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CEN

CEN/CLC/TR 17603-31-12:2021

(Main)

Space Engineering - Thermal design handbook - Part 12: Louvers

Space Engineering - Thermal design handbook - Part 12: Louvers

Thermal louvers are thermal control surfaces whose radiation characteristics can be varied in order to
maintain the correct operating temperature of a component subject to cyclical changes in the amount
of heat that it absorbs or generates.
The design and construction of louvers for space systems are described in this Part 12 and a clause is
also dedicated to providing details on existing systems.
The Thermal design handbook is published in 16 Parts
TR 17603-31-01 Part 1 Thermal design handbook – Part 1: View factors
TR 17603-31-01 Part 2 Thermal design handbook – Part 2: Holes, Grooves and Cavities
TR 17603-31-01 Part 3 Thermal design handbook – Part 3: Spacecraft Surface Temperature
TR 17603-31-01 Part 4 Thermal design handbook – Part 4: Conductive Heat Transfer
TR 17603-31-01 Part 5 Thermal design handbook – Part 5: Structural Materials: Metallic and
Composite
TR 17603-31-01 Part 6 Thermal design handbook – Part 6: Thermal Control Surfaces
TR 17603-31-01 Part 7 Thermal design handbook – Part 7: Insulations
TR 17603-31-01 Part 8 Thermal design handbook – Part 8: Heat Pipes
TR 17603-31-01 Part 9 Thermal design handbook – Part 9: Radiators
TR 17603-31-01 Part 10 Thermal design handbook – Part 10: Phase – Change Capacitors
TR 17603-31-01 Part 11 Thermal design handbook – Part 11: Electrical Heating
TR 17603-31-01 Part 12 Thermal design handbook – Part 12: Louvers
TR 17603-31-01 Part 13 Thermal design handbook – Part 13: Fluid Loops
TR 17603-31-01 Part 14 Thermal design handbook – Part 14: Cryogenic Cooling
TR 17603-31-01 Part 15 Thermal design handbook – Part 15: Existing Satellites
TR 17603-31-01 Part 16 Thermal design handbook – Part 16: Thermal Protection System

Raumfahrttechnik - Handbuch für thermisches Design - Teil 12: Blenden

Ingénierie spatiale - Manuel de conception thermique - Partie 12 : Persiennes

Vesoljska tehnika - Priročnik o toplotni zasnovi - 12. del: Žaluzije

General Information

Status
Published
Publication Date
10-Aug-2021
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
11-Aug-2021
Due Date
14-Jul-2022
Completion Date
11-Aug-2021
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/CLC/TR 17603-31-12:2021 - Space Engineering - Thermal design handbook - Part 12: Louvers

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Standards Content (Sample)

SLOVENSKI STANDARD
SIST-TP CEN/CLC/TR 17603-31-12:2021
01-oktober-2021
Vesoljska tehnika - Priročnik o toplotni zasnovi - 12. del: Žaluzije
Space Engineering - Thermal design handbook - Part 12: Louvers
Raumfahrttechnik - Handbuch für thermisches Design - Teil 12: Luftschlitze
Ingénierie spatiale - Manuel de conception thermique - Partie 12: Persiennes
Ta slovenski standard je istoveten z: CEN/CLC/TR 17603-31-12:2021
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
SIST-TP CEN/CLC/TR 17603-31-12:2021 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST-TP CEN/CLC/TR 17603-31-12:2021

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SIST-TP CEN/CLC/TR 17603-31-12:2021


TECHNICAL REPORT
CEN/CLC/TR 17603-31-
12
RAPPORT TECHNIQUE

TECHNISCHER BERICHT

August 2021
ICS 49.140

English version

Space Engineering - Thermal design handbook - Part 12:
Louvers
Ingénierie spatiale - Manuel de conception thermique - Raumfahrttechnik - Handbuch für thermisches Design -
Partie 12 : Persiennes Teil 12: Blenden


This Technical Report was approved by CEN on 28 June 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
© 2021 CEN/CENELEC All rights of exploitation in any form and by any means Ref. No. CEN/CLC/TR 17603-31-12:2021 E
reserved worldwide for CEN national Members and for
CENELEC Members.

---------------------- Page: 3 ----------------------
SIST-TP CEN/CLC/TR 17603-31-12:2021
CEN/CLC/TR 17603-31-12:2021 (E)
Table of contents
European Foreword . 7
1 Scope . 8
2 References . 9
3 Terms, definitions and symbols . 10
3.1 Terms and definitions . 10
3.2 Symbols . 10
4 General introduction . 15
5 Components of a louver . 16
5.1 Blades . 16
5.2 Actuators . 18
5.2.1 Bimetals . 18
5.2.2 Bellows . 24
5.2.3 Bourdons . 35
5.3 Sensors . 37
5.3.1 Sensor location . 37
5.3.2 Coupling options . 38
5.4 Structural elements . 38
5.4.1 Actuator housing . 38
5.4.2 Frames . 38
6 Ideal louvers . 40
6.1 Sun-light operation. 40
6.1.1 Introduction . 40
6.1.2 Heat rejection capability .
...

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