<abstract xmlns="http://www.w3.org/1999/xhtml"><p>Thermographic cameras are becoming increasingly popular in all kinds of diagnostic testing aiming to assess the technical state of thermal power engineering machinery, equipment and installations. The cameras provide thermograms that enable identification of various irregularities, including thermal bridges. However, it can be observed that their accuracy and reliability depend substantially on the conditions in which tests are carried out. Industrial thermographic testing, especially in thermal power engineering, is one of the most difficult procedures. Apart from the advantages of this particular technique, this paper presents an analysis of the effect of the conditions in which tests are performed on the obtained results. Attention is drawn to parameters characterizing the environment and the tested element surface, such as emissivity, reflected temperature, distance between the camera and the object, air temperature, etc. The sources of errors in the testing and in the interpretation of thermograms are indicated. Methods are also presented that enable elimination of irregularities, which improves the accuracy of the final results.</p></abstract>

Thermographic cameras are becoming increasingly popular in all kinds of diagnostic testing aiming to assess the technical state of thermal power engineering machinery, equipment and installations. The cameras provide thermograms that enable identification of various irregularities, including thermal bridges. However, it can be observed that their accuracy and reliability depend substantially on the conditions in which tests are carried out. Industrial thermographic testing, especially in thermal power engineering, is one of the most difficult procedures. Apart from the advantages of this particular technique, this paper presents an analysis of the effect of the conditions in which tests are performed on the obtained results. Attention is drawn to parameters characterizing the environment and the tested element surface, such as emissivity, reflected temperature, distance between the camera and the object, air temperature, etc. The sources of errors in the testing and in the interpretation of thermograms are indicated. Methods are also presented that enable elimination of irregularities, which improves the accuracy of the final results.

The conditions for thermographic testing of thermal power engineering installations

Institute of Thermal Power Engineering, Faculty of Mechanical Engineering

Technical Transactions

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Thermographic cameras are becoming increasingly popular in all kinds of diagnostic testing aiming to assess the technical state of thermal power engineering...

The conditions for thermographic testing of thermal power engineering installations

Published Online: May 29, 2020

Page range: 179 - 192

DOI: https://doi.org/10.4467/2353737XCT.17.183.7291

Keywords
engineering installations, thermographic testing, thermogram, emissivity, reflected temperature

© 2017 Stanisław Łopata et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

The conditions for thermographic testing of thermal power engineering installations

Published Online: May 29, 2020

Page range: 179 - 192

DOI: https://doi.org/10.4467/2353737XCT.17.183.7291

Keywordsengineering installations, thermographic testing, thermogram, emissivity, reflected temperature

© 2017 Stanisław Łopata et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
engineering installations, thermographic testing, thermogram, emissivity, reflected temperature