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Heliostat field layout optimization for a central receiver
Thesis (MEng)--Stellenbosch University, 2014.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2015
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| _version_ | 1867614137464389632 |
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| access_status_str | Open Access |
| author | Lutchman, Shanley Lawrence |
| author2 | Gauche, Paul |
| author_browse | Gauche, Paul Lutchman, Shanley Lawrence |
| author_facet | Gauche, Paul Lutchman, Shanley Lawrence |
| author_sort | Lutchman, Shanley Lawrence |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2014. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/96043 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:47:15.645Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2015 |
| publishDateRange | 2015 |
| publishDateSort | 2015 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/96043 Heliostat field layout optimization for a central receiver Lutchman, Shanley Lawrence Gauche, Paul Groenwold, A. A. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Heliostat field layout Central receiver system Optimization (Mathematics) Free variable method Theses -- Mechanical engineering Dissertations -- Mechanical engineering UCTD Thesis (MEng)--Stellenbosch University, 2014. ENGLISH ABSTRACT: There are two methods generally used for heliostat field layout optimization: the field growth method and the pattern method. A third, less commonly used method also exists: the free variable method. Each of these three methods offers its own set of advantages and disadvantages. The purpose of this study is to explore the subject of heliostat field layout optimization and to examine the free variable method. In order to achieve this objective, optimization was conducted using the free variable method. To perform optimization, a technical model of the heliostat field was constructed using approximating functions from literature and geometric analysis. Results of this study indicated that the free variable method is possible using a gradient-based optimization algorithm. The free variable method was applied to redesign the field of a commercial plant, PS10, located in Spain. The original plant was improved by 1.2% in annual intercepted energy. The study has demonstrated some of the characteristics, advantages and pitfalls of the free variable method and has proved useful in contributing to the understanding of heliostat field layout optimization. The free variable method requires more research and development before it may be used commercially. AFRIKAANSE OPSOMMING: Daar word oor die algemeen twee metodes gebruik om 'n heliostaatveld se uitleg te optimeer: die terreinvermeerderingsmetode (field growth) en die patroonmetode (pattern). 'n Derde, minder algemeen gebruikte metode bestaan ook: die vrye veranderlike metode (free variable). Elkeen van hierdie drie metodes bied sy eie voordele en nadele. Die doel van hierdie studie is om die onderwerp van heliostaat veld uitleg optimalisering te verken en die vrye veranderlike metode te ondersoek. Ten einde te hierdie oogmerk te bereik, is die optimalisering uitgevoer met gebruik van die vrye veranderlike metode. Om optimalisering uit te voer, is 'n tegniese model van die heliostaat veld gebou met behulp van benader funksies van letterkunde en geometriese analise. Resultate van hierdie studie het aangedui dat die vrye veranderlike metode moontlik is deur gebruik te maak van 'n gradientbebaseerde optimeeringslagoritme. Die vrye veranderlike metode is ook aangewend om die terrien van 'n kommersiele aanleg, PS10 in Spanje, te herontwerp. Die oorspronklike aanleg is in jaarlikse onderskep energie verbeter met 1.2%. Die studie het sommige van die eienskappe, voordele en slaggate van die vrye veranderlike metode getoon en het nuttige bewys om by te dra tot die begrip van heliostaat veld uitleg optimalisering. Die vrye veranderlike metode vereis meer navorsing en ontwikkeling voordat dit kommersieel gebruik kan word. 2015-01-13T11:49:50Z 2016-03-31T03:00:12Z 2014-12 Thesis http://hdl.handle.net/10019.1/96043 en_ZA Stellenbosch University xiii, 131 pages : illustrations application/pdf application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Heliostat field layout Central receiver system Optimization (Mathematics) Free variable method Theses -- Mechanical engineering Dissertations -- Mechanical engineering UCTD Lutchman, Shanley Lawrence Heliostat field layout optimization for a central receiver |
| title | Heliostat field layout optimization for a central receiver |
| title_full | Heliostat field layout optimization for a central receiver |
| title_fullStr | Heliostat field layout optimization for a central receiver |
| title_full_unstemmed | Heliostat field layout optimization for a central receiver |
| title_short | Heliostat field layout optimization for a central receiver |
| title_sort | heliostat field layout optimization for a central receiver |
| topic | Heliostat field layout Central receiver system Optimization (Mathematics) Free variable method Theses -- Mechanical engineering Dissertations -- Mechanical engineering UCTD |
| url | http://hdl.handle.net/10019.1/96043 |
| work_keys_str_mv | AT lutchmanshanleylawrence heliostatfieldlayoutoptimizationforacentralreceiver |