CEN/TR 17603-31-17:2022

Space engineering - Thermal analysis handbook

This handbook is dedicated to the subject of thermal analysis for space applications. Thermal analysis is an important method of verification during the development of space systems. The purpose of this handbook is to provide thermal analysts with practical guidelines which support efficient and high quality thermal modelling and analysis.
Specifically, the handbook aims to improve:
1.the general comprehension of the context, drivers and constraints for thermal analysis campaigns;
2.the general quality of thermal models through the use of a consistent process for thermal modelling;
3.the credibility of thermal model predictions by rigorous verification of model results and outputs;
4.long term maintainability of thermal models via better model management, administration and documentation;
5.the efficiency of inter-organisation collaboration by setting out best practice for model transfer and conversion.
The intended users of the document are people, working in the domain of space systems, who use thermal analysis as part of their work. These users can be in industry, in (inter)national agencies, or in academia. Moreover, the guidelines are designed to be useful to users working on products at every level of a space project - that is to say at system level, sub-system level, unit level etc.
In some cases a guideline could not be globally applicable (for example not relevant for very high temperature applications). In these cases the limitations are explicitly given in the text of the handbook.

Raumfahrttechnik - Handbuch für thermische Analyse

Ingénierie spatiale - Manuel d'analyse thermique

Vesoljska tehnika - Priročnik o toplotni analizi

Ta priročnik je posvečen toplotni analizi za vesoljske tehnike. Toplotna analiza je pomembna metoda preverjanja pri razvoju vesoljskih sistemov. Namen tega priročnika je analitikom toplote zagotoviti praktične smernice, ki podpirajo učinkovito in visokokakovostno toplotno modeliranje oziroma analizo.
Natančneje, namen priročnika je izboljšati:
1. splošno razumevanje konteksta, ključnih dejavnikov in omejitev za izvedbo toplotne analize;
2. splošno kakovost toplotnih modelov z uporabo doslednega procesa toplotnega modeliranja;
3. verodostojnost napovedi toplotnega modela s strogim preverjanjem rezultatov in izhodnih podatkov modela;
4. dolgoročno vzdržljivost toplotnih modelov z boljšim upravljanjem, administracijo in dokumentacijo modelov;
5. učinkovitost medorganizacijskega sodelovanja z določitvijo dobre prakse za prenos in pretvorbo modelov.
Predvideni uporabniki dokumenta so osebe, ki delajo na področju vesoljskih sistemov in pri svojem delu uporabljajo toplotno analizo. To so lahko uporabniki v industriji, v (med)nacionalnih agencijah ali v akademskih krogih. Poleg tega so smernice zasnovane tako, da jih lahko uporabljajo tudi tisti, ki delajo na vseh ravneh vesoljskega projekta – to je na ravni sistema, ravni podsistema, ravni enote itd.
V nekaterih primerih smernice ni mogoče uporabiti globalno (na primer ni pomembna za uporabo pri zelo visokih temperaturah). V teh primerih so omejitve izrecno navedene v besedilu priročnika.

General Information

• Status: Published
• Publication Date: 11-Jan-2022
• ICS: 49.140 - Space systems and operations
• Technical Committee: CEN/CLC/TC 5 - Space
• Drafting Committee: CEN/CLC/TC 5/WG 6 - Upstream standards
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 12-Jan-2022
• Due Date: 29-Dec-2022
• Completion Date: 12-Jan-2022
• Mandate: M/496 - Mandate addressed to CEN, CENELEC and ETSI to develop standardisation regarding space industry (Phase 3 of the process)
• Ref Project: SIST-TP CEN/TR 17603-31-17:2022 - Space engineering - Thermal analysis handbook

Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN/TR 17603-31-17:2022
01-marec-2022
Vesoljska tehnika - Priročnik o toplotni analizi
Space engineering - Thermal analysis handbook
Raumfahrttechnik - Handbuch für thermische Analyse
Ingénierie spatiale - Manuel d'analyse thermique
Ta slovenski standard je istoveten z: CEN/TR 17603-31-17:2022
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
SIST-TP CEN/TR 17603-31-17:2022 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/TR 17603-31-17:2022


TECHNICAL REPORT CEN/TR 17603-31-17

RAPPORT TECHNIQUE

TECHNISCHER BERICHT
January 2022
ICS 49.140

English version

Space engineering - Thermal analysis handbook
Ingénierie spatiale - Manuel d'analyse thermique Raumfahrttechnik - Handbuch für thermische Analyse


This Technical Report was approved by CEN on 29 November 2021. It has been drawn up by the Technical Committee
CEN/CLC/JTC 5.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
























CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2022 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. CEN/TR 17603-31-17:2022 E
reserved worldwide for CEN national Members and for
CENELEC Members.

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CEN/TR 17603-31-17:2022 (E)
Table of contents
European Foreword . 6
1 Scope . 7
1.1 Objectives and intended audience . 7
1.2 Context .7
2 References . 9
3 Terms, definitions and abbreviated terms . 11
3.1 Terms from other documents . 11
3.2 Terms specific to the present document . 12
3.3 Abbreviated terms. 13
4 Modelling guidelines . 16
4.1 Model management . 16
4.2 Model configuration and version control . 17
4.3 Modelling process . 17
4.4 Modularity and decomposition approach . 19
4.5 Discretisation . 19
4.5.1 Overview . 19
4.5.2 Spatial discretisation and mesh independence . 20
4.5.3 Observability . 20
4.5.4 Time discretisation . 21
4.5.5 Input parameters . 22
4.6 Transient analysis cases. 23
4.7 Modelling thermal radiation . 23
4.7.1 Introduction to thermal radiation . 23
4.7.2 Radiative environment . 24
4.7.3 Thermo-optical properties . 25
4.7.4
...