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A generic approach to the automated startup and shutdown of processing units using sequential function charts
Dissertation (MEng (Control Engineering))--University of Pretoria, 2006.
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| Format: | Thesis |
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University of Pretoria
2013
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| _version_ | 1867613453264355328 |
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| access_status_str | Open Access |
| author2 | De Vaal, Philip L. |
| author_browse | De Vaal, Philip L. |
| author_facet | De Vaal, Philip L. |
| collection | Thesis |
| dc_rights_str_mv | ©University of Pretoria 2002/ |
| description | Dissertation (MEng (Control Engineering))--University of Pretoria, 2006. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/26111 |
| institution | University of Pretoria (South Africa) |
| last_indexed | 2026-06-10T12:36:23.211Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2013 |
| publishDateRange | 2013 |
| publishDateSort | 2013 |
| 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:2263/26111 A generic approach to the automated startup and shutdown of processing units using sequential function charts De Vaal, Philip L. Du Plessis, Lourens Grafcet Sequence controllers programmable Cellular automation Sequential function charts Scheduling Processing phases Iterative learning Lurgi fixed–bed gasifier Automation Fault accommodation Fault detection Fault diagnosis Startup and shutdown UCTD Dissertation (MEng (Control Engineering))--University of Pretoria, 2006. Automated start–up and shutdown procedures increase the profitability and safety of a process, but are difficult to implement due to the complex nature of the concepts that must be incorporated. Generic components used specifically for the implementation of automated startup and shutdown procedures were defined to streamline the implementation process. The generic components developed are based on Sequential Function Charts and were applied to the startup of a fixed–bed gasification unit, for which a dynamic simulation model was developed. The application showed that the automated startup can be defined by a few generic components and that the flexibility of the startup procedure is increased through the incorporation of a fault accommodation module. The use of a visual–based definition of sequential processes increases the understanding of the complex scheduling procedures as well as the efficiency of the development of these automated procedures. In addition, iterative learning was incorporated into the generic definition to optimise controller performance during the non–linear phases of operation. Chemical Engineering MEng Unrestricted 2013-09-07T02:33:55Z 2005-07-20 2013-09-07T02:33:55Z 2003-04-01 2006-07-20 2005-07-08 Dissertation Du Plessis, L 2006, A generic approach to the automated startup and shutdown of processing units using sequential function charts, MEng Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/26111> 2002/ag http://hdl.handle.net/2263/26111 http://upetd.up.ac.za/thesis/available/etd-07082005-122657/ ©University of Pretoria 2002/ application/pdf University of Pretoria |
| spellingShingle | Grafcet Sequence controllers programmable Cellular automation Sequential function charts Scheduling Processing phases Iterative learning Lurgi fixed–bed gasifier Automation Fault accommodation Fault detection Fault diagnosis Startup and shutdown UCTD A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title | A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title_full | A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title_fullStr | A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title_full_unstemmed | A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title_short | A generic approach to the automated startup and shutdown of processing units using sequential function charts |
| title_sort | generic approach to the automated startup and shutdown of processing units using sequential function charts |
| topic | Grafcet Sequence controllers programmable Cellular automation Sequential function charts Scheduling Processing phases Iterative learning Lurgi fixed–bed gasifier Automation Fault accommodation Fault detection Fault diagnosis Startup and shutdown UCTD |
| url | http://hdl.handle.net/2263/26111 http://upetd.up.ac.za/thesis/available/etd-07082005-122657/ |