TY  - CONF
A1  - Kohlberger, David-Sharif
A1  - Wild, Dominik
A1  - Kasper, Stefan
A1  - Czupalla, Markus
T1  - Modeling and analyses of a thermal passively stabilized LEO/GEO star tracker with embedded phase change material applying the Infused Thermal Solutions (ITS) method
T2  - ICES202: Satellite, Payload, and Instrument Thermal Control
N2  - Phase change materials offer a way of storing excess heat and releasing it when it is needed. They can be utilized as a method to control thermal behavior without the need for additional energy. This work focuses on exploring the potential of using phase change materials to passively control the thermal behavior of a star tracker by infusing it with a fitting phase change material. Based on the numerical model of the star trackers thermal behavior using ESATAN-TMS without implemented phase change material, a fitting phase change material for selected orbits is chosen and implemented in the thermal model. The altered thermal behavior of the numerical model after the implementation is analyzed for different amounts of the chosen phase change materials using an ESATAN-based subroutine developed by the FH Aachen. The PCM-modelling-subroutine is explained in the paper ICES-2021-110. The results show that an increasing amount of phase change material increasingly damps temperature oscillations. Using an integral part structure some of the mass increase can be compensated.
KW  - passive thermal control
KW  - PCM
KW  - star tracker
KW  - Infused Thermal Solutions
KW  - GEO
KW  - LEO
Y1  - 2024
UR  - https://opus.bibliothek.fh-aachen.de/opus4/frontdoor/index/index/docId/11566
N1  - 50th International Conference on Environmental Systems, 12-15 July 2021, held virtually
PB  - Texas Tech University
CY  - Lubbock, Tex.
ER  -