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An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation
Bibliography: leaves 75-79.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Department of Civil Engineering
2014
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| _version_ | 1867613230526889985 |
|---|---|
| access_status_str | Open Access |
| author | Berg, R Rainer |
| author2 | Lazarus, JH |
| author_browse | Berg, R Rainer Lazarus, JH |
| author_facet | Lazarus, JH Berg, R Rainer |
| author_sort | Berg, R Rainer |
| collection | Thesis |
| description | Bibliography: leaves 75-79. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/8298 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:50.328Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Department of Civil Engineering |
| publisherStr | Department of Civil Engineering |
| record_format | dspace |
| source_str | UCTD — University of Cape Town Open Access Repository |
| spelling | oai:open.uct.ac.za:11427/8298 An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation Berg, R Rainer Lazarus, JH Civil Engineering Bibliography: leaves 75-79. 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. 2014-10-11T11:54:45Z 2014-10-11T11:54:45Z 1991 Doctoral Thesis Doctoral PhD http://hdl.handle.net/11427/8298 eng application/pdf Department of Civil Engineering Faculty of Engineering and the Built Environment University of Cape Town |
| spellingShingle | Civil Engineering Berg, R Rainer An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| thesis_degree_str | Doctoral |
| title | An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| title_full | An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| title_fullStr | An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| title_full_unstemmed | An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| title_short | An analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| title_sort | analytical and experimental investigation of three phase flow in airlift pumps used for diamondiferous marine gravel reclamation |
| topic | Civil Engineering |
| url | http://hdl.handle.net/11427/8298 |
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