An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation

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dc.contributor.advisorLazarus, JHen_ZA
dc.contributor.authorBerg, R Raineren_ZA
dc.date.accessioned2014-10-11T11:54:45Z
dc.date.available2014-10-11T11:54:45Z
dc.date.issued1991en_ZA
dc.descriptionBibliography: leaves 75-79.en_ZA
dc.description.abstractThis dissertation covers an investigation on airlift pumps operating in three phase flow. The investigation is specifically geared towards offshore diamond reclamation and the three phases considered are air, water and marine gravels. The purpose of the research was to develop an analytical technique to simulate mathematically an offshore airlift pump being used in the recovery of diamondiferous marine gravels. This analytical technique is incorporated into computer software which can be used to simulate prototype airlift installations in a CAD (computer aided design) environment. Extensive laboratory work has been conducted on both a 90 mm and 40 mm diameter airlift pump test facility. This investigation involved the measurement of specific components required for the theoretical simulation. Also monitored were airlift pump delivered outputs and behaviour under various operating conditions. Using this information, the proposed mathematical model was formulated, evaluated and compared with other mathematical models presented in the literature. The theoretical approach, which is based on a balance of external and internal pressures, proved successful and theoretically predicted solid and liquid output flow rates compared favourably with measured solid and liquid output flow rates. Furthermore, the computer software which was subsequently developed is presently being used in the diamond mining industry to model prototype airlift pumps. A sensitivity analysis was performed to establish the effect of all the variables used in the mathematical model.en_ZA
dc.identifier.apacitationBerg, R. R. (1991). <i>An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation</i>. (Thesis). University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering. Retrieved from http://hdl.handle.net/11427/8298en_ZA
dc.identifier.chicagocitationBerg, R Rainer. <i>"An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation."</i> Thesis., University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1991. http://hdl.handle.net/11427/8298en_ZA
dc.identifier.citationBerg, R. 1991. An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation. University of Cape Town.en_ZA
dc.identifier.ris TY - Thesis / Dissertation AU - Berg, R Rainer AB - This dissertation covers an investigation on airlift pumps operating in three phase flow. The investigation is specifically geared towards offshore diamond reclamation and the three phases considered are air, water and marine gravels. The purpose of the research was to develop an analytical technique to simulate mathematically an offshore airlift pump being used in the recovery of diamondiferous marine gravels. This analytical technique is incorporated into computer software which can be used to simulate prototype airlift installations in a CAD (computer aided design) environment. Extensive laboratory work has been conducted on both a 90 mm and 40 mm diameter airlift pump test facility. This investigation involved the measurement of specific components required for the theoretical simulation. Also monitored were airlift pump delivered outputs and behaviour under various operating conditions. Using this information, the proposed mathematical model was formulated, evaluated and compared with other mathematical models presented in the literature. The theoretical approach, which is based on a balance of external and internal pressures, proved successful and theoretically predicted solid and liquid output flow rates compared favourably with measured solid and liquid output flow rates. Furthermore, the computer software which was subsequently developed is presently being used in the diamond mining industry to model prototype airlift pumps. A sensitivity analysis was performed to establish the effect of all the variables used in the mathematical model. DA - 1991 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PB - University of Cape Town PY - 1991 T1 - An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation TI - An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation UR - http://hdl.handle.net/11427/8298 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/8298
dc.identifier.vancouvercitationBerg RR. An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation. [Thesis]. University of Cape Town ,Faculty of Engineering & the Built Environment ,Department of Civil Engineering, 1991 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/8298en_ZA
dc.language.isoeng
dc.publisher.departmentDepartment of Civil Engineeringen_ZA
dc.publisher.facultyFaculty of Engineering and the Built Environment
dc.publisher.institutionUniversity of Cape Town
dc.subject.otherCivil Engineeringen_ZA
dc.titleAn analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamationen_ZA
dc.typeDoctoral Thesis
dc.type.qualificationlevelDoctoral
dc.type.qualificationnamePhDen_ZA
uct.type.filetypeText
uct.type.filetypeImage
uct.type.publicationResearchen_ZA
uct.type.resourceThesisen_ZA
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