ON THE PROBLEM OF THE MATHEMATICAL MODELING OF THE 550 MW HYDROGEN-COOLED TURBOGENERATOR ROTOR THERMAL STATE

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DOI https://doi.org/10.15407/pmach2017.03.019
Journal Journal of Mechanical Engineering
Publisher A. Podgorny Institute for Mechanical Engineering Problems
National Academy of Science of Ukraine
ISSN 0131-2928 (Print), 2411-0779 (Online)
Issue Vol. 20, no. 3, 2017 (September)
Pages 19-24
Cited by J. of Mech. Eng., 2017, vol. 20, no. 3, pp. 19-24

 

Author

Ye. A. Ovsyannikova,  SE Plant Electrotyazhmash (299, Moskovsky Ave., Kharkov, 61089, Ukraine), National Aerospace University “KhAI” (17, Chkalov St., Kharkov, 61070, Ukraine), e-mail: olena.ovsyanikova@gmail.com

 

Abstract

A simulation of the thermal state of the rotor nodes of a 550 MW synchronous turbogenerator with direct cooling of the windings with hydrogen is performed. The temperature field of the rotor is investigated using the finite element method in a three-dimensional formulation. Correlations for determining the heat transfer coefficients obtained by different scientists during a series of experiments are given. The correlation that ensures the consistency of the calculated and test temperature distributions in the rotor is chosen.

 

Keywords: turbogenerator, rotor winding, thermal state, finite element method

 

References

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Received 27 June 2017

Published 30 September 2017