Development of a hydrogen electrochemical compression system for Joule-Thomson Cryocooler - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2023

Development of a hydrogen electrochemical compression system for Joule-Thomson Cryocooler

Résumé

Among the multiple complexities of extraterrestrial observation, there is the fact that a sensor of radio or infrared waves emits electromagnetic radiation. It is thus necessary to neutralize these waves by the extreme cold to improve the quality of the observation. The hydrogen electrochemical compressor developed in this study in collaboration with the European Space Agency, which has all the advantages of non-mechanical compressors1,2, would produce hydrogen at high pressure which would then be introduced into a Joule-Thomson expansion. This process would generate enough cold, up to -253°C. At this temperature, hydrogen is in a liquid state, which allows to cool the sensors and to neutralize the electromagnetic radiation they produce. The major challenge of such an electrochemical compression system remains water management3. Indeed, it is fundamental that the hydrogen is humified to improve the charge transfer through the polymer membrane. On the other hand, the high-pressure hydrogen stream that is produced must be rigorously dry before the Joule-Thomson expansion. The possibility of using a countercurrent membrane water exchanger in series with the electrochemical compressor is explored, which allows the produced hydrogen stream (which is compressed and wet) to be dried and the dry low-pressure hydrogen stream to be humidified at the same time. In this study, the design of an electrochemical hydrogen compressor operating between 1 and 100 bar, following a flow rate of 10 mg/s of hydrogen, is performed. The characterization of the base materials, in particular the polymer membrane and the gas diffusion layers, has been performed to identify the best solution to improve the energy efficiency of the system4,5. For this purpose, sintered titanium diffusion layers with different porosities were used, as well as different PFSA membranes. At the same time, a temperature gradient between the two compressor compartments was applied to avoid water condensation in the system. This solution improves the stability of the system. The performances obtained with the different materials and under different operating conditions will be presented in terms of efficiency, durability and compactness.
Fichier non déposé

Dates et versions

hal-04317117 , version 1 (01-12-2023)

Identifiants

  • HAL Id : hal-04317117 , version 1

Citer

Giuseppe Sdanghi, Jérôme Dillet, Thomas Prouvé, Moritz Branco, Gaël Maranzana. Development of a hydrogen electrochemical compression system for Joule-Thomson Cryocooler. 8th European Space Cryogenics Workshop, Jun 2023, Noordiwjk, Netherlands. ⟨hal-04317117⟩
17 Consultations
0 Téléchargements

Partager

Gmail Facebook X LinkedIn More