THERMAL SCIENCE

International Scientific Journal

Hamid Outzguinrimt

,

Mouhcine Lahame

,

Boubker Bahani

,

Mohammed Chrayagne

ENHANCING MICROWAVE OVEN PERFORMANCE AND TRANSFORMER QUALITY THROUGH EFFICIENT HIGH VOLTAGE TRANSFORMER COOLING

ABSTRACT
This paper describes a method and device for effectively cooling a high voltage transformer inside a microwave oven, with the aim of swiftly removing heat generated during operation, hence improving both the microwave oven’s and the transformer’s performance and quality. The device incorporates corrugated tank surfaces, electrical connection-lines with protrusions, and epoxy to prevent cooling oil leakage. The transformer is inserted into a designated tank and sealed to separate the coil and core from the outside environment, allowing for better cooling and protection against electrical shock. Additionally, an oil is injected to absorb heat generated by the high temperature of the core and coil. The effectiveness of this method is validated through the finite element method and CFD techniques. Numerical analysis revealed a significant decrease in the maximum temperature rise of the transformer by around 44.2°C. This finding suggests that transformer oil cooling is a more effective method for controlling temperature rise in microwave ovens compared to traditional cooling methods.
KEYWORDS
High voltage transformer, microwave, oil, cooling, heat, temperature
PAPER SUBMITTED: 2023-10-21
PAPER REVISED: 2024-03-01
PAPER ACCEPTED: 2024-03-11
PUBLISHED ONLINE: 2024-05-18
DOI REFERENCE: https://doi.org/10.2298/TSCI231021109O
CITATION EXPORT: view in browser or download as text file
THERMAL SCIENCE YEAR 2024, VOLUME 28, ISSUE Issue 5, PAGES [3893 - 3905]
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Enhancing microwave oven performance and transformer quality through efficient high voltage transformer cooling

© 2024 Society of Thermal Engineers of Serbia. Published by the Vinča Institute of Nuclear Sciences, National Institute of the Republic of Serbia, Belgrade, Serbia. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International licence