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.
Main Authors: | van Vuuren,S J, van Dijk,M |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
South African Institution of Civil Engineering
2012
|
Online Access: | http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S1021-20192012000200011 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Evaluation of air vents and ramp angles on the performance of orifice spillway aerators
by: Sarwar, M.K., et al.
Published: (2016) -
Agricultural irrigation equipment. Irrigation valves. Pt. 1: General requirements.- pt. 2: Isolating valves.- pt. 3: Check valves.- pt. 4: Air valves.- pt. 5: Control valves
by: International Organization for Standardization, Geneva (Switzerland) eng
Published: (2006) -
The opening of vents like decompression valves of the hydrothermal system at Turrialba volcano, Costa Rica
by: Avard, Geoffroy, et al.
Published: (2013-07-24) -
The effects of agricultural practices on soil aeration
by: McAfee Graham, M.
Published: (1989) -
Effect of aeration on biodegradation of petroleum waste
by: Ururahy,Adriana F. P., et al.
Published: (1998)