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An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery
Dissertation (MEng (Industrial Engineering))--University of Pretoria, 2026
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2026
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| _version_ | 1869484089402195968 |
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| access_status_str | Open Access |
| author2 | Tshinangi, Kapya |
| author_browse | Tshinangi, Kapya |
| author_facet | Tshinangi, Kapya |
| collection | Thesis |
| dc_rights_str_mv | © 2024 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 (MEng (Industrial Engineering))--University of Pretoria, 2026 |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/108480 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-07-01T04:09:20.993Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| 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:2263/108480 An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery Tshinangi, Kapya kirstenworrall@gmail.com Adetunji, Olufemi Worrall, Kirsten UCTD Sustainable Development Goals (SDGs) Economic Production Quantity Remanufacturing Shared Resource Complementary Demand Dissertation (MEng (Industrial Engineering))--University of Pretoria, 2026 In production industries, like stainless steel manufacturing, a shared resource can subsequently produce multiple complementary products that are consumed together. The production process results in defective outputs that can be recovered through reannealing and cutting coils into sheets on the constrained resource, while the customers’ demand for each product is impacted by the price of the complementary product. The study develops an Economic Production Quantity (EPQ) model for two mutually complementary products manufactured on a shared resource with imperfect production. Product Type A’s demand can only be satisfied through production from new feedstock, while Product Type B’s demand can be satisfied through remanufacturing non-conforming products and production from new feedstock. The model incorporates complementary price-dependent demands and remanufacturing to optimise lot sizes by minimising total cost, including setup, holding, rework and disposal. The two scenarios analysed are non-bottleneck and bottleneck scenarios, respectively. Numerical examples confirm global optimality and model feasibility. The proposed model provides an EPQ framework that can be used for industries to ensure cost efficiency and sustainability through integrated production planning. University of Pretoria Industrial and Systems Engineering MEng (Industrial Engineering) Unrestricted Faculty of Engineering, Built Environment and Information Technology SDG-09: Industry, innovation and infrastructure 2026-02-19T14:29:49Z 2026-02-19T14:29:49Z 2026-02-19 2026-02-19 Dissertation * A2026 http://hdl.handle.net/2263/108480 10.25403/UPresearchdata.31368589 en © 2024 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 Sustainable Development Goals (SDGs) Economic Production Quantity Remanufacturing Shared Resource Complementary Demand An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title | An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title_full | An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title_fullStr | An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title_full_unstemmed | An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title_short | An economic production model for multi-product manufacturing with consideration towards complementary price-dependent demand, and the possibility of product recovery |
| title_sort | economic production model for multi product manufacturing with consideration towards complementary price dependent demand and the possibility of product recovery |
| topic | UCTD Sustainable Development Goals (SDGs) Economic Production Quantity Remanufacturing Shared Resource Complementary Demand |
| url | http://hdl.handle.net/2263/108480 |