Author(s)

Yang Xiao ¹, Yingchun Chen ¹

Affiliation(s)

¹ Beijing University of Technology, Beijing, China

Corresponding Author

Yang Xiao

ABSTRACT

This study systematically investigates the precision measurement of carburized layer thickness in ethylene cracking furnace tubes. Using an induction coil probe based on magnetic flux detection as the core detection tool, and employing COMSOL Multiphysics finite element simulation, we explore the impact of receiving coil size parameters on detection performance. The feasibility of using induction coil probes for carburized layer thickness measurement is validated, providing scientific basis and technical support for practical probe manufacturing. To address the severe carburizing damage in ethylene cracking furnace tubes that jeopardizes plant safety operations and the limitations of conventional inspection methods, this study developed a two-dimensional numerical simulation model based on magnetic flux detection principles. The model integrates an induction coil probe with furnace tubes, with precise electromagnetic and structural parameters defined for each component. Using parametric scanning and single-variable analysis methods, we systematically investigated how three core dimensions-coil wire diameter, height, and outer diameter-impact detection signals. During experimental simulations, grid quality validation and normalization procedures ensured computational accuracy and reliability. These findings provide robust simulation support and theoretical foundations for optimizing structural parameters, manufacturing processes, and industrial deployment of induction coil-based carburizing layer thickness detection probes.

KEYWORDS

Non-destructive testing, Magnetic flux testing, Ethylene cracking furnace tube, Carburized layer

CITE THIS PAPER

Yang Xiao, Yingchun Chen. COMSOL Simulation Study on the Influence of the Parameter of the Magnetic Flux Detection Probe Receiving Coil on the Detection Performance of the Carburized Layer. Journal of Civil Engineering and Urban Planning (2026). Vol. 8, No.1, 20-30. DOI: http://dx.doi.org/10.23977/jceup.2026.080103.

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