VO₂-Based Spacecraft Smart Radiator with High Emissivity Tunability and Protective Layer.

ABSTRACT: In the extreme space environment, spacecraft endure dramatic temperature variations that can impair their functionality. A VO₂-based smart radiator device (SRD) offers an effective solution by adaptively adjusting its radiative properties. However, current research on VO₂-based thermochromic films mainly focuses on optimizing the emissivity tunability (Δε) of single-cycle sandwich structures. Although multi-cycle structures have shown increased Δε compared to single-cycle sandwich structures, there have been few systematic studies to find the optimal cycle structure. This paper theoretically discusses the influence of material properties and cyclic structure on SRD performance using Finite-Difference Time-Domain (FDTD) software, which is a rigorous and p

SUBMITTER: Xu Q 

PROVIDER: S-EPMC11357278 | biostudies-literature | 2024 Aug

REPOSITORIES: biostudies-literature