The goal of this work is to develop a conceptual framework and computational tools for
the optimization of utility systems in the process industries. The emphasis is devoted to
the development of systematic design techniques aimed at identifying modifications to
the process and the associated utility-systems to jointly optimize the process and the
utility system. The following contributions describe the specific results of this work:
• Development of shortcut methods for modeling and optimizing steam systems
and basic thermodynamic cycles with the objective of using these methods in the
optimization of combined heat and power. To enable efficient mathematical
programming formulations, simple yet accurate correlations have been developed
for the thermodynamic properties of steam in the utility system.
• Optimization of multi-level steam system for combined process requirements and
power cogeneration. A general procedure is developed to determine rigorous
cogeneration targets and the optimal configuration of the system with the
associated design and operating variables. • Graph theory methods are also used to optimize the pipeline layout in the plant
for the distributing the utilities.
• Finally, because of the nonconvex nature of much of the developed optimization
formulations, a global optimization method has also been suggested by using
interval analysis and simulated annealing.
The techniques proposed in this work are compared to previous works and their
applicabilities are presented in case studies. These techniques outperform previously
suggested ones in terms of the accuracy, computational efficiency and/or optimality.
| Identifer | oai:union.ndltd.org:tamu.edu/oai:repository.tamu.edu:1969.1/ETD-TAMU-2896 |
| Date | 15 May 2009 |
| Creators | Al-Azri, Nasser Ahmed |
| Contributors | El-Halwagi, Mahmoud |
| Source Sets | Texas A and M University |
| Language | en_US |
| Detected Language | English |
| Type | Book, Thesis, Electronic Dissertation, text |
| Format | electronic, application/pdf, born digital |
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