Abstract
Gas gap heat switches owe their compactness and absence of moving parts to a small cryopump that manages the gas pressure inside the gap. The knowledge of adsorption characteristics of different activated charcoals for different gases (helium, hydrogen and nitrogen) allowed the creation of a pre-dimensioning tool to predict the switch conduction as a function of the cryopump temperature. In order to increase the conductance in the ON state, different geometries of sorption actuated GGHS were developed to operate between 3 K and 100 K. These prototypes were characterized using different exchange gases, and successfully compared with the conduction model.
| Original language | Unknown |
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| Title of host publication | Proceedings of the 24th International Cryogenic Engineering Conference |
| Pages | 315-318 |
| Publication status | Published - 1 Jan 2012 |
| Event | ICEC24 - 24th International Cryogenic Engineering Conference - Duration: 1 Jan 2012 → … |
Conference
| Conference | ICEC24 - 24th International Cryogenic Engineering Conference |
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| Period | 1/01/12 → … |