碩士 / 國立臺北科技大學 / 化學工程研究所 / 104 / Reverse osmosis (RO) is one of the major technologies for desalinating seawater. Pressure retarded osmosis (PRO) is a renewable source for power production. Forward osmosis (FO) is emerging technology which have the potential for fresh water at low energy consumption. FO and PRO coupling with an RO membrane process is proposed to reduce the cost of seawater desalination and the potential for power generation. In this study, we would like to carry out an optimal integrated system of FO, RO and PRO for seawater desalination and power generation. Four conceptual desigh configurations, RO-PRO, PRO-RO, FO-RO-PRO and PRO-FO-RO were proposed and compared first.By minimizing the total annual cost subject to the constraints of supply and demand conditions. The results show that the optimal configuration in each scenarios are different due to changing power and permeate demand. Therefore, a general superstructure that contains more feasible operation and distribution network is developed. The optimization problem is formulated as a mixed integer nonlinear programming (MINLP), and find optimal osmosis processes arrangement with auxiliary equipment, and their optimal operation conditions for seawater desalination and power generation.Several case studies were analyzed to show the applicability of the MINLP model. The problem can be optimized to extract the best process layout subject to the model constraints.Therefore, making the advantages best of these three osmotic processes and optimizing the hybrid desalination systems is the final proposal in this study.
| Identifer | oai:union.ndltd.org:TW/104TIT05063105 |
| Creators | Hao Chen, 陳皜 |
| Contributors | 鄭智成 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 0 |
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