Thermal radiation ≈ Thermal radiation
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Scalable-manufactured randomized glass-polymer hybrid metamaterial for daytime radiative cooling Open
The lazy way to keep cool in the sun Passive radiative cooling requires a material that radiates heat away while allowing solar radiation to pass through. Zhai et al. solve this riddle by constructing a metamaterial composed of a polymer l…
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Radiative human body cooling by nanoporous polyethylene textile Open
Thermal management through personal heating and cooling is a strategy by which to expand indoor temperature setpoint range for large energy saving. We show that nanoporous polyethylene (nanoPE) is transparent to mid-infrared human body rad…
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Radiative Cooling: Principles, Progress, and Potentials Open
The recent progress on radiative cooling reveals its potential for applications in highly efficient passive cooling. This approach utilizes the maximized emission of infrared thermal radiation through the atmospheric window for releasing h…
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Radiative cooling of solar absorbers using a visibly transparent photonic crystal thermal blackbody Open
Significance The coldness of the universe is an enormous but strikingly underexploited thermodynamic resource. Its direct utilization on Earth therefore represents an important frontier for renewable energy research. In many applications, …
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A dual-mode textile for human body radiative heating and cooling Open
Dual-mode textiles made of nanoPE provide both cooling and heating, which helps humans adapt to larger temperature changes.
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High-temperature infrared camouflage with efficient thermal management Open
High-temperature infrared (IR) camouflage is crucial to the effective concealment of high-temperature objects but remains a challenging issue, as the thermal radiation of an object is proportional to the fourth power of temperature ( T 4 )…
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Nanophotonic control of thermal radiation for energy applications [Invited] Open
The ability to control thermal radiation is of fundamental importance for a wide range of applications. Nanophotonic structures, where at least one of the structural features are at a wavelength or sub-wavelength scale, can have thermal ra…
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Structured thermal surface for radiative camouflage Open
Thermal camouflage has been successful in the conductive regime, where thermal metamaterials embedded in a conductive system can manipulate heat conduction inside the bulk. Most reported approaches are background-dependent and not applicab…
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Axion-Field-Enabled Nonreciprocal Thermal Radiation in Weyl Semimetals Open
Objects around us constantly emit and absorb thermal radiation. The emission and absorption processes are governed by two fundamental radiative properties: emissivity and absorptivity. For reciprocal systems, the emissivity and absorptivit…
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Magneto-hydrodynamic flow and heat transfer of a hybrid nanofluid in a rotating system among two surfaces in the presence of thermal radiation and Joule heating Open
In this paper, the researchers explore heat transfer and magneto-hydrodynamic flow of hybrid nanofluid in a rotating system among two surfaces. The upper and lower plates of the system are assumed penetrable and stretchable, respectively. …
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Manipulating metals for adaptive thermal camouflage Open
Adaptive thermal camouflage devices based on manipulating metals show multiple and excellent camouflaging capabilities.
