The discontinuity required at an air valve or vent for effective pipeline de-aeration
The location and sizing of air valves to ensure effective de-aeration of pipelines and to provide vacuum break capability was researched. Based on these findings, software was developed to evaluate gravity and pumping systems. A sound understanding of the factors affecting the hydraulic transportation of air in a pipeline is paramount for locating air valves. When air is hydraulically transported to the position of release from the pipeline, it is necessary that the free air should be intercepted by a discontinuity and expelled via an air valve or vent arrangement. Research information on the layout and dimensioning of the discontinuity to ensure the interception of air in pipelines is lacking. This paper discusses experimental and numerical model assessments undertaken to compile provisional guidelines for determining the dimensions of the required discontinuity.
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South African Institution of Civil Engineering
2012
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oai:scielo:S1021-201920120002000112013-04-09The discontinuity required at an air valve or vent for effective pipeline de-aerationvan Vuuren,S Jvan Dijk,MThe location and sizing of air valves to ensure effective de-aeration of pipelines and to provide vacuum break capability was researched. Based on these findings, software was developed to evaluate gravity and pumping systems. A sound understanding of the factors affecting the hydraulic transportation of air in a pipeline is paramount for locating air valves. When air is hydraulically transported to the position of release from the pipeline, it is necessary that the free air should be intercepted by a discontinuity and expelled via an air valve or vent arrangement. Research information on the layout and dimensioning of the discontinuity to ensure the interception of air in pipelines is lacking. This paper discusses experimental and numerical model assessments undertaken to compile provisional guidelines for determining the dimensions of the required discontinuity.South African Institution of Civil EngineeringJournal of the South African Institution of Civil Engineering v.54 n.2 20122012-01-01journal articletext/htmlhttp://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192012000200011en |
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van Vuuren,S J van Dijk,M |
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van Vuuren,S J van Dijk,M The discontinuity required at an air valve or vent for effective pipeline de-aeration |
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van Vuuren,S J van Dijk,M |
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van Vuuren,S J |
| title |
The discontinuity required at an air valve or vent for effective pipeline de-aeration |
| title_short |
The discontinuity required at an air valve or vent for effective pipeline de-aeration |
| title_full |
The discontinuity required at an air valve or vent for effective pipeline de-aeration |
| title_fullStr |
The discontinuity required at an air valve or vent for effective pipeline de-aeration |
| title_full_unstemmed |
The discontinuity required at an air valve or vent for effective pipeline de-aeration |
| title_sort |
discontinuity required at an air valve or vent for effective pipeline de-aeration |
| description |
The location and sizing of air valves to ensure effective de-aeration of pipelines and to provide vacuum break capability was researched. Based on these findings, software was developed to evaluate gravity and pumping systems. A sound understanding of the factors affecting the hydraulic transportation of air in a pipeline is paramount for locating air valves. When air is hydraulically transported to the position of release from the pipeline, it is necessary that the free air should be intercepted by a discontinuity and expelled via an air valve or vent arrangement. Research information on the layout and dimensioning of the discontinuity to ensure the interception of air in pipelines is lacking. This paper discusses experimental and numerical model assessments undertaken to compile provisional guidelines for determining the dimensions of the required discontinuity. |
| publisher |
South African Institution of Civil Engineering |
| publishDate |
2012 |
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http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192012000200011 |
| work_keys_str_mv |
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