Thermal analysis of the Alsat-1 satellite battery pack sub assembly into the honeycomb panel

摘要

Information on battery problems can be useful in guiding research to improve battery technology. Problems that are serious or reoccur are the obvious ones to concentrate on. Observed problems can be caused by more than one phenomenon. However the problem that was observed on the Alsat-1 battery module where some cells were damaged, and the damage was caused by the extreme temperatures, an explanation can be brought to this problem is that the two different inserts (simple insert and hard insert) are very close which caused an increase in heat flux. The inserts used to support the battery in the honeycomb panel have a serious impact on the conduction from the solar panel to the battery pack, and so the temperature of the solar panel closer to the battery determines its temperature. Thus for this reason the simulation was performed to see carefully this phenomenon caused by the thermal coupling of the surrounding inserts and the important feedback from the results obtained in order to avoid all risky design in the future on the Algerian satellites such as Alsat-1B. Thermal simulations showed that the adjacent inserts cause thermal interference and the adjacent inserts are highly sensitive to the effect of high temperatures. The different results obtained in this paper are very helpful in the preliminary design stage of the spacecraft and which is a very promising application in the design of satellite electrical power subsystem.