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Development of a low cost linear fresnel solar concentrator
Thesis (MScEng)--Stellenbosch University, 2013.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2013
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| _version_ | 1867613747344834560 |
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| access_status_str | Open Access |
| author | Walker, Gregg Stuart |
| author2 | Von Backstrom, T. W. |
| author_browse | Von Backstrom, T. W. Walker, Gregg Stuart |
| author_facet | Von Backstrom, T. W. Walker, Gregg Stuart |
| author_sort | Walker, Gregg Stuart |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MScEng)--Stellenbosch University, 2013. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/85762 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:41:01.634Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/85762 Development of a low cost linear fresnel solar concentrator Walker, Gregg Stuart Von Backstrom, T. W. Gauche, Paul Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Fresnel lenses Ray-tracing algorithms Solar energy Solar concentrator Dissertations -- Mechanical and mechatronic engineering Theses -- Mechanical and mechatronic engineering Thesis (MScEng)--Stellenbosch University, 2013. ENGLISH ABSTRACT: This study describes the design and construction of a low-cost linear Fresnel solar concentrator. Ray-trace simulation models that analyse optical performance were developed and then used to perform sensitivity analyses of various characteristics of linear Fresnel concentrators. The design of a small-scale concentrator was optimised using the simulation models, after which the concentrator was constructed in the solar laboratory. The concentrator consists of a single-motor tracking system, flat primary mirrors and a low-cost secondary concentrator that approximates a compound parabolic concentrator. Testing revealed satisfactory performance that was comparable to the simulation models’ prediction. The construction of a low-cost solar concentrator that can replace existing thermal sources for the generation of power and process heat is thus achievable. AFRIKAANSE OPSOMMING: Die ontwerp en konstruksie van 'n laekoste- lineêre Fresnel-sonkonsentreerder word in hierdie studie beskryf. Stralingsimulasiemodelle wat optiese werksverrigting analiseer is ontwikkel en gebruik om sensitiwiteitsanalises van die verskillende eienskappe van lineêre Fresnel-konsentreerders te doen. Die modelle is verder gebruik om die ontwerp van 'n kleinskaalse konsentreerder te optimeer, waarna die konsentreerder in die sonlaboratorium gebou is. Die konsentreerder bestaan uit 'n enkelmotorvolgingstelsel, plat primêre spieëls en 'n laekoste- sekondêre konsentreerder soortgelyk aan 'n saamgestelde, paraboliese konsentreerder. Toetsing dui bevredigende werksverrigting aan, vergelykbaar met wat die simulasiemodelle voorspel het. Dit is dus moontlik om 'n laekoste-sonkonsentreerder wat bestaande termiese bronne vir kragopwekking en proseshittegenerasie kan vervang, daar te stel. 2013-10-28T18:56:15Z 2013-12-13T16:15:40Z 2013-10-28T18:56:15Z 2013-12-13T16:15:40Z 2013-12 Thesis http://hdl.handle.net/10019.1/85762 en_ZA Stellenbosch University xiii, 121 p. : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Fresnel lenses Ray-tracing algorithms Solar energy Solar concentrator Dissertations -- Mechanical and mechatronic engineering Theses -- Mechanical and mechatronic engineering Walker, Gregg Stuart Development of a low cost linear fresnel solar concentrator |
| title | Development of a low cost linear fresnel solar concentrator |
| title_full | Development of a low cost linear fresnel solar concentrator |
| title_fullStr | Development of a low cost linear fresnel solar concentrator |
| title_full_unstemmed | Development of a low cost linear fresnel solar concentrator |
| title_short | Development of a low cost linear fresnel solar concentrator |
| title_sort | development of a low cost linear fresnel solar concentrator |
| topic | Fresnel lenses Ray-tracing algorithms Solar energy Solar concentrator Dissertations -- Mechanical and mechatronic engineering Theses -- Mechanical and mechatronic engineering |
| url | http://hdl.handle.net/10019.1/85762 |
| work_keys_str_mv | AT walkergreggstuart developmentofalowcostlinearfresnelsolarconcentrator |