Charged particles produced by corona emission from an overhead high voltage powerline
Fatokun, Folasade, Jayaratne, Rohan, Morawska, Lidia, Rachman, Rihandanu, & Birtwhistle, David (2007) Charged particles produced by corona emission from an overhead high voltage powerline. In 14th IUAPPA World Congress : Clean Air Partnerships: Coming Together for Clean Air : Brisbane 2007 : Conference Proceedings, Incorporating the 18th CASANZ Conference Hosted by the Clean Air Society of Australia and New Zealand, Brisbane Convention & Exhibition Centre, Brisbane, Queensland, Australia.
High voltage powerlines may give rise to corona breakdown, resulting in the release of large concentrations of charged ions into the surrounding environment. These ions quickly attach to aerosols and the resulting charged particles are carried by prevalent winds. This paper describes a study carried out at a site near an overhead double circuit ac transmission voltage powerline to investigate factors that control the rate at which charged particles are produced, and to determine the total particle number concentrations, total particle charge concentrations and vertical dc electric fields in the proximity of the line. Measured mean values of these three parameters at a perpendicular distance of 50m from the line were 1.8 x 103 particle cm-3, 518 ions cm3 and 520 V m-1 respectively. The net electric charge was positive and the electric field was directed downwards. These parameters were correlated with each other and monitored at four different distances from the line. Effects of meteorological parameters such as wind speed and wind direction were also investigated.
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|Item Type:||Conference Paper|
|Keywords:||corona ions, power lines, charged particles, small ions|
|Subjects:||Australian and New Zealand Standard Research Classification > EARTH SCIENCES (040000) > ATMOSPHERIC SCIENCES (040100) > Atmospheric Aerosols (040101)
Australian and New Zealand Standard Research Classification > ENVIRONMENTAL SCIENCES (050000) > ENVIRONMENTAL SCIENCE AND MANAGEMENT (050200) > Environmental Monitoring (050206)
Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > ELECTRICAL AND ELECTRONIC ENGINEERING (090600) > Power and Energy Systems Engineering (excl. Renewable Power) (090607)
|Divisions:||Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Schools > School of Electrical Engineering & Computer Science
Current > Institutes > Institute of Health and Biomedical Innovation
Current > QUT Faculties and Divisions > Science & Engineering Faculty
|Copyright Owner:||Copyright 2007 Please consult the authors|
|Deposited On:||17 Aug 2014 22:32|
|Last Modified:||19 Aug 2014 09:16|
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