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Regular Paper | Open Access

Bubble Changing Features and Buckle of the Free Liquid Surface in Active Oiled Power Transformer Tank

Niyomugabo Emmanuel Ladislas1Qingmin Li1( )Qiushi Liu1Yunpeng Li1Jie Wu2Weimin Huang2
North China Electric Power University, Beijing 102206, China
Electric Power Research Institute, State Grid Anhui Electric Power Company, Hefei 230000, China
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Abstract

This study investigates bubble dynamics and the buckling behavior of free liquid surfaces. Comsol Multiphysics was used to analyze bubble formation and collapse in a rectangular tank. The number of apertures and distance between them were studied to determine their effect on bubble characteristics and interface deformation. In addition, the application comprised information regarding bubble creation, prevalence, and path. It discussed the phenomenon of bubbling based on various heated cavities. There are minutiae concerning coexistence of bubble collapse aftermaths of single, double, and triple inlet cavity sources. Data analysis indicates likelihood of bubble detachment hikes with increasing cavity count. However, bubble leaving frequency decreases with increased source spacing. We realized that growth and bubbles could extend the base by raising wall temperature, but it curtailed bubble removal diameter and time. Whenever an electric field is strong, more bubbles leave the superheated cavity, and bubble size decreases. Fallout shows changes in these geometric criteria considerably impact deformation of free liquid surfaces caused by bubble bursting and other bubble characteristics. The above characteristics of bubbles under combined stress provide an understanding of one source of stream development in the power transformer. Using results from these studies, it is possible to design a device for bubble generation, reliable and efficient.

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CSEE Journal of Power and Energy Systems
Pages 1641-1649

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Cite this article:
Ladislas NE, Li Q, Liu Q, et al. Bubble Changing Features and Buckle of the Free Liquid Surface in Active Oiled Power Transformer Tank. CSEE Journal of Power and Energy Systems, 2026, 12(3): 1641-1649. https://doi.org/10.17775/CSEEJPES.2022.05350

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Received: 11 August 2022
Revised: 10 October 2022
Accepted: 06 December 2022
Published: 27 June 2023
© 2022 CSEE.

This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).