Fouling Detection based on Vibration Analysis with the Hammer Impact Test

Silva, J.J. da; Lima, A.M.N.; Neff, Franz Helmut; Neto, José Sérgio da Rocha

doi:10.1109/imtc.2007.379443

Cited by 3 publications

(2 citation statements)

References 9 publications

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“…Silva [7], [8] presented preliminary research results of vibrational hammer excitation for easy to use external noninvasive, non-destructive fouling detection in pipelines. The proposed method could detect the inner pipe layer formation, and thickness estimation of the adsorbed material.…”

Section: Related Workmentioning

confidence: 99%

Impact of Fouling on Flow-Induced Vibration Characteristics in Fluid-Conveying Pipelines

et al. 2016

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This paper has addressed the common monitoring problems in petrochemical companies, which are caused by fouling and clogging in the circulating water heat exchangers, and has introduced techniques to monitor the heat exchanger's wall vibrations for early failure detection. Due to the difficulties encountered in simulation caused by the large number of tubes inside the heat exchanger, such monitoring methods are discussed by studying the fouling of a fluid-conveying pipeline. ANSYS was used to establish the normal and fouling models of a fluid-conveying pipeline so as to analyze the changing rules of various parameters that are influenced by different inlet velocities. These parameters include flow velocity, direction, pipeline wall load, wall displacement, and the acceleration of fluid domain in a fluid-conveying pipeline. It is shown that, as the inlet velocity and fouling severity continuously increase, the wall load and the vibration acceleration increase as well, leading variations in wall vibration signals. This paper conducts extensive experiments by using straight pipes to compare the results from simulation with those from the normal fluid-conveying pipelines under the same working conditions. By such comparison, the efficacy of the simulation model has been demonstrated.INDEX TERMS Fluid-conveying pipelines, fouling impact, vibration characteristics, vibration signals.

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Section: Related Workmentioning

confidence: 99%

Impact of Fouling on Flow-Induced Vibration Characteristics in Fluid-Conveying Pipelines

et al. 2016

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“…A detailed description of the set-up is provided in Ref. [14]. Quantitative data, regarding the thickness of the fouling layer, were extracted from the acoustic power attenuation characteristics as a function of film thickness.…”

Section: Introductionmentioning

confidence: 99%

Vibration analysis for fouling detection using hammer impact test and finite element simulation

Silva

Queiroz

Lima

et al. 2008

2008 IEEE Instrumentation and Measurement Technology Conference

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The easy detection of fouling in duct systems is a persistent problem and remains a relevant demandfor the chemical, oil, food and pharmaceutical industries. This work presents preliminary research results of vibrational hammer excitation for easy to use external non-invasive, non-destructive fouling detection in pipelines and other large scale duct systems. The main goal is the detection of inner pipe layer formation, and thickness estimation of the adsorbed material. Data were taken from the vibration amplitude variation in presence of an inner pipe fouling layer using acoustic accelerometer detection, combined with FE (Finite Elements). The experimental set-up, achievable sensitivity and limitations ofthe method are outlined.

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Non-Invasive Fast Detection of Internal Fouling Layers in Tubes and Ducts by Acoustic Vibration Analysis

Silva

Lima

Neff

et al. 2009

IEEE Trans. Instrum. Meas.

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Fouling Detection based on Vibration Analysis with the Hammer Impact Test

Cited by 3 publications

References 9 publications

Impact of Fouling on Flow-Induced Vibration Characteristics in Fluid-Conveying Pipelines

Impact of Fouling on Flow-Induced Vibration Characteristics in Fluid-Conveying Pipelines

Vibration analysis for fouling detection using hammer impact test and finite element simulation

Non-Invasive Fast Detection of Internal Fouling Layers in Tubes and Ducts by Acoustic Vibration Analysis

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