10.14489/td.2015.03.pp.030-039

2015, 03 March

DOI: 10.14489/td.2015.03.pp.030-039

Barabanov P.A., Lunin V.P.
FINITE ELEMENT MODELING OF EDDY CURRENT DEPOSITS EVALUATION ON STEAM GENERATOR HEAT-EXCHANGER TUBES
(pp. 30-39)

Abstract. In this paper the importance of deposits detection on external surfaces of the heat-exchanger tubes was discussed. The purpose of this re-search is to make an approach of eddy current deposit detection and evaluation. The finite element modeling has been applied for studying deposits influence on the eddy current signal. The model of the heat-exchanger tube testing by bobbin probe was made. This paper describes the detailed specifications of two-dimensional and three-dimensional finite element models of the testing process. Advantages and disadvan-tages of these models were considered. A database of eddy current signals from deposits with different electrical and magnetic properties and size was measured. Signals have been estimated using the 2D FE model. A brief preliminary analysis of signals and the first conclusion about deposits influence on eddy current probe impedance has been mentioned. Results of the data evaluation indicate the necessity for carrying of deep and detailed signal analysis, which can show the possibility to use one or another method of the signal processing to solve the deposits eddy current evaluation problem.

Keywords: eddy current testing, deposits, heat-exchanger tubes, steam generator, finite element, modeling.

+ - About the Authors Click to collapse

P. A. Barabanov, V. P. Lunin
National Research University “Moscow Power Engineering Institute”, Moscow, Russia. Е-mail: Данный адрес e-mail защищен от спам-ботов, Вам необходимо включить Javascript для его просмотра.

+ - References Click to collapse

1. MacDonald P. E., Shah V. N., Ward L. W., Ellison P. G. (1996). Steam generator tube failures: Tech. Rep. NUREG/CR-6365. United States Nuclear Regulatory Com-mission.
2. Barabanov P. A., Lunin V. P. (2011). Analysis of the characteristics of eddy current signals in estimating geomet-rical parameters of the defects of the pipes of the steam gen-erator. XIX all-Russian scientific and technical conference on non-destructive testing and technical diagnostics: ab-stracts. Samara, 6 – 8 September 2011. Moscow: Izdatel'skii dom «Spektr».
3. Barabanov P. A., Lunin V. P. (2012). The algorithm for the separate determination of geometrical parameters of defects in the heat exchange tubes with eddy current inspec-tion. Proceedings of the ХХ International scientific and technical conference «Information means and technology». 20 – 22 No-vember 2012, Moscow: in 3 volumes. Vol. 3. Moscow: ID MEI.
4. Kim M.-K., Yim C.-J., Um K.-S. et al. (2011). De-velopment of scale measurement technologies for steam gen-erator tubing. Singapore International NDT Conference & Exhibition (SINCE2011). Singapore.
5. Jiang Z., El Guedri M., Haddar H., Lechleiter A. (2011). Eddy current tomography of deposits in steam gen-erator. 19th European Signal Processing Conference (EUSIPCO 2011). Barcelona, Spain.
6. Gerasimov V. G., Pokrovskii A. D., Sukhorukov V. V. (1992). Non-destructive testing: in 5 books. Book 3. Electromagnetic testing. Moscow: Vysshaia shkola.
7. Lunin V. P. (1996). The finite element method in problems of applied electrical engineering. Moscow: Izdatel'stvo MEI.

+ - Purchase digital version of a single article Click to collapse

This article is available in electronic format (PDF).

DOI: 10.14489/td.2015.03.pp.030-039

Copy the article DOI and follow the link https://id-spektr.ru/product/pokupka-elektronnoy-stati-iz-zhurnala-kontrol-diagnostika

Please specify the article DOI in the order comments.