EFFECT OF ULTRASOUND ON SCALE FORMATION AND CORROSION PROTECTION OF THE HEAT EXCHANGE SURFACE

  • N.A. Bilousova National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • Yu.S. Herasymenko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • R.M. Red’ko National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
  • N.Yu. Yatsishina National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
Keywords: ultrasound, scale formation, corrosion rate

Abstract

The processes of scale formation and corrosion on the surface of heat exchange using ultrasound with a frequency of 26.5 kHz of low power in the provisional and transient modes and without it were studied. The functional dependences of the build-up of the specific mass of the scale and the corrosion rate are established, depending on the ultrasonic irradiation regimes. The morphology and structure of the scaled layers formed by the scanning electron microscopy method are studied. It has been established that ultrasonic treatment of low intensity promotes the formation and maintenance of a phase microlayer with anticorrosion properties, which practically does not reduce the heat exhange between the metal surface and the coolant. Bibl. 8, Fig. 8.

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Author Biographies

N.A. Bilousova, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Candidate of Technical Sciences

Yu.S. Herasymenko, National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv

Doctor of Technical Sciences, Professor

References

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Published
2017-03-20
How to Cite
Bilousova, N., Herasymenko, Y., Red’ko, R., & Yatsishina, N. (2017). EFFECT OF ULTRASOUND ON SCALE FORMATION AND CORROSION PROTECTION OF THE HEAT EXCHANGE SURFACE. Energy Technologies & Resource Saving, (3), 35-41. https://doi.org/10.33070/etars.3.2017.04
Section
Raw material processing and resource saving