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LDO-ID
2013-04-04-01
Title
Passive cooling of the PRISMA hyper-spectral camera in LEO
Abstract
"PRISMA is an ASI mission aiming at in-orbit imaging capabilities from LEO: the Payload is designed for the acquisition of Earth hyper-spectral and panchromatic images and will be ready to fly in 2013. The Thermal Control System of the payload, whose key element needs to be cooled at cryogenic temperature of 180 K, is passive. Passive cooling is the result of a trade-off between thermal control performance and its robustness. The LEO environment is very demanding for such a passive cooling; for this reason the detailed design has been focussed on three aspects: the passive cooler design- including its shielding and multiple reflections, the heat transport device selection and testing- an ethane heat pipe, the heat leak control by means of intermediate cooling stages. The thermal design has been numerically analysed, verified against modelling parameters uncertainties and its fundamental elements have been tested."
Authors
Molina Marco, Bini Alessandro, Meini Marco, Formaro Roberto, Battazza Fabrizio
Type
Paper for Seminar/Symposium/Conference
Media
ICES 2013 - International Conference on Environmental Systems (14-18 July 2013, Vail, Colorado, USA)
Web site
Anno
2013
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2024-11-08T22:06:01Z
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