Near-Field Thermal Radiation Between Mie Resonance-Based Metamaterials

ASME 2012 Third International Conference on Micro/Nanoscale Heat and Mass Transfer ◽

10.1115/mnhmt2012-75009 ◽

2012 ◽

Author(s):

Mathieu Francoeur ◽

Soumyadipta Basu ◽

Spencer J. Petersen

Keyword(s):

Heat Transfer ◽

Radiative Heat Transfer ◽

Radiative Heat ◽

Near Field ◽

Radiative Properties ◽

Surface Polariton ◽

Conversion Technologies ◽

First Time ◽

Vacuum Gap ◽

Sub Wavelength

Near-field radiative heat transfer between dielectric-based metamaterials separated by a sub-wavelength vacuum gap is analyzed. Metamaterials made of silicon carbide spherical inclusions within a dielectric host medium of potassium bromide are considered. We show for the first time that surface polariton mediated near-field radiative heat transfer in both TE and TM polarizations may occur between dielectric-based structures. The results presented in this work also demonstrate that it is possible to engineer materials with designer radiative properties, which is crucial in many emerging energy conversion technologies.

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Identification of radiative heat transfer parameters in multilayer thermal insulation of spacecraft

International Journal of Numerical Methods for Heat &amp Fluid Flow ◽

10.1108/hff-03-2016-0136 ◽

2017 ◽

Vol 27 (3) ◽

pp. 598-614 ◽

Cited By ~ 4

Author(s):

Aleksey V. Nenarokomov ◽

Leonid A. Dombrovsky ◽

Irina V. Krainova ◽

Oleg M. Alifanov ◽

Sergey A. Budnik

Keyword(s):

Heat Transfer ◽

Theoretical Model ◽

Thermal Insulation ◽

Radiative Heat Transfer ◽

Radiative Heat ◽

Near Field ◽

Radiative Properties ◽

Problem Solution ◽

Content Type ◽

Field Effects

Purpose The purpose of this study is to optimize multilayer vacuum thermal insulation (MLI) of modern high-weight spacecrafts. An adequate mathematical simulation of heat transfer in the MLI is impossible if there is no available information on the main insulation properties. Design/methodology/approach The results of experiments in thermo-vacuum facilities are used to re-estimate some radiative properties of metallic foil/metalized polymer foil and spacer on the basis of the inverse problem solution. The experiments were carried out for the sample of real MLI used for the BP-Colombo satellite (ESA). The recently developed theoretical model based on neglecting possible near-field effects in radiative heat transfer between closely spaced aluminum foils was used in theoretical predictions of heat transfer through the MLI. Findings A comparison of the computational results and the experimental data confirms that there are no significant near-field effects between the neighboring MLI layers. It means that there is no considerable contradiction between the far-field model of radiative transfer in MLI and the experimental estimates. Originality/value An identification procedure for mathematical model of the multilayer thermal insulation showed that a modified theoretical model developed recently can be used to estimate thermal properties of the insulation at conditions of space vacuum.

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