Search Results

This paper describes the transient simulation of a single-phase mechanically pumped fluid loop (MPFL) thermal control system, developed in the frame of the European Space Agency ARTES 8 (Advanced Research in Telecommunication Systems - Large Platform Program) program. MPFL is intended to cool a part of the payload on a high power telecommunication satellite. A transient simulation has been implemented using ESATAN/FHTS; hence the results have been correlated with the test results, obtained from full scale MPFL testing, using real on-orbit profiles. The most considerable parts of the activities described herein are simulation of the thermal control law, verification of control parameters during thermo-hydraulic testing and the subsequent correlation.

The generic PROTEUS program was initiated by CNES and Alcatel Alenia Space by the end of 1996 to develop a multi mission platform for LEO small scientific Satellites. From a thermal control point of view, the ambitious aim was to base the mission adaptability solely on the modification of the radiator sizes and the active thermal control software parameters. The Satellite JASON-1 (successor of Topex Poseidon), which was launched in December 2001 is the first application of the PROTEUS platform. Thanks to more than 4 years of exploitation (designed for 5 years), the PROTEUS/JASON-1 thermal control has definitely proven its robustness. Because of this successful flight operation, 5 other platforms have been contracted. These platforms will benefit from developments to bear the heavier and more dissipative payloads to be launched between 2006 to 2008. Calipso, the first Satellite which benefits from these imrovements was delivered to launcher authority in July 2005.