Effects of Material Emissivity on the Radiative Characteristics of Solid Surface

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Abstract:

Radiation leaving the solid surface provides an important reference for detection in both military and civilian areas. In this paper, total radiation leaving a solid plate is calculated with different emissivities considering the environment radiation. The results prove that a lower emissivity of the surface material has a stronger reflection of irradiance from the Sun, and therefore may enhance the total radiation leaving the plate. This is different from most cases where a lower emissivity always leads to a smaller radiation effects. The emissivity of material coated to the solid surface should be properly chosen according to the detailed surrounding environment as well as the radiative properties of the solid parts in order to achieve a minimum radiation effects.

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38-41

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January 2020

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© 2020 Trans Tech Publications Ltd. All Rights Reserved

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