Phase Change Material Heat Accumulator for the HEXAFLY Hypersonic Glider


From the launchers to the spacecrafts, various on-board systems have to be maintained within specified temperature limits. Phase Change Materials (PCM) offer the possibility to store thermal energy directly as latent heat of fusion. Among the advantages of a PCM device are the stability of temperature control, the absence of moving parts and a reduced mass. The HEXAFLY-INTERNATIONAL project aims to flight test an experimental vehicle above Mach 7 to verify its potential for a high aerodynamic efficiency during a free-flight. European Major Resarch Centers and Industries are collaborating on this challenge. The presented activity focus on the use of a Phase Change Material device already developed under ESA projects up to TRL 6. Two efficient heat accumulators using PCM will allow avoiding overheating of electronic boxes such as telemetry & telecommand receivers, transmitters and data acquisition boxes for the hypersonic flight. The paper presents the complete cycle of design, manufacturing, integration and environmental testing for the two PCM heat accumulators selected for the flight. The conclusions will show the benefit of adopting a Phase Change Material Heat Accumulator.


Jean-Paul Collette, WalOpt, Belgium
Pierre Rochus, ULg, Belgium
Johan Steelant, European Space Agency (ESA), Netherlands
Romain Peyrou-Lauga, European Space Agency (ESA), Netherlands
Nicolas Nutal, CRM Group, Belgium
Jean-Yves Andro, Onera, France
Riccardo Nadalini, Sonaca Space, Germany
Pedro Romero Fernandez, Sonaca, Belgium
ICES104: Advances in Thermal Control Technology
The 49th International Conference on Environmental Systems as held in Boston, Massachusetts, USA on 07 July 2019 through 11 July 2019.


Phase Change Material, Thermal control, Heat storage, Heat of fusion, Hypersonic glider, Electronics cooling, Flight testing