Proceedings of the International Conference on Advanced Materials, Manufacturing and Sustainable Development (ICAMMSD 2024)

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Emissivity Measurement Using Heat Flux Method at Cryogenic Temperatures

Authors
Manu M. John1, *, Rijo Jacob Thomas2, K. A. Shafi2
1Department of Mechanical Engineering, College of Engineering Adoor, Kerala, 691551, India
2Department of Mechanical Engineering, TKM College of Engineering, Kollam, Kerala, 691005, India
*Corresponding author. Email: manumjohn@cea.ac.in
Corresponding Author
Manu M. John
Available Online 17 March 2025.
DOI
10.2991/978-94-6463-662-8_68How to use a DOI?
Keywords
Emissivity; Heat flux method; Heat flux sensor
Abstract

This article presents a method for assessing surface emissivity at cryogenic temperatures using heat flow analysis. This approach calculates emissivity by directly evaluating heat transfer across the surface, providing a more efficient alternative to conventional calorimetric techniques. Unlike conventional approaches, which rely on applying precise amounts of heat or monitoring temperature variations to infer emissivity, this technique minimizes complexity by removing the need for exact thermal insulation or controlled heat inputs. By employing heat flux sensors, it achieves highly accurate, real-time heat flow measurements, enabling dependable emissivity assessments. This approach is particularly advantageous for evaluating advanced materials designed for extended space missions. The research employed a commercially accessible heat flux sensor to assess the emissivity of various materials such as black paint, stainless steel, aluminium foil, and aluminized mylar over a temperature range of 90K to 180K. The paper discusses the underlying theory, experimental design, and results of the investigation.

Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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Volume Title
Proceedings of the International Conference on Advanced Materials, Manufacturing and Sustainable Development (ICAMMSD 2024)
Series
Advances in Engineering Research
Publication Date
17 March 2025
ISBN
978-94-6463-662-8
ISSN
2352-5401
DOI
10.2991/978-94-6463-662-8_68How to use a DOI?
Copyright
© 2025 The Author(s)
Open Access
Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

Cite this article

risenwbib
TY  - CONF
AU  - Manu M. John
AU  - Rijo Jacob Thomas
AU  - K. A. Shafi
PY  - 2025
DA  - 2025/03/17
TI  - Emissivity Measurement Using Heat Flux Method at Cryogenic Temperatures
BT  - Proceedings of the International Conference on Advanced Materials, Manufacturing and Sustainable Development (ICAMMSD 2024)
PB  - Atlantis Press
SP  - 842
EP  - 851
SN  - 2352-5401
UR  - https://doi.org/10.2991/978-94-6463-662-8_68
DO  - 10.2991/978-94-6463-662-8_68
ID  - John2025
ER  -