A solution for a “vibration-free” Joule-Thomson cooler using a sorption compressor is presented to answer the needs of potential future Earth Observation IR missions with low micro-vibration levels requirements from the European Space Agency.
The adopted solution includes a closed cycle J-T cooler, using nitrogen as working fluid with an expected cooling power of $1.5$ W @ $80$ K. The fluid circulation is achieved by cycles of adsorption/desorption using metal organic framework sorbent materials.
A detailed design and manufacturing of an elegant breadboard model based on the various stringent requirements (temperature range, lifetime, consumption etc.) is shown.
The characterization and validation of the vibration-free cooler components was already carried out: preliminary results and its engineering challenges are presented.
This work was supported by ESA contract 4000114171/15/NL/KM and by FCT (Portugal) under contracts UID/FIS/04559/2013, IF/01016/2014, SFRH/BPD/103533/2014, FCT/MCTES, UID/QUI/50006/2013 and PT2020, POCI-01-0145-FEDER-007.