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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65466
標題: | 應用數學規劃法設計冰水網路 A Mathematical Approach for the Design of Refrigerated Water Network |
作者: | Tong-Lin Wen 溫桐霖 |
指導教授: | 陳誠亮(Cheng-Liang Chen) |
關鍵字: | 冰水網路,超結構,冷卻水,最適化, Optimization,Superstructure,RefrigeratedWater Network Systems,Chiller, |
出版年 : | 2012 |
學位: | 碩士 |
摘要: | 本文針對冰水網路系統,提出以數學規劃法的方式進行整體最適化的設計。
首先我們提出一個可以描述所有可能狀況的冰水網路超結構,針對超結構中的每一個單元逐步建立規範方程式,即可將冰水網路系統的最適化問題變成一個典型的混合整數非線性規劃(MINLP)數學問題,再以各種目標函數情況下,進行求解以獲得冰