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Thermal Storage at -80°C for the eROSITA Telescope
Technical Paper
2008-01-1955
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
eROSITA1 is a powerful X-ray telescope currently under development for the Russian Spectrum-Roentgen-Gamma2 mission. It comprises seven Wolter telescopes each equipped with its own CCD camera operating at -80±0.5°C. The cooling system for the eROSITA cameras includes passive thermal control components only: two radiators, Variable Conductance Heat Pipes (VCHP) and a newly developed Latent Cold Storage3 (LCS).
Based on the same working principle as conventional latent heat storages, a first LCS prototype was developed and used for testing different Phase Change Materials (PCM) with melting temperatures close to -80°C. The LCS proved to be almost isothermal, suggesting minimum heat losses and good thermal contact between the LCS and the PCM.
Citation
Tiedemann, L., Eder, J., Furmetz, M., and Predehl, P., "Thermal Storage at -80°C for the eROSITA Telescope," SAE Technical Paper 2008-01-1955, 2008, https://doi.org/10.4271/2008-01-1955.Also In
References
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