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Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models
Dissertation (MSc (Mechanical Engineering))--University of Pretoria, 2020.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2021
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| _version_ | 1867613680534814720 |
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| access_status_str | Open Access |
| author2 | Le Roux, Willem G. |
| author_browse | Le Roux, Willem G. |
| author_facet | Le Roux, Willem G. |
| collection | Thesis |
| dc_rights_str_mv | © 2019 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Mechanical Engineering))--University of Pretoria, 2020. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/78060 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:59.869Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/78060 Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models Le Roux, Willem G. kcroosnedaal@gmail.com Meyer, Josua P. Roosendaal, Casey UCTD Vacuum membrane Flux mapping Multifaceted Solar dish SolTrace Solar Energy Engineering, built environment and information technology theses SDG-07 SDG-07: Affordable and clean energy Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-13 SDG-13: Climate action Dissertation (MSc (Mechanical Engineering))--University of Pretoria, 2020. Concentrated solar power is a growing but expensive alternative energy resource. One of the most common issues faced when it comes to solar dish design is the complex trade-off between cost and optical quality. A novel solar dish reflector setup that makes use of low-cost, commercial television satellite dishes to support aluminised plastic membranes in a multifaceted vacuum-membrane concentrator was investigated in this work. The design aims to reduce costs while maintaining high optical accuracy with the added benefit of optical adjustability. The flux distribution of the novel solar dish reflector setup had to be determined to make recommendations on the feasibility of the design. This research presents a method to determine the expected solar flux distribution from lunar tests using a Canon EOS 700D camera. Experimental tests and different pollution treatment methods were conducted using lunar flux mapping techniques. A numerical model of the experimental setup, based on photogrammetry results of the membrane surface, was also developed in SolTrace to ascertain the sources of error and allow for further design improvements. Preliminary testing proved that JPEG image formats yielded insufficient accuracy in capturing the incident flux when compared to RAW images. Based on the flux ratio maps, the intercept factor for a large multifaceted dish setup was calculated as 88.6% for an aperture size of 0.25 m × 0.25 m, with a maximum solar flux of 1 395 kW/m2 for a 1 000 W/m2 test case. National Research Foundation (NRF) mi2025 Mechanical and Aeronautical Engineering MSc (Mechanical Engineering) Unrestricted SDG-07: Affordable and clean energy SDG-09: Industry, innovation and infrastructure SDG-13: Climate action 2021-01-20T07:32:04Z 2021-01-20T07:32:04Z 2021 2020 Dissertation * A2021 http://hdl.handle.net/2263/78060 en © 2019 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Vacuum membrane Flux mapping Multifaceted Solar dish SolTrace Solar Energy Engineering, built environment and information technology theses SDG-07 SDG-07: Affordable and clean energy Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-13 SDG-13: Climate action Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title | Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title_full | Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title_fullStr | Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title_full_unstemmed | Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title_short | Analysis of a novel low-cost solar concentrator using lunar flux mapping techniques and ray-tracing models |
| title_sort | analysis of a novel low cost solar concentrator using lunar flux mapping techniques and ray tracing models |
| topic | UCTD Vacuum membrane Flux mapping Multifaceted Solar dish SolTrace Solar Energy Engineering, built environment and information technology theses SDG-07 SDG-07: Affordable and clean energy Engineering, built environment and information technology theses SDG-09 SDG-09: Industry, innovation and infrastructure Engineering, built environment and information technology theses SDG-13 SDG-13: Climate action |
| url | http://hdl.handle.net/2263/78060 |