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Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator
Thesis (MScEng (Mechanical and Mechatronic Engineering))--Stellenbosch University, 2008.
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| Format: | Thesis |
| Language: | English |
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Stellenbosch : Stellenbosch University
2010
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| _version_ | 1867613773241516032 |
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| access_status_str | Open Access |
| author | Heyns, Johan Adam |
| author2 | Kroger, D. G. |
| author_browse | Heyns, Johan Adam Kroger, D. G. |
| author_facet | Kroger, D. G. Heyns, Johan Adam |
| author_sort | Heyns, Johan Adam |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MScEng (Mechanical and Mechatronic Engineering))--Stellenbosch University, 2008. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/350 |
| institution | Stellenbosch University (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:41:28.315Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2010 |
| publishDateRange | 2010 |
| publishDateSort | 2010 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/350 Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator Heyns, Johan Adam Kroger, D. G. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Dry-cooling Dry/wet cooling systems Adiabatic cooling Hybrid cooling system Dissertations -- Mechanical engineering Theses -- Mechanical engineering Condensers (Steam) Hydronics Thesis (MScEng (Mechanical and Mechatronic Engineering))--Stellenbosch University, 2008. This study evaluates the performance characteristics of a power plant incorporating a steam turbine and a direct air-cooled dry/wet condenser operating at different ambient temperatures. The proposed cooling system uses existing A-frame air-cooled condenser (ACC) technology and through the introduction of a hybrid (dry/wet) dephiegmator achieves measurable enhancement in cooling performance when temperatures are high. In order to determine the thermal-flow performance characteristics of the wet section of the dephlegmator, tests are conducted on an evaporative cooler. From the experimental results, correlations for the water film heat transfer coefficient, air-water mass transfer coefficient and the air-side pressure drop over a deluged tube bundle are developed. During periods of high ambient temperatures the hybrid (dry/wet) condenser operating in a wet mode can achieve the same increased turbine performance as an oversized air-cooled condenser or an air-cooled condenser rith adiabatic cooling (spray cooling) of the inlet air at a considerably lower cost. For the same turbine power output the water consumed by an air-cooled condenser incorporating a hybrid (dry/wet) dephlegmator is at least 20% less than an air- cooled condenser with adiabatic cooling of the inlet air. Sponsored by the Centre for Renewable and Sustainable Energy Studies, Stellenbosch University Masters 2010-02-06T11:32:23Z 2010-02-06T11:32:23Z 2008-12 Thesis http://hdl.handle.net/10019.1/350 en Stellenbosch University application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Dry-cooling Dry/wet cooling systems Adiabatic cooling Hybrid cooling system Dissertations -- Mechanical engineering Theses -- Mechanical engineering Condensers (Steam) Hydronics Heyns, Johan Adam Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title | Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title_full | Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title_fullStr | Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title_full_unstemmed | Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title_short | Performance characteristics of an air-cooled steam condenser incorporating a hybrid (dry/wet) dephlegmator |
| title_sort | performance characteristics of an air cooled steam condenser incorporating a hybrid dry wet dephlegmator |
| topic | Dry-cooling Dry/wet cooling systems Adiabatic cooling Hybrid cooling system Dissertations -- Mechanical engineering Theses -- Mechanical engineering Condensers (Steam) Hydronics |
| url | http://hdl.handle.net/10019.1/350 |
| work_keys_str_mv | AT heynsjohanadam performancecharacteristicsofanaircooledsteamcondenserincorporatingahybriddrywetdephlegmator |