Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids
This article presents the experimental studies carried out on the environmental friendly polyol ester insulating liquids to investigate the effect of molecular structure on the physical, chemical, and electrical properties. Six different polyol esters that can be produced from the transesterificatio...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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American Oil Chemists' Society
2019
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| Online Access: | http://psasir.upm.edu.my/id/eprint/16009/1/Effects%20of%20molecular%20structure%20on%20the%20physical%2C%20chemical%2C%20and%20electrical%20properties%20of%20ester%E2%80%90based%20transformer%20insulating%20liquids.pdf |
| _version_ | 1796968967339769856 |
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| author | Abdul Raof, Nurliyana Yunus, Robiah Rashid, Umer Azis, Norhafiz Yaakub, Zaini |
| author_facet | Abdul Raof, Nurliyana Yunus, Robiah Rashid, Umer Azis, Norhafiz Yaakub, Zaini |
| author_sort | Abdul Raof, Nurliyana |
| collection | UPM |
| description | This article presents the experimental studies carried out on the environmental friendly polyol ester insulating liquids to investigate the effect of molecular structure on the physical, chemical, and electrical properties. Six different polyol esters that can be produced from the transesterification of various methyl esters with neopentylglycol/trimethylolpropane alcohols were synthesized and compared with those of refined, bleached, and deodorized palm oil (RBDPO) and mineral transformer oil. The finding suggests that the physical properties like fire point, pour point, and viscosity are very much affected by the molecular weight and molecular composition of the polyol esters. The electrical properties are also highly influenced by the molecular structure‐related characteristics, such as the polarity, dipole polarization, carbon chain length, and degree of branching. The results confirm the findings of previous studies that the polyol esters and RBDPO have more polarity and dipole polarization compared to mineral oil. The experimental evidence showed that the newly synthesized insulating liquids have favorable thermal and electrical properties, thus suggesting that the insulating liquids have the potential to replace conventional insulating liquids to provide a more sustainable power system in the future. |
| first_indexed | 2024-03-06T07:36:03Z |
| format | Article |
| id | upm.eprints-16009 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T07:36:03Z |
| publishDate | 2019 |
| publisher | American Oil Chemists' Society |
| record_format | dspace |
| spelling | upm.eprints-160092019-11-12T03:16:43Z http://psasir.upm.edu.my/id/eprint/16009/ Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids Abdul Raof, Nurliyana Yunus, Robiah Rashid, Umer Azis, Norhafiz Yaakub, Zaini This article presents the experimental studies carried out on the environmental friendly polyol ester insulating liquids to investigate the effect of molecular structure on the physical, chemical, and electrical properties. Six different polyol esters that can be produced from the transesterification of various methyl esters with neopentylglycol/trimethylolpropane alcohols were synthesized and compared with those of refined, bleached, and deodorized palm oil (RBDPO) and mineral transformer oil. The finding suggests that the physical properties like fire point, pour point, and viscosity are very much affected by the molecular weight and molecular composition of the polyol esters. The electrical properties are also highly influenced by the molecular structure‐related characteristics, such as the polarity, dipole polarization, carbon chain length, and degree of branching. The results confirm the findings of previous studies that the polyol esters and RBDPO have more polarity and dipole polarization compared to mineral oil. The experimental evidence showed that the newly synthesized insulating liquids have favorable thermal and electrical properties, thus suggesting that the insulating liquids have the potential to replace conventional insulating liquids to provide a more sustainable power system in the future. American Oil Chemists' Society 2019 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/16009/1/Effects%20of%20molecular%20structure%20on%20the%20physical%2C%20chemical%2C%20and%20electrical%20properties%20of%20ester%E2%80%90based%20transformer%20insulating%20liquids.pdf Abdul Raof, Nurliyana and Yunus, Robiah and Rashid, Umer and Azis, Norhafiz and Yaakub, Zaini (2019) Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids. Journal of the American Oil Chemists' Society, 96 (5). pp. 607-616. ISSN 0003-021X; ESSN: 1558-9331 https://aocs.onlinelibrary.wiley.com/doi/abs/10.1002/aocs.12212 10.1002/aocs.12212 |
| spellingShingle | Abdul Raof, Nurliyana Yunus, Robiah Rashid, Umer Azis, Norhafiz Yaakub, Zaini Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title | Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title_full | Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title_fullStr | Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title_full_unstemmed | Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title_short | Effects of molecular structure on the physical, chemical, and electrical properties of ester‐based transformer insulating liquids |
| title_sort | effects of molecular structure on the physical chemical and electrical properties of ester based transformer insulating liquids |
| url | http://psasir.upm.edu.my/id/eprint/16009/1/Effects%20of%20molecular%20structure%20on%20the%20physical%2C%20chemical%2C%20and%20electrical%20properties%20of%20ester%E2%80%90based%20transformer%20insulating%20liquids.pdf |
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