Optimized Phase Change Material Module for Thermal Regulation of Cycled Dissipative Units



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49th International Conference on Environmental Systems


Phase Change Materials are very good candidates to smooth temperature variations of units which undergo thermal cycling dissipations or external cycling thermal loads. They can also be used to damped fast but short thermal load such as the ones encountered during reentry of vehicules in atmosphere. The main drawbacks of PCM are their very low conductivity and volume variation during phase changes. This work presents the various methods that have been tested and evaluated to produce hermetic vessels filled with PCM with enhanced thermal conductivities. The influence of such thermal damper on the thermal control of an equipment is showed. The effect of the PCM fusion temperature and heat sink temperature is illustrated. Tests have been conducted under atmospheric pressure and under vacuum with many thermal cycles and all the vessels showed a very good stability.


Jean-Paul Dudon, Thales Alenia Space, France
Martin Raynaud, Thales Alenia Space, France
Julien Bosse, Thales Alenia Space, France
Paul Atinsounon, Thales Alenia Space, France
Michele Ferrier, Thales Alenia Space, France
David Valentini, Thales Alenia Space, France
Gilles Blanc, Influtherm, France


Phase Change Material, Thermal damper, Encapsulation, Measurement, Fusion temperature