A Petri-Net Based Optimization Strategy for Generating the Batch Operating Procedures
| Autor: | Yi-hsiang Yang, 楊譯翔 |
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| Rok vydání: | 2008 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 96 Transferring process material from one unit to another via a pipeline network is a basic operation performed routinely in almost every batch chemical plant. Traditionally, the task of conjecturing the needed operation steps is carried out manually on an ad hoc basis. This approach is often time-consuming when applied to an industrial process and, furthermore, the resulting recipe may be error-prone. This work is based on the method of Petri-Net based integer program proposed by Lai et al.(2007) and improve the performance to a new level. Specifically, this approach includes the path modules, the equipment modules and the process modules which are described by the state equation. Other integer constraints are also incorporated to build this approach. In addition, the number of variables and constrains are less than original model, thus, the performance efficiency can be improved. There are several realistic examples are provided to demonstrate the strength and effectiveness of the proposed approach. Finally, our research modify traditional schedule model to develop time-based mathematical programs. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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