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An Experimental Determination of the Heat-Transfer Coefficients in the Channels of a Turbogenerator Stator with air and Hydrogen Cooling

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Power Technology and Engineering Aims and scope

The heat transfer coefficients in the ventilation channels of a turbogenerator stator of new construction, containing slot-shaped axial channels in the teeth, are investigated. Experiments are carried out on a full-scale physical model with air cooling and on a turbogenerator with hydrogen cooling. In the latter case, active heat-transfer sensors, simulating the slot-shaped channels, are built in to the circulation circuit of the cooling gas of a commercial turbogenerator with hydrogen cooling when it was undergoing bench testing. The results of the experiments can be used when designing high-power turbogenerators with total gas cooling.

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References

  1. RF Pat. No. 2350006, O. V. Antonyuk, E. N. Gurevich, T. N. Kartashova and Yu. V. Pafomov, “An electrical machine stator.”

  2. O. Antonjuk, T. Kartashova and M. Roytgarts, “Series of air-cooled turbogenerators of power up to 410 MV · A,” in: Int. Conf. POWER-GEN Europe, Cologne, Germany (2009).

  3. E. I. Gurevich and N. D. Pinchuk, “Experimental study of the new stator construction of the power air-cooled turbogenerator,” in: CIGRE-2008.

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  5. E. I. Gurevich, A. A. Lyamin and I. S. Shelemba, “Experience in measuring the temperature of a stator winding with optical fiber sensors in bench tests of a turbogenerator,” Élektr. Stantsii, No. 4 (2010).

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Authors and Affiliations

  1. JSC “Power Machines” —Branch “Elektrosila,”, St. Petersburg, Russia

    O. V. Antonyuk & Yu. V. Pafomov

  2. St. Petersburg State Polytechnic University, St. Petersburg, Russia

    Z. I. Gurevich

Authors
  1. O. V. Antonyuk
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  2. Z. I. Gurevich
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  3. Yu. V. Pafomov
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Corresponding author

Correspondence to Z. I. Gurevich.

Additional information

Translated from Élektricheskie Stantsii, No. 4, April 2014, pp. 40 – 44.

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Antonyuk, O.V., Gurevich, Z.I. & Pafomov, Y.V. An Experimental Determination of the Heat-Transfer Coefficients in the Channels of a Turbogenerator Stator with air and Hydrogen Cooling. Power Technol Eng 48, 236–240 (2014). https://doi.org/10.1007/s10749-014-0514-x

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  • DOI: https://doi.org/10.1007/s10749-014-0514-x

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