Self-Excited Acoustical System Frequency Monitoring for Refractory Concrete under Uniaxial Compression

Ilona Kieliba, Ireneusz Dominik, Krzysztof Lalik, Thorsten Tonnesen, Jacek Szczerba and Reiner Telle
Additional contact information
Ilona Kieliba: GHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, Germany
Ireneusz Dominik: Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
Krzysztof Lalik: Faculty of Mechanical Engineering and Robotics, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
Thorsten Tonnesen: GHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, Germany
Jacek Szczerba: Faculty of Ceramics and Materials Engineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Krakow, Poland
Reiner Telle: GHI-Institute of Mineral Engineering, RWTH Aachen University, Mauerstr. 5, D-52064 Aachen, Germany

Energies, 2021, vol. 14, issue 8, 1-17

Abstract: The characterization of materials, stress and fatigue state monitoring based on the acoustoelastic principle are gaining widespread attention in recent years, mainly due to their advantages such as high sensitivity and non-destructive character. This article presents the application of a non-destructive acoustic method to test the degree of degradation of materials with which the heating boiler is coated. The combustion chamber is covered in materials when the temperature of the process itself increases, and has a very positive effect on fuel combustion. Unfortunately, with the passage of time, such materials undergo gradation. This article describes an innovative measuring system that has been successfully applied to monitor changes in resonance frequency under uniaxial compression in refractory grade material, which by definition is characterized by a high level of heterogeneity with a network of pre-existing cracks. The paper indicates that both stress and elasticity coefficients have an impact on the vibration frequency of the measuring system. Initial research was conducted to qualitatively determine the influence of these parameters on the measured frequency of the system.

Keywords: resonance frequency; acoustoelasticity; self-excited system; refractories; concrete (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
https://www.mdpi.com/1996-1073/14/8/2222/pdf (application/pdf)
https://www.mdpi.com/1996-1073/14/8/2222/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:14:y:2021:i:8:p:2222-:d:537328

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().