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Design and costing of a packed bed thermal energy storage system
Khan, M. 2025. Design and costing of a packed bed thermal energy storage system. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/8a3d14ed-a0ca-4752-834e-ba899287e0c2
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| Format: | Thesis |
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Stellenbosch : Stellenbosch University
2025
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| _version_ | 1867613950707761152 |
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| access_status_str | Open Access |
| author | Khan, Mu-een |
| author2 | McGregor, Craig |
| author_browse | Khan, Mu-een McGregor, Craig |
| author_facet | McGregor, Craig Khan, Mu-een |
| author_sort | Khan, Mu-een |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Khan, M. 2025. Design and costing of a packed bed thermal
energy storage system. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/8a3d14ed-a0ca-4752-834e-ba899287e0c2 |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/132576 |
| institution | Stellenbosch University (South Africa) |
| last_indexed | 2026-06-10T12:44:17.380Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/132576 Design and costing of a packed bed thermal energy storage system Khan, Mu-een McGregor, Craig Clark, S. R. Stellenbosch University. Faculty of Engineering. Dept. of Mechanical and Mechatronic Engineering. Heat storage Solar power plants Finite element method Heat engineering Heat engineering Khan, M. 2025. Design and costing of a packed bed thermal energy storage system. Unpublished masters thesis. Stellenbosch: Stellenbosch University [online]. Available: https://scholar.sun.ac.za/items/8a3d14ed-a0ca-4752-834e-ba899287e0c2 Thesis (MEng)--Stellenbosch University, 2025. ENGLISH ABSTRACT: Concentrated solar power (CSP) plants can benefit substantially from the inclusion of thermal energy storage (TES) systems. Adding thermal storage lowers the cost of electricity by improving the capacity factor by allowing it to utilise more of the available solar irradiance. The cost of storage, however, is relatively high and design alternatives need to be explored which can reduce those costs. This research investigates the cost-saving potential of a single-tank thermocline packed bed TES system against the industry standard two-tank molten salt TES system. This was investigated through the evaluation of different system designs. The designs were evaluated on the basis of thermal performance and cost using a collection of models developed as part of the study. The results indicated that thermocline systems are able to achieve cost savings of 11.5 to 24.5% when compared to a two-tank molten salt TES system with the same output parameters. The results provide valuable insight into the performance of the systems, however, physical experiments are needed to further understand aspects where the model limitations are reached. AFRIKAANSE OPSOMMING: Gekonsentreerde sonkrag aanlegte kan aansienlik baat vind by die insluiting van ’n termiese energiebergings stelsel (TES) . Die toevoeging van termiese berging verlaag die koste van elektrisiteit deur die kapasiteitsfaktor te verbeter en meer van die beskikbare sonbestraling te benut. Die koste van berging is egter relatief hoog, en ontwerpalternatiewe moet ondersoek word om daardie kostes te verminder. Hierdie navorsing ondersoek die kostebesparingspotensiaal van ’n enkeltenk termoklien gepakte bed TES teenoor die nywerheidstandaard tweetenkkonfigurasie vir gesmelte sout TES. Dit is ondersoek deur verskillende TES ontwerpe te evalueer. Die ontwerpe is geëvalueer op grond van termiese prestasie en koste deur ’n versameling modelle wat as deel van die studie ontwikkel is. Die resultate het aangedui dat termoklienstelsels kostebesparings van 11.5 tot 24.5% kan behaal in vergelyking met ’n tweetenkkonfigurasie stelsel met dieselfde uitvoerparameters. Die resultate bied waardevolle insig in die werkverrigting van die stelsels, maar fisiese eksperimente is nodig om aspekte verder te verstaan waar die modelbeperkings bereik word. Masters 2025-06-11T09:36:11Z 2025-06-11T09:36:11Z 2025-03 Thesis https://scholar.sun.ac.za/handle/10019.1/132576 Stellenbosch University 111 pages application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Heat storage Solar power plants Finite element method Heat engineering Heat engineering Khan, Mu-een Design and costing of a packed bed thermal energy storage system |
| title | Design and costing of a packed bed thermal energy storage system |
| title_full | Design and costing of a packed bed thermal energy storage system |
| title_fullStr | Design and costing of a packed bed thermal energy storage system |
| title_full_unstemmed | Design and costing of a packed bed thermal energy storage system |
| title_short | Design and costing of a packed bed thermal energy storage system |
| title_sort | design and costing of a packed bed thermal energy storage system |
| topic | Heat storage Solar power plants Finite element method Heat engineering Heat engineering |
| url | https://scholar.sun.ac.za/handle/10019.1/132576 |
| work_keys_str_mv | AT khanmueen designandcostingofapackedbedthermalenergystoragesystem |