Pub Date : 2017-01-01DOI: 10.1109/ICECOS.2017.8167161
I. H. Zakaria, M. H. Ahmad, Z. Abdul-Malek, M. Sidik, Z. Nawawi, M. Jambak
Nanofluids have been identified to be one of the suitable approaches to increase the breakdown strength of transformer oil. However, the nanofluids tend to form sediment which nullifies its full capabilities in increasing the electrical properties such as higher AC breakdown strength. In view of foregoing, this paper presents an approach to enhance the AC breakdown strength of the transformer oil by using plasma treated silica nanoparticles to form plasma treated nanofluids. The surface of silica nanoparticle was functionalized by using atmospheric pressure plasma discharge to enhance the interfacial interaction in order to improve the sedimentation issue in nanofluids. Plasma treated nanoparticles with desired surface functionality can strongly interact with liquid molecules with better dispersed into the base fluid to form a stable suspension. The AC breakdown strength of oil samples before and after surface modification of nanoparticles were measured accordance to IEC 60156 standard. Based on obtained results, it was found that the plasma treated nanofluids had higher AC breakdown voltage compared to the pure oil and the untreated nanofluids.
{"title":"AC breakdown strength performance of plasma treated mineral oil-based nanofluids","authors":"I. H. Zakaria, M. H. Ahmad, Z. Abdul-Malek, M. Sidik, Z. Nawawi, M. Jambak","doi":"10.1109/ICECOS.2017.8167161","DOIUrl":"https://doi.org/10.1109/ICECOS.2017.8167161","url":null,"abstract":"Nanofluids have been identified to be one of the suitable approaches to increase the breakdown strength of transformer oil. However, the nanofluids tend to form sediment which nullifies its full capabilities in increasing the electrical properties such as higher AC breakdown strength. In view of foregoing, this paper presents an approach to enhance the AC breakdown strength of the transformer oil by using plasma treated silica nanoparticles to form plasma treated nanofluids. The surface of silica nanoparticle was functionalized by using atmospheric pressure plasma discharge to enhance the interfacial interaction in order to improve the sedimentation issue in nanofluids. Plasma treated nanoparticles with desired surface functionality can strongly interact with liquid molecules with better dispersed into the base fluid to form a stable suspension. The AC breakdown strength of oil samples before and after surface modification of nanoparticles were measured accordance to IEC 60156 standard. Based on obtained results, it was found that the plasma treated nanofluids had higher AC breakdown voltage compared to the pure oil and the untreated nanofluids.","PeriodicalId":6528,"journal":{"name":"2017 International Conference on Electrical Engineering and Computer Science (ICECOS)","volume":"56 1","pages":"333-337"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74627180","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.1109/ICECOS.2017.8167113
Z. Buntat
A perforated-aluminium plate electrode has been studied with the aim of enhancing the stability of the glow discharge at atmospheric pressure. A proven simulator has been used (Ansoft-Maxwell 2D) and a significant increase in Electric Field Strength (EFS) is observed using perforated aluminium, due to its sharp edges. Meanwhile, practical investigation also shows that the discharge configuration with perforated aluminium can also be acted as a fine wire mesh configuration, which generates a stable glow discharge at atmospheric pressure. In addition, previous work has confirmed that the stability of the glow discharge is not affected by the electric field strength. This kind of perforated-aluminium plate discharge system would be useful as an effective means for surface modification and removing pollutant gases.
{"title":"Generation of a homogeneous glow discharge using perforated aluminium electrode","authors":"Z. Buntat","doi":"10.1109/ICECOS.2017.8167113","DOIUrl":"https://doi.org/10.1109/ICECOS.2017.8167113","url":null,"abstract":"A perforated-aluminium plate electrode has been studied with the aim of enhancing the stability of the glow discharge at atmospheric pressure. A proven simulator has been used (Ansoft-Maxwell 2D) and a significant increase in Electric Field Strength (EFS) is observed using perforated aluminium, due to its sharp edges. Meanwhile, practical investigation also shows that the discharge configuration with perforated aluminium can also be acted as a fine wire mesh configuration, which generates a stable glow discharge at atmospheric pressure. In addition, previous work has confirmed that the stability of the glow discharge is not affected by the electric field strength. This kind of perforated-aluminium plate discharge system would be useful as an effective means for surface modification and removing pollutant gases.","PeriodicalId":6528,"journal":{"name":"2017 International Conference on Electrical Engineering and Computer Science (ICECOS)","volume":"88 1","pages":"10-15"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86201422","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-01-01DOI: 10.1109/ICECOS.2017.8167152
N. Awang, M. H. Ahmad, Z. A. Malek, M. Sidik, Z. Nawawi, M. Jambak, E. P. Waldi, Aulia
Polymer nanocomposites have been identified to possess superior electrical insulation properties compared to its base polymer. However, weak interfacial interaction between the nanoparticles and the host polymer matrices would result in poor insulation properties. In this study, the surfaces of Boron Nitride (BN) nanoparticles were treated with atmospheric pressure plasma discharge to strengthen the interface between the low density polyethylene (LDPE) matrices and BN nanoparticles. Furthermore, AC breakdown strengths of the untreated and treated LDPE nanocomposites were measured according to ASTM D149 standard. The obtained results were analyzed with 2-parameter Weilbull distribution. Moreover, the treated and untreated nanocomposites were characterized using Fourier Transform Infrared (FTIR) Spectroscopy in order to characterize the functional groups in LDPE nanocomposite samples after subjected to plasma discharges. It is shown that hydrogen bonds are created in the functional groups of the plasma treated LDPE nanocomposites. The results also show that the AC breakdown strength of plasma treated LDPE nanocomposites sample was improved compared with the untreated LDPE nanocomposites.
{"title":"AC breakdown strength enhancement of LDPE nanocomposites using atmospheric pressure plasma","authors":"N. Awang, M. H. Ahmad, Z. A. Malek, M. Sidik, Z. Nawawi, M. Jambak, E. P. Waldi, Aulia","doi":"10.1109/ICECOS.2017.8167152","DOIUrl":"https://doi.org/10.1109/ICECOS.2017.8167152","url":null,"abstract":"Polymer nanocomposites have been identified to possess superior electrical insulation properties compared to its base polymer. However, weak interfacial interaction between the nanoparticles and the host polymer matrices would result in poor insulation properties. In this study, the surfaces of Boron Nitride (BN) nanoparticles were treated with atmospheric pressure plasma discharge to strengthen the interface between the low density polyethylene (LDPE) matrices and BN nanoparticles. Furthermore, AC breakdown strengths of the untreated and treated LDPE nanocomposites were measured according to ASTM D149 standard. The obtained results were analyzed with 2-parameter Weilbull distribution. Moreover, the treated and untreated nanocomposites were characterized using Fourier Transform Infrared (FTIR) Spectroscopy in order to characterize the functional groups in LDPE nanocomposite samples after subjected to plasma discharges. It is shown that hydrogen bonds are created in the functional groups of the plasma treated LDPE nanocomposites. The results also show that the AC breakdown strength of plasma treated LDPE nanocomposites sample was improved compared with the untreated LDPE nanocomposites.","PeriodicalId":6528,"journal":{"name":"2017 International Conference on Electrical Engineering and Computer Science (ICECOS)","volume":"39 1","pages":"290-294"},"PeriodicalIF":0.0,"publicationDate":"2017-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90723093","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：