Speaker
Description
The NUSES (Neutrino and Seismic Electromagnetic Signals) is a mission to explore new scientific and technological pathways for future space-based detectors which aims to advance the study of high and low-energy cosmic radiations using two primary payloads: Zire, which detects gamma rays and charged particles, and Terzina, a telescope designed to test new observation techniques for studying ultra-high-energy cosmic rays and neutrino astronomy by detecting atmospheric Cherenkov radiation. Yet another, the WINK is a pioneering project for gamma ray detection in space which is being developed for a pathfinder mission onboard the ESA Space Rider vehicle. This study investigates the thermal management strategies and thermal expansion effects in these multiple space missions, focusing on the Zirè payload, Low-Energy Module (LEM), and the overall NUSES satellite, along with preliminary thermal analysis for the WINK Space Rider project. Using COMSOL Multiphysics, comprehensive thermal simulations were conducted to ensure the thermal stability and reliability of satellite components under varying conditions. For the Zirè payload, simulations for the electronic box and detector system demonstrated stable thermal performance and effective heat dissipation. The LEM's analysis emphasized the importance of material selection, power consumption, and surface emissivity in maintaining optimal temperatures. A holistic thermal model for the NUSES satellite ensured safe operational temperatures for integrated payloads, simulated in orbit. Preliminary results for the WINK project highlighted the impact of thermal decoupling and contact resistance on temperature regulation. Additionally, the potential effects of thermal expansion were assessed, showing that displacements were within acceptable tolerances for the materials used, ensuring structural integrity. These findings validate the effectiveness of the implemented thermal management strategies, crucial for the reliable performance of satellite missions in space.
