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Dynamic evaluation of the solar chimney
Thesis (MEng (Civil Engineering))--University of Stellenbosch, 2005.
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| Main Author: | |
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| Other Authors: | |
| Format: | Thesis |
| Language: | English |
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Stellenbosch : University of Stellenbosch
2008
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| _version_ | 1867613921886601216 |
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| access_status_str | Open Access |
| author | Rousseau, Jean-Pierre |
| author2 | Van Zijl, G. P. A. G. |
| author_browse | Rousseau, Jean-Pierre Van Zijl, G. P. A. G. |
| author_facet | Van Zijl, G. P. A. G. Rousseau, Jean-Pierre |
| author_sort | Rousseau, Jean-Pierre |
| collection | Thesis |
| dc_rights_str_mv | University of Stellenbosch |
| description | Thesis (MEng (Civil Engineering))--University of Stellenbosch, 2005. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/1674 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:43:50.076Z |
| 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:10019.1/1674 Dynamic evaluation of the solar chimney Rousseau, Jean-Pierre Van Zijl, G. P. A. G. University of Stellenbosch. Faculty of Engineering. Dept. of Civil Engineering. Theses -- Civil engineering Dissertations -- Civil engineering Solar power plants Civil engineering Thesis (MEng (Civil Engineering))--University of Stellenbosch, 2005. Previous studies on the solar chimney have shown that its structural integrity might be compromised by the occurrence of resonance. A structure may displace excessively when a load of the same frequency as a structural eigen-frequency is applied. The wind gust spectrum peaks near the solar chimney’s fundamental resonance frequency. This phenomenon poses a reliability threat, not only to the solar chimney, but also to all high-rise, slender structures. Structural dynamics describe the response of a structure to a varying load. The dynamic equation incorporates four terms that bind the factors responsible for resonance: kinetic energy, dissipated energy (damping), stiffness energy and input energy (loading). After a brief literature study on classical chimney design procedures, the study scrutinises each of these terms individually in the context of the solar chimney as designed to date. A dynamic analysis is undertaken with all the above-mentioned parameters as defined and estimated by the study. The results from the analysis show amplifications of approximately three times the static displacements. In load cases where the wind direction inverts along the height, higher eigen-modes are excited. However, the most severe dynamic amplification occurs at the fundamental eigen-mode. In the context of solar chimney research, this study brings valuable new insights regarding the dynamic behaviour of the chimney structure to the fore. 2008-07-28T11:50:02Z 2010-06-01T08:30:22Z 2008-07-28T11:50:02Z 2010-06-01T08:30:22Z 2005-12 Thesis http://hdl.handle.net/10019.1/1674 en University of Stellenbosch application/pdf Stellenbosch : University of Stellenbosch |
| spellingShingle | Theses -- Civil engineering Dissertations -- Civil engineering Solar power plants Civil engineering Rousseau, Jean-Pierre Dynamic evaluation of the solar chimney |
| title | Dynamic evaluation of the solar chimney |
| title_full | Dynamic evaluation of the solar chimney |
| title_fullStr | Dynamic evaluation of the solar chimney |
| title_full_unstemmed | Dynamic evaluation of the solar chimney |
| title_short | Dynamic evaluation of the solar chimney |
| title_sort | dynamic evaluation of the solar chimney |
| topic | Theses -- Civil engineering Dissertations -- Civil engineering Solar power plants Civil engineering |
| url | http://hdl.handle.net/10019.1/1674 |
| work_keys_str_mv | AT rousseaujeanpierre dynamicevaluationofthesolarchimney |