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Investigation on Diffusion Mechanisms of Methanol in Paper/Oil Insulation Based on Molecular Dynamics Simulation
- Source :
- IEEE Access, Vol 9, Pp 13368-13377 (2021)
- Publication Year :
- 2021
- Publisher :
- Institute of Electrical and Electronics Engineers (IEEE), 2021.
-
Abstract
- Methanol is regarded as an available indicator to analyze the aging condition of cellulose insulation. However, the diffusion mechanism of methanol molecules in the paper-oil insulation system is still unclear, since it cannot be explored by using only experiments. Given this issue, the molecular dynamics simulations were performed to investigate the diffusion mechanism of methanol molecules. In the current work, the mean square displacement of methanol during the diffusion process was calculated and analyzed, as well as its trajectory tracking. Then, the research on interaction energies and hydrogen bonds in paper/oil system were conducted. Finally, the effect of temperature on the diffusion of methanol molecules was also studied. Findings revealed that the diffusion of methanol in cellulose insulation is faster than that in insulating oil, besides, the presence of hydrogen bonds affects the diffusion rate of methanol molecules in cellulose insulation and insulating oil. Thus, the present findings could support the investigation of the diffusion mechanisms of methanol molecules, by which the aging condition evaluation of cellulose insulation could be also promoted.
- Subjects :
- Materials science
General Computer Science
Hydrogen
Transformer oil
020209 energy
Diffusion
chemistry.chemical_element
02 engineering and technology
01 natural sciences
chemistry.chemical_compound
Molecular dynamics
Insulation system
0103 physical sciences
0202 electrical engineering, electronic engineering, information engineering
General Materials Science
Cellulose insulation
methanol
010302 applied physics
diffusion mechanisms
General Engineering
molecular dynamics simulation
chemistry
Diffusion process
Chemical engineering
lcsh:Electrical engineering. Electronics. Nuclear engineering
Methanol
lcsh:TK1-9971
Subjects
Details
- ISSN :
- 21693536
- Volume :
- 9
- Database :
- OpenAIRE
- Journal :
- IEEE Access
- Accession number :
- edsair.doi.dedup.....ca6418629bab149c9caa73d7cdb84598