Articles tagged with Heat Transmission
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Researchers found that heat transfer values increase dramatically at distances less than ten nanometres, exceeding theoretical predictions by a factor of one hundred. This phenomenon challenges current understanding of heat transfer in the nanometre range.
Researchers at Pohang University of Science & Technology experimentally demonstrated the existence of nanometer-sized liquid clusters in supercritical fluids, overturning the prevailing notion of a single phase. These clusters persisted for up to an hour and have significant implications for industrial processes and natural environments.
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.
Tina Rost will use a $800,000 NSF CAREER award to control the disorder in high-entropy ceramics, making them stronger and more heat-resistant. Her team aims to develop new materials with tailored electrical, magnetic, and mechanical properties using machine learning-enhanced analysis.
Researchers have developed a new material, coronene-Br2 NDA cocrystal, which converts solar heat into electricity with an exceptional photothermal conversion efficiency of 67.2% under 808 nm irradiation. The material is integrated into a thermoelectric generator to achieve high-performance solar-thermoelectric energy harvesting.
Researchers from Indian Institute of Technology developed bifacial perovskite solar cells with a novel NiO/Ag/NiO transparent electrode, achieving high efficiency, durability, and infrared transparency. The cells demonstrated impressive power conversion efficiencies and high bifaciality factors.
Researchers have designed a thermochromic smart window that can regulate temperature, reducing energy consumption by 10-50 MJ/m2. The device offers high visible transmissivity and broadband infrared modulation, enabling all-season energy savings.
A team of Rice University scientists has developed a coating that suppresses thermal emissions from hot windows while remaining transparent enough to capture thermal radiation from objects behind the window. This breakthrough enables clear thermal imaging at high temperatures, with potential applications in industries such as chemical ...
A new thermochromic hydrogel design can regulate both solar transmission and rapid visible-light stealth at any temperature, with potential applications in energy-efficient windows, military equipment, and anti-counterfeiting. The innovation enables fast response times of just 1 second.
Researchers developed a novel approach to regulate temperature based on gold structure concentration, improving spin wave transfer efficiency. This innovation has promising potential for future applications using spin waves and addresses the persistent issue of heat generation in electronic devices.
Scientists have developed a method to control heat transfer in graphite crystals, enabling efficient thermal management in electronic components. The discovery uses concepts from fluid dynamics to manipulate phonons, or quasiparticles that propagate through solid-state crystals.
A team of researchers discovered a class of materials that mimic the behavior of axons by spontaneously amplifying electrical pulses. These materials can harness internal instabilities to create spiking behavior and amplify signals, potentially leading to more efficient computing and artificial intelligence.
Researchers have found that temperature can affect mosquito longevity, infection time, and disease transmission. The study suggests that climate warming may increase malaria transmission in some areas but reduce it in others.
Researchers demonstrate how a simple mirror design can amplify radiative cooling processes for buildings. The mirror structure effectively guides thermal radiation towards the most transmissive portion of the atmosphere, increasing cooling power.
A new window coating developed by the University of Notre Dame's Tengfei Luo and his team maintains functionality and efficiency regardless of the sun's position in the sky. The coating reduces air-conditioning cooling costs by more than one-third in hot climates.
Researchers at UNIST have developed a method to measure nanometer-sized samples within a transmission electron microscope, utilizing nano-thermometers based on cathodoluminescence spectroscopy. The technique offers improved accuracy and spatial resolution compared to conventional methods.
A Nagoya University research team discovered two distinct thermosensory pathways in the brain that transmit temperature information to different areas of the forebrain. Blocking one pathway was found to impair a rat's ability to avoid heat, while blocking another impaired its ability to avoid cold.
Researchers at the University of Virginia School of Medicine have successfully engineered a material that can conduct electricity with zero resistance, paving the way for revolutionary technologies. The breakthrough uses DNA to guide chemical reactions, overcoming a long-standing challenge in materials science.
Researchers have developed a genetically encoded fluorescent nanothermometer that measures temperature gradients within human cells at unprecedented precision. This technology has the potential to test long-contentious medical hypotheses and inspire drug development.
Concentrated solar power (CSP) plants use wet cooling methods to dissipate waste heat, but this can lead to significant water loss. A new study developed a radiative cooling system with cold storage that reduces water consumption by up to 85% in hot regions.
Geoff Wehmeyer has been awarded a National Science Foundation CAREER Award to deepen understanding of nanoscale heat transfer and improve device performance. He will use scanning transmission electron microscopy nano-thermometry experiments to better understand interfacial heat transport.
Researchers create intelligent material that automatically controls heat transmission, enabling thermal insulation at low temperatures while dissipating excess heat during overheating. The study reveals a promising model for building thermal fields, providing new avenues for designing smart reactors for green chemical industries.
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.
Researchers at Oak Ridge National Laboratory have discovered a new mechanism for heat transfer in solids, supported by Einstein's 1911 theory. This 'heat-hopping' process occurs in thermal insulators and may be present in other crystalline solids.