MODELING OF GROWTH AND EVALUATION ANTICORROSIVE PROPERTIES OF SCALE

  • 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
  • I.Yu. Vichkan National Technical University of Ukraine «Igor Sikorsky Kyiv Polytechnic Institute», Kyiv
Keywords: scale, scale growth rate, antiscalant, corrosion rate

Abstract

The work concerns investigation of scale formation in the mode of boiler water with high hardness and definition of efficiency anticorrosive antiscalant action. The experimental setup and method of determining the specific rate of scale formation and steel corrosion rates under controlled water supply, which provides a constant concentration of hardness salts, and a maximum rate of scale deposition, as well as the constancy of the concentration of antiscalant were developed. The functional dependencies of the specific scale mass gains in time for the investigated antiscalant HEDP, LWCh-1.1 (based on organophosphonates) and SeaQuest (based on polyphosphate) are linear. The structure and anticorrosive properties of the formed scale depend not only on the nature and concentration of antiscalant, but also from the fresh water replenishment rate. In comparative tests with the same concentrations of reactants it found that the best inhibitory and anti-scale properties have HEDP in the water with hardness of 20.2 mM/dm3. The developed technique and produced dependencies allow predicting antiscale and anticorrosive action of reagents for boiler of small power plants that operate without water treatment during the heating season. Bibl. 11, Fig. 4.

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

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Published
2016-06-20
How to Cite
Bilousova, N., Herasymenko, Y., Red’ko, R., & Vichkan, I. (2016). MODELING OF GROWTH AND EVALUATION ANTICORROSIVE PROPERTIES OF SCALE. Energy Technologies & Resource Saving, (2), 37-43. Retrieved from https://etars-journal.org/index.php/journal/article/view/119
Section
Raw material processing and resource saving