Related Experiment Video
Updated: Jun 29, 2025
16:19
High Throughput Single-cell and Multiple-cell Micro-encapsulation
Published on: June 15, 2012
18.7K
Exploring the surge current degradation of natural ester oil-based nanofluids
Thomas Tsovilis1, George Peppas2, Evangelos Staikos3
1High Voltage Laboratory, School of Electrical and Computer Engineering, Aristotle University of Thessaloniki, 54124, Thessaloniki, Greece. tsovilis@auth.gr.
Scientific Reports
|March 30, 2024
Summary
Natural ester oil-based nanofluids show promising surge endurance for power applications. These advanced fluids can potentially serve as multipurpose insulating and coolant liquids with surge absorption capabilities.
Area of Science:
- Materials Science
- Electrical Engineering
- Nanotechnology
Background:
- Mineral oil is the conventional insulating liquid in power transformers.
- There is a need for advanced dielectric fluids with enhanced properties, including surge absorption.
- Natural ester oils offer environmental benefits but require further performance evaluation.
Purpose of the Study:
- To investigate the surge endurance of natural ester oil-based nanofluids.
- To evaluate the potential of these nanofluids as multipurpose liquids (insulation, coolant, surge absorption).
- To compare the performance of nanofluids with conventional mineral oil.
Main Methods:
- Experimental investigation of natural ester oil-based iron oxide nanofluids.
- Dielectric spectroscopy measurements to analyze complex relative permittivity.
- Accelerated degradation test using repetitive current impulses (12 kV/6 kA combination wave generator).
Main Results:
- Iron oxide nanofluids demonstrated promising surge endurance under repetitive impulse stress.
- Alterations in the real and imaginary parts of complex relative permittivity were analyzed.
- Experimental results indicate potential advantages over conventional mineral oil.
Conclusions:
- Natural ester oil-based nanofluids exhibit potential as effective surge absorption media.
- These nanofluids could offer a multipurpose solution for power transformer applications.
- Further research is warranted to fully explore their implementation in power systems.
