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Performance evaluation of a solar chimney power plant
Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2000.
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867613842628935680 |
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| access_status_str | Open Access |
| author | Hedderwick, Richard Anthony |
| author2 | Kroger, D. G. |
| author_browse | Hedderwick, Richard Anthony Kroger, D. G. |
| author_facet | Kroger, D. G. Hedderwick, Richard Anthony |
| author_sort | Hedderwick, Richard Anthony |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2000. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/1983 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:42:33.557Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2008 |
| publishDateRange | 2008 |
| publishDateSort | 2008 |
| publisher | Stellenbosch : University of Stellenbosch |
| publisherStr | Stellenbosch : University of Stellenbosch |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/1983 Performance evaluation of a solar chimney power plant Hedderwick, Richard Anthony Kroger, D. G. University of Stellenbosch. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Dissertations -- Mechanical engineering Theses -- Mechanical engineering Solar power plants Solar collectors Mechanical and Mechatronic Engineering Thesis (MScEng (Mechanical and Mechatronic Engineering))--University of Stellenbosch, 2000. A solar chimney power plant consists of a central chimney that is surrounded by a transparent canopy located a few meters above ground level. The ground beneath this canopy or collector as it is known is heated by the solar radiation that is effectively trapped by the collector. This in turn heats the air in the collector, which flows radially inwards towards the chimney. This movement is driven by the difference between the hydrostatic pressure of the air inside- and outside the solar chimney system. The energy is extracted from the air by a turbine driven generator situated at the base of the chimney. The performance of such a solar chimney power plant is evaluated in this study making use of a detailed mathematical model. In this model the relevant discretised energy and draught equations are deduced and solved to determine the performance of a specific plant referred to as the "reference plant". This plant is to be located at a site near Sishen in the Northern Cape in South Africa where meteorological data is available. The performance characteristics of this plant are presented using values from the 21 st of December as an example. These characteristics include the instantaneous and integrated power output, as well as the absorption of the solar radiation of each of the parts of the collector. The air temperatures throughout the plant and the convective heat transfer coefficients in the collector in the region of developing and fully developed flow are presented. The pressure of the air throughout the system is presented as well as the pressure drop over the turbine. Temperature distributions in the ground below the collector are also presented and discussed. 2008-06-27T08:24:01Z 2010-06-01T08:38:04Z 2008-06-27T08:24:01Z 2010-06-01T08:38:04Z 2000-12 Thesis http://hdl.handle.net/10019.1/1983 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Dissertations -- Mechanical engineering Theses -- Mechanical engineering Solar power plants Solar collectors Mechanical and Mechatronic Engineering Hedderwick, Richard Anthony Performance evaluation of a solar chimney power plant |
| title | Performance evaluation of a solar chimney power plant |
| title_full | Performance evaluation of a solar chimney power plant |
| title_fullStr | Performance evaluation of a solar chimney power plant |
| title_full_unstemmed | Performance evaluation of a solar chimney power plant |
| title_short | Performance evaluation of a solar chimney power plant |
| title_sort | performance evaluation of a solar chimney power plant |
| topic | Dissertations -- Mechanical engineering Theses -- Mechanical engineering Solar power plants Solar collectors Mechanical and Mechatronic Engineering |
| url | http://hdl.handle.net/10019.1/1983 |
| work_keys_str_mv | AT hedderwickrichardanthony performanceevaluationofasolarchimneypowerplant |