Experimental study results of the electrostatic fields influence on sedimentation process in the MS-20 aviation motor oil under conditions of its forced convection in the annular channel
Published: 16.10.2025
Authors: Altunin V.A., Lvov M.V., Altunin K.V., Yusupov A.A., Shchigolev A.A., Yanovskaya M.L.
Published in issue: #10(166)/2025
DOI: 10.18698/2308-6033-2025-10-2486
Category: Aviation and Rocket-Space Engineering | Chapter: Thermal, Electric Jet Engines, and Power Plants of Aircrafts
The paper presents experimental study results of the electrostatic fields influence on deposition process in the MS-20 aviation motor oil under conditions of its forced convection in the narrow annular channel using a system of the “needle–needle” working electrodes positioned perpendicular to the oil flow. The paper shows that solid carbon is not depositing in the passage zone of the electrostatic field force lines. It reveals complex thermodynamic conditions of the aviation motor oils in the aircraft engine and power plant lubrication systems. Negative deposition impact on operation of the aircraft engine and power plant lubrication systems is analyzed. The paper shows capabilities of the electrostatic fields when used to combat deposition in the aviation motor oils under conditions of their forced convection in the narrow annular channel. They include simultaneous cut-in with the experimental setup; late cut-in; pulsed cut-in with or without polarity reversal on the working coaxial needles. The paper provides a complete classification of the existing and promising (new) methods and techniques for combating deposit formation in the aircraft engine and power plant lubrication systems. An experimental database has been created on the electrostatic fields capabilities to prevent, limit, and slow the hard carbon deposit growth on the heated parts under forced convection conditions of the aviation motor oils in lubrication systems of the domestic aircraft engines and power plants. Application of the materials provided in this paper would contribute to expansion and deepening the knowledge about deposit formation and methods for combating it in the new and promising lubrication systems of the domestic high-performance aircraft engines and power plants.
EDN MPJGDM
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