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Near-field radiative thermal transport: From theory to experiment Open
Radiative thermal transport via the fluctuating electromagnetic near-field has recently attracted increasing attention due to its fundamental importance and its impact on a range of applications from data storage to thermal management and …
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Near-field radiative heat transfer in many-body systems Open
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Nonlinear thermal radiation effect on magneto Casson nanofluid flow with Joule heating effect over an inclined porous stretching sheet Open
In this paper, mixed convection on MHD flow of casson nanofluid over a non-linearly permeable stretching sheet has been investigated and analyzed numerically. The effects of thermal radiation, chemical reaction, heat generation/absorption,…
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Numerical investigation for rotating flow of MHD hybrid nanofluid with thermal radiation over a stretching sheet Open
This research investigates the heat and mass transfer in 3-D MHD radiative flow of water based hybrid nanofluid over an extending sheet by employing the strength of numerical computing based Lobatto IIIA method. Nanoparticles of aluminum o…
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Broadband directional control of thermal emission Open
Broadband thermal beaming Thermal radiation emits over a wide range of wavelengths and over a wide range of angles. Xu et al. constructed a material that allows a range of wavelengths to emit over a much narrower range of angles. This prop…
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All-weather thermochromic windows for synchronous solar and thermal radiation regulation Open
Adaptive control of solar and thermal radiation through windows is of pivotal importance for building energy saving. However, such synchronous passive regulations are challenging to be integrated into one thermochromic window. Here, we dev…
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Thermal radiation impact on MHD heat transfer natural convective nano fluid flow over an impulsively started vertical plate Open
A numerical model is employed for the nanofluid flow and heat transfer from an infinite vertical plate in the existence of a magnetic field, thermal radiation and viscous dissipation. The solution of the basic governing equations was obtai…
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Magnetohydrodynamic Nanofluid Natural Convection in a Cavity under Thermal Radiation and Shape Factor of Nanoparticles Impacts: A Numerical Study Using CVFEM Open
In this study, the natural convection of a magnetohydrodynamic nanofluid in an enclosure under the effects of thermal radiation and the shape factor of nanoparticles was analyzed numerically using the control-volume-based finite element me…
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A <i>Janus</i> emitter for passive heat release from enclosures Open
A thermal emitter with selective and broadband emission on different sides can mitigate greenhouse effect in hot enclosures.
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Hall Current and Soret Effects on Unsteady MHD Rotating Flow of Second-Grade Fluid through Porous Media under the Influences of Thermal Radiation and Chemical Reactions Open
The unsteady MHD free convection heat and mass transfer flow of a viscous, incompressible, and electrically conducting fluid passing through a vertical plate embedded in a porous medium in the presence of chemical reactions and thermal rad…
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Radiation and chemical reaction effects on MHD Casson fluid flow past an oscillating vertical plate embedded in porous medium Open
Analytic expression for unsteady free convective hydromagnetic boundary layer Casson fluid flow past an oscillating vertical plate embedded through porous medium in the presence of uniform transverse magnetic field, thermal radiation and c…
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Solar radiation effects on MHD stagnation point flow and heat transfer of a nanofluid over a stretching sheet Open
The aim of this study is investigation of solar radiation influences on two-dimensional stagnation-point flow of nanofluid over a stretching sheet. The magnetic field is considered and the nonlinear Rosseland approximation is applied for t…
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Magnetic field control of near-field radiative heat transfer and the realization of highly tunable hyperbolic thermal emitters Open
We present a comprehensive theoretical study of the magnetic field dependence\nof the near-field radiative heat transfer (NFRHT) between two parallel plates.\nWe show that when the plates are made of doped semiconductors, the near-field\nt…
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Natural convection and thermal radiation influence on nanofluid flow over a stretching cylinder in a porous medium with viscous dissipation Open
The purpose of the present work is to examine the collective influence of thermal radiation and convection flow of Cu-water nanofluid due to a stretching cylinder in a porous medium along with viscous dissipation and slip boundary conditio…
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Study of radiative heat transfer in Ångström- and nanometre-sized gaps Open
Radiative heat transfer in Ångström- and nanometre-sized gaps is of great interest because of both its technological importance and open questions regarding the physics of energy transfer in this regime. Here we report studies of radiative…
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Persistent Directional Current at Equilibrium in Nonreciprocal Many-Body Near Field Electromagnetic Heat Transfer Open
We consider the consequence of nonreciprocity in near-field heat transfer by studying systems consisting of magneto-optical nanoparticles. We demonstrate that, in thermal equilibrium, a nonreciprocal many-body system in heat transfer can s…
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A dual-selective thermal emitter with enhanced subambient radiative cooling performance Open
Radiative cooling is a zero-energy technology that enables subambient cooling by emitting heat into outer space (~3 K) through the atmospheric transparent windows. However, existing designs typically focus only on the main atmospheric tran…
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Giant heat transfer in the crossover regime between conduction and radiation Open
Heat is transferred by radiation between two well-separated bodies at temperatures of finite difference in vacuum. At large distances the heat transfer can be described by black body radiation, at shorter distances evanescent modes start t…
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Light Emission by Nonequilibrium Bodies: Local Kirchhoff Law Open
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