Spectral emissivity measurement for high-temperature applications: a systematic review

Authors

  • Nicola Giulietti University of Pavia, Italy
  • Gloria Cosoli Department of Theoretical and Applied Sciences, eCampus University, Novedrate, Italy
  • Rachele Napolitano Università Politecnica delle Marche, Ancona, Italy
  • Giuseppe Pandarese Università Politecnica delle Marche, Ancona, Italy
  • Gian Marco Revel Università Politecnica delle Marche, Ancona, Italy
  • Paolo Chiariotti Department of Mechanical Engineering, Politecnico di Milano, 20156 Milan, Italy

DOI:

https://doi.org/10.21014/actaimeko.v14i1.1846

Keywords:

spectral emissivity measurement, high temperature measurement, measurement uncertainty

Abstract

Measuring emissivity is pivotal for obtaining reliable high-temperature measurements through non-contact techniques such as pyrometry and thermal imaging. The interest in characterizing materials in terms of their radiant properties has increased in recent years due to the expanded application fields of these techniques, ranging from the process industry to aerospace and the energy industry. Various methods are available in the literature to assess material emissivity, but they are primarily classified into indirect and direct methods. This review also addresses different types of materials, various experimental conditions (e.g., heating technologies and measurement frequency bands), and different types of measurement outputs. The aim of this review paper is therefore to systematically examine the literature available on the topic, highlighting the pros and cons of the different methodologies used for measuring emissivity at temperatures up to 2500 °C.

Author Biographies

Nicola Giulietti, University of Pavia, Italy

Junior Research Associate (RTD-A) at Dipartimento di Ingegneria Industriale e dell’Informazione

Gloria Cosoli, Department of Theoretical and Applied Sciences, eCampus University, Novedrate, Italy

Università Politecnica delle Marche: contract researcher at Department of Industrial Engineering and Mathematical Sciences;

eCampus: Research Fellow at Faculty of Engineering 

Rachele Napolitano, Università Politecnica delle Marche, Ancona, Italy

Post-doc at Department of Industrial Engineering and Mathematical Sciences

Giuseppe Pandarese, Università Politecnica delle Marche, Ancona, Italy

Technician at Department of Industrial Engineering and Mathematical Sciences

Gian Marco Revel, Università Politecnica delle Marche, Ancona, Italy

Full Professor at Department of Industrial Engineering and Mathematical Sciences

Downloads

Published

2025-03-12

Issue

Vol. 14 No. 1 (2025)

Section

Research Papers

License

Copyright (c) 2025 Nicola Giulietti, Gloria Cosoli, Rachele Napolitano, Giuseppe Pandarese, Gian Marco Revel, Paolo Chiariotti

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under the CC BY 4.0, Creative Commons Attribution 4.0 International License.

Users are free to

  • share, i.e. copy and redistribute the material in any medium or format for any purpose, even commercially;
  • adapt, i.e. remix, transform, and build upon the material for any purpose, even commercially.

At the same time, the user must give appropriate credit, provide a link to the license, and indicate if changes were made.
Additional information about the license can be found at: https://creativecommons.org/licenses/by/4.0/.

Authors are

  • able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
  • permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).