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THERMAL MODELING OFSATELLITES: HEAT PIPES AND PAYLOAD OF A SPACEBUSNEO SATELLITE
KTH, School of Electrical Engineering (EES).
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Thales Alenia Space is currently developing an innovative satellite platform with a two-phase fluid loop on board. The company uses two softwares in order to create models that are meaningful regarding physics: Amesim and e-Therm. The first one is used to describe fluid behavior in a circuit, while the second one is used to simulate conductive and radiative heat transfers in a satellite model but cannot be used to model fluid components. The interconnection of both software through a cosimulation module would allow to create dynamic models that would take into account both physical aspects. My internship was initially supposed to deal with the debugging of that cosimulation module, however a delay for its delivery forced me to reorient myself. First, I used e-Therm to model 3D heat pipes profiles, before working on the thermal model of a Spacebus Neo satellite in order to check the validity of the design choices that were kept for that satellite.

Abstract [fr]

Thales Alenia Space développe actuellement une plateforme de satellite innovante embarquant une boucle fluide diphasique. Dans le but de créer des modèles de satellites représentatifs de la réalité physique, l’entreprise dispose de deux logiciels : Amesim et e-Therm. Le premier décrit très bien les circuits fluidiques, tandis que le second modélise les échanges conductifs et radiatifs dans un modèle de satellite mais ne peut pas modéliser d’élément fluidique. La mise en relation de ces deux logiciels par un module de cosimulation permettrait de créer des modèles dynamiques prenant en compte les deux aspects physiques. Mon stage s’inscrivait dans le développement de ce module de cosimulation, mais un retard sur sa livraison m’a forcé à me réorienter. Mon travail a donc consisté à utiliser e-Therm pour modéliser des profilés de caloducs dans un premier temps, avant de travailler sur un modèle de satellite Spacebus Neo dans le but de vérifier si les choix de design qui avaient été retenus étaient valides.

Place, publisher, year, edition, pages
2016. , 75 p.
Series
EES Examensarbete / Master Thesis, TRITA -EE 2016:015
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-187729OAI: oai:DiVA.org:kth-187729DiVA: diva2:931359
Examiners
Available from: 2016-05-27 Created: 2016-05-27 Last updated: 2016-05-27Bibliographically approved

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