<abstract xmlns="http://www.w3.org/1999/xhtml"><p> This paper presents the experimental determination of the dependence of emissivity of brass on surface roughness and temperature. The investigation was conducted using the infrared thermographic technique on brass alloy C27200 workpieces with different degrees of surface roughness, during the continuous cooling process. The results obtained showed that the emissivity of the chosen brass alloy increases with greater surface roughness and decreases during the cooling process, its value ranging from 0.07 to 0.19. It was concluded that surface roughness has a greater influence on the increase of the emissivity at higher temperatures, which can be seen in the three-dimensional infrared images. Multiple regression analysis confirmed a strong correlation between the examined parameters and the emissivity, and an original multiple regression model was determined.</p></abstract>

This paper presents the experimental determination of the dependence of emissivity of brass on surface roughness and temperature. The investigation was conducted using the infrared thermographic technique on brass alloy C27200 workpieces with different degrees of surface roughness, during the continuous cooling process. The results obtained showed that the emissivity of the chosen brass alloy increases with greater surface roughness and decreases during the cooling process, its value ranging from 0.07 to 0.19. It was concluded that surface roughness has a greater influence on the increase of the emissivity at higher temperatures, which can be seen in the three-dimensional infrared images. Multiple regression analysis confirmed a strong correlation between the examined parameters and the emissivity, and an original multiple regression model was determined.

Determination of Emissivity of Brass Alloy using Infrared Thermographic Technique

Materials and Geoenvironment

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

This paper presents the experimental determination of the dependence of emissivity of brass on surface roughness and temperature. The investigation was...

Determination of Emissivity of Brass Alloy using Infrared Thermographic Technique

Publicado en línea: 06 dic 2018

Páginas: 115 - 121

Recibido: 01 may 2018

Aceptado: 08 jun 2018

DOI: https://doi.org/10.2478/rmzmag-2018-0019

Palabras clave
emissivity, brass, infrared thermographic technique (ITT), three-dimensional infrared (3D IR) images, regression analysis

© 2018 Zorana Lanc, et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Determination of Emissivity of Brass Alloy using Infrared Thermographic Technique

Publicado en línea: 06 dic 2018

Páginas: 115 - 121

Recibido: 01 may 2018

Aceptado: 08 jun 2018

DOI: https://doi.org/10.2478/rmzmag-2018-0019

Palabras claveemissivity, brass, infrared thermographic technique (ITT), three-dimensional infrared (3D IR) images, regression analysis

© 2018 Zorana Lanc, et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Palabras clave
emissivity, brass, infrared thermographic technique (ITT), three-dimensional infrared (3D IR) images, regression analysis