Title:
Effect of Pressurization and Expulsion of Entrapped Air in Pipelines

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dc.contributor.advisor Martin, C. Samuel
dc.contributor.author Lee, Nahm Ho en_US
dc.contributor.committeeMember Moody,Frederick
dc.contributor.committeeMember Robert, Philip
dc.contributor.committeeMember Sturm,Terry
dc.contributor.committeeMember Wiggert,David
dc.contributor.department Engineering en_US
dc.contributor.department Civil and Environmental Engineering
dc.date.accessioned 2006-09-01T19:46:44Z
dc.date.available 2006-09-01T19:46:44Z
dc.date.issued 2005-07-20 en_US
dc.description.abstract Analytical and experimental laboratory studies were conducted for rapid pressurizing of entrapped gas at the end of a horizontal liquid pipeline. In this paper analytical and experimental model study are presented for pressurizing entrapped gas pocket at the end of a liquid column in a horizontal pipeline. Analytical models are considered such as (1) acoustic effect of both liquid and gas side, (2) variation of liquid length, and (3) thermal damping process. Closed form of solutions were derived for a lumped liquid and lumped gas model if pipeline is a horizontal. Experiments were conducted to verify the analytical models. Comparison of analytical and experimental model results were presented. Analytical model was developed to define the physics behind the gas venting case. Experiments were conducted for a range of orifice sizes from 1/16 to of the pipe diameter with reservoir pressure two, three and four times of ambient pressure for five different pipe configurations. Experimental results confirm the assumption of modified entrapped air model is correct. en_US
dc.description.degree Ph.D. en_US
dc.format.extent 9910062 bytes
dc.format.mimetype application/pdf
dc.identifier.uri http://hdl.handle.net/1853/11643
dc.language.iso en_US
dc.publisher Georgia Institute of Technology en_US
dc.subject Thermal damping en_US
dc.subject Transients
dc.subject Waterhammer
dc.subject Entrapped air
dc.title Effect of Pressurization and Expulsion of Entrapped Air in Pipelines en_US
dc.type Text
dc.type.genre Dissertation
dspace.entity.type Publication
local.contributor.corporatename School of Civil and Environmental Engineering
local.contributor.corporatename College of Engineering
relation.isOrgUnitOfPublication 88639fad-d3ae-4867-9e7a-7c9e6d2ecc7c
relation.isOrgUnitOfPublication 7c022d60-21d5-497c-b552-95e489a06569
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