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dc.contributor.authorHelfer, Fernandaen_US
dc.contributor.authorLemckert, Charlesen_US
dc.contributor.authorZhang, Hongen_US
dc.date.accessioned2017-04-04T19:48:52Z
dc.date.available2017-04-04T19:48:52Z
dc.date.issued2012en_US
dc.date.modified2013-05-30T05:03:41Z
dc.identifier.issn00221694en_US
dc.identifier.doi10.1016/j.jhydrol.2012.03.020en_US
dc.identifier.urihttp://hdl.handle.net/10072/46754
dc.description.abstractAir-bubble plumes have been used primarily for water quality management through destratification; however, their impact on evaporation rates is yet to be formally quantified. In this paper, the influence of these systems on evaporation from water bodies is investigated. Evaporation, temperature, humidity and wind data were collected and analysed from a laboratory experiment for various air-flow rates injected into non-stratified water. It was found that aeration by air-bubble plumes increases evaporation in their direct vicinity. The factors involved in this increase were identified, and an empirical formula to quantify the loss of water under conditions of aeration was derived. To examine their overall impact on reservoirs, a temperate reservoir in Australia was taken as example for the application of this function. While laboratory data showed that aeration plays an important role in increasing loss of water from small non-stratified water bodies (such as water tanks) for real reservoirs, the effects of aeration on evaporation increase are insignificant. This is because the area of the plume to that of the reservoir is significantly less in real reservoirs than in water tanks. Additionally, due to thermal stratification conditions in real reservoirs, aeration by bubble plumes actually causes a slight reduction in evaporation due to reduction in reservoir surface temperatures as a result of the mixing process. Therefore, the net effect of air-bubble plume aeration on real reservoirs is a reduction in evaporation. However, this quantity was shown to be minor, and does not warrant the use of these systems for the sole purpose of reducing evaporation.en_US
dc.description.peerreviewedYesen_US
dc.description.publicationstatusYesen_US
dc.format.extent514165 bytes
dc.format.mimetypeapplication/pdf
dc.languageEnglishen_US
dc.language.isoen_US
dc.publisherElsevier BVen_US
dc.publisher.placeNetherlandsen_US
dc.relation.ispartofstudentpublicationYen_US
dc.relation.ispartofpagefrom84en_US
dc.relation.ispartofpageto96en_US
dc.relation.ispartofjournalJournal of Hydrologyen_US
dc.relation.ispartofvolume438-439en_US
dc.rights.retentionYen_US
dc.subject.fieldofresearchWater Resources Engineeringen_US
dc.subject.fieldofresearchcode090509en_US
dc.titleInfluence of bubble plumes on evaporation from non-stratified watersen_US
dc.typeJournal articleen_US
dc.type.descriptionC1 - Peer Reviewed (HERDC)en_US
dc.type.codeC - Journal Articlesen_US
gro.facultyGriffith Sciences, Griffith School of Engineeringen_US
gro.rights.copyrightCopyright 2012 Elsevier B.V.. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.en_US
gro.date.issued2012
gro.hasfulltextFull Text


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