Advanced Multi-Step Brazing (AMSB) technique to jointly fabricate components made of oxide dispersion strengthened copper alloy. The new technique enables the creation of a heat removal component with excellent heat removal performance, surpassing existing records.
Researchers at Tokyo Tech developed a flexible device capable of rapidly increasing temperature of target tissues without tissue burning. The device overcomes limitations of existing heat-generating devices and opens up possibilities for wide clinical scenarios including minimally invasive endoscopic surgery.
Researchers discovered a new electronic property in a specially engineered metal alloy, enabling the manipulation of heat with a magnetic 'switch'. The material, called Weyl semimetal, exhibits unusual electron behavior, generating and absorbing heat to create an energy pump.
Research suggests that heat generated by asteroid impacts could enable aqueous alteration and organic solid formation, increasing the number of potential sources of water and life's origins. The study found that craters over 1km in radius can support organic substance formation within a 2 AU distance from the impact point.
Researchers successfully created amorphous ice similar to interstellar space and on Jupiter's moon Europa, which could help interpret data from future NASA missions. They also developed an envelope system that diverts heat away from buildings and stores it for future use, reducing energy consumption by over 50%. Additionally, scientist...
Researchers at Ohio State University have discovered a single compound that functions as an efficient thermoelectric generator, producing power from waste heat. The compound's unique property allows it to carry both positive and negative charges independently, generating electricity without moving parts.
Dr Martin White's research proposes a two-phase expansion system that can generate up to 28% more power than conventional single-phase systems. The study aims to enhance the performance of Organic Rankine Cycle (ORC) systems for waste heat recovery, reducing environmental footprint in industries such as iron and steel, food, and drink.
Researchers achieved stable partial energy detachment and suppressed material sputtering using Ar and Ne seeding. The study provides a feasible experiment program for maintaining steady-state plasma under high-power long-pulse conditions.
The global temperature rise will increase cooling degree days, leading to a higher energy demand for cooling buildings. In Switzerland, the energy demand for cooling is expected to increase significantly, with potential peaks on hot days.
Researchers at the University of Utah have developed a theoretical method to thermally cloak objects, making them invisible to thermal cameras. Using heat pumps, they can fine-tune heat transfer and mimic heat signatures of different objects.
Researchers found blocking a receptor of neuropeptide Y increases fat metabolism and prevents weight gain in obese individuals. The treatment, BIBO3304, targets peripheral tissues without affecting the brain, offering a potentially safer alternative to current medications.
A new experiment has found that the accuracy of a clock is directly proportional to the amount of heat supplied, with more energy consumed resulting in more accurate timekeeping. This discovery has implications for future technologies and suggests that clocks are constrained by thermodynamics.
Researchers have developed a class of materials that manipulates thermal radiation, allowing for efficient energy conversion systems and improved sensing technologies. By directing heat in specific directions over broad spectra, the new material offers capabilities for imaging, sensing applications, solar heating, waste heat recovery, ...
Researchers from Sandia National Laboratories used 22-foot-wide tethered balloons to collect dust samples, confirming the new solar-power technology's safety. The technology stores heat in heated particles, which can store energy for days or weeks, stabilizing power output.
Researchers discovered that bird blood functions as a central heating system when it is cold, thanks to the presence of mitochondria. The study found that birds produce more heat through their blood cells during winter, challenging the common assumption that shivering and fluffing feathers are the primary methods for thermoregulation.
A South Korean research team has developed a high-efficiency flexible thermoelectric device capable of autonomously generating electricity from body heat. The device features a sponge-like configuration that enhances thermal insulation, allowing it to perform better than existing flexible thermoelectric devices.