Optical Properties of an IR-Transparent Prismatic Plate in Exposure to the Thermal Radiation and its Application as a Radiation Rectifier

TL;DR

This paper investigates the optical properties of an IR-transparent prismatic plate, demonstrating its ability to control thermal radiation transfer and achieve thermal equilibrium with a temperature gradient, using 3D ray-tracing simulations.

Contribution

It introduces a novel application of a prismatic plate as a radiation rectifier by analyzing its bi-transmittance properties under thermal radiation exposure.

Findings

Prismatic plate exhibits bi-transmittance for thermal radiation.

Thermal equilibrium with a temperature gradient is achievable using the prismatic window.

3D ray-tracing effectively models the optical behavior of the prismatic sheet.

Abstract

Optical properties of a prismatic transparent plate and its effects on thermal radiation heat transfer are studied. A 3D ray-tracing numerical method is used to prove the bi-transmittance property of the prismatic sheet when it is exposed to thermal radiation in two opposite directions. It is shown that in the present of a prismatic window a thermal equilibrium with a temperature gradient between two sources is possible.