Passive Thermal Control Design Methods, Analysis, Comparison, and Evaluation for Micro and Nanosatellites Carrying Infrared Imager

Advancements in satellite technologies are increasing the power density of electronics and payloads. When consumption increases within a limited volume, waste heat generation also this necessitates proper efficient thermal management system. Mostly, micro nanosatellites use passive control methods because low cost, no additional requirement, ease implementation, better performance. Passive lack ability to meet certain requirements on larger smaller platforms. This work numerically studies performance some techniques such as straps, surface coatings, multi-layer insulation (MLI), radiators for 6U small configuration carrying mid-wave infrared (MWIR) payload whose temperature needs be cooled down 100K. Infrared (IR) imagers require temperature, level cooling is entirely dependent wavelengths. These instruments used various applications including Earth observations, defence, imaging at IR To achieve these temperatures instruments, micro-cryocooler considered study. Most higher dissipating elements mounted exchanger plate, which thermally coupled an external radiator using straps pipes. The effects size, orbital inclinations, space environments, attitude with respect sun, coatings discussed elaborately configuration.