Results 31 to 40 of about 313,354 (341)
Thermal radiation at the nanoscale and applications
Applied Physics Letters, 2023 There has been a paradigm shift from the well-known laws of thermal radiation derived over a century ago, valid only when the length scales involved are much larger than the thermal wavelength (around 10 μm at room temperature), to a general framework known as fluctuational electrodynamics that allows calculations of radiative heat transfer for ...
Pierre-Olivier Chapuis +2 more
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New Insights on the Thermodynamic Equilibrium of Black Hole and Thermal Radiation [PDF]
arXiv, 2021 The thermal balance between the black hole and surrounding thermal radiation is an interesting topic. The primordial black hole is a type of black hole formed in the early universe, especially during the thermal radiation period of the early universe. Driven by gravity, thermal radiation will collapse to form a black hole.
arxiv
2D radiation-hydrodynamic simulations of supernova ejecta with a central power source [PDF]
, 2020 We present the results of two-dimensional radiation-hydrodynamic simulations of expanding supernova ejecta with a central energy source. As suggested in previous multi-dimensional hydrodynamic simulations, a sufficiently powerful central energy source can blow away the expanding supernova ejecta, leading to efficient mixing of stratified layers in the ...
arxiv +1 more source
THERMAL RADIATION IN SPARK DISCHARGE
Problems of Atomic Science and Technology, 2021 The work is devoted to numerical study on thermal radiation in spark discharge. The influence of radiative thermal conductivity on the expansion of the spark channel has been established. The study of the effect of value of the capacitance of the discharge capacitor on the energy emitted by the discharge has been carried out.
Korytchenko, K. +5 more
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Towards experimentally studying some puzzles of Hawking radiation [PDF]
Gen. Relativ. Gravit. (2014) 46, 1779, 2013 We investigate the features of the non-corrected thermal (non-thermal) spectrum and the quantum corrected thermal (non-thermal) spectrum. We find that: (i) using the quantum corrected non-thermal spectra, the black hole radiation as tunneling is an entropy conservation process, and thus black hole evaporation process is unitary; (ii) there are no ...
arxiv +1 more source
On the integral law of thermal radiation [PDF]
Russian Journal of Mathematical Physics, 2014 23 pages, 1 ...
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Flexible and Accurate Simulation of Radiation Cooling with FETD Method
Scientific Reports, 2018 Thermal management and simulation are becoming increasingly important in many areas of engineering applications. There are three cooling routes for thermal management, namely thermal conduction, thermal convection and thermal radiation, among which the ...
Huan Huan Zhang +3 more
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Thermodynamic Limits of Energy Harvesting from Outgoing Thermal Radiation [PDF]
, 2017 We derive the thermodynamic limits of harvesting power from the outgoing thermal radiation from the ambient to the cold outer space. The derivations are based on a duality relation between thermal engines that harvest solar radiation and those that harvest outgoing thermal radiation.
arxiv +1 more source
Applied Sciences, 2023 Li-ion batteries play a key role in energy storage and conversion in engineering systems such as electric vehicles and grid energy storage, with critical impact on electrification and storage of renewable energy.
Liwen Zhang +4 more
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Reduction of temperature in silicon photovoltaic module using thermal radiation coating
MATEC Web of Conferences, 2016 The temperature of solar cells increases under the actual operating conditions, and the conversion efficiency of solar cells decreases with increasing temperature.
Nakamura Satoshi, Nishioka Kensuke
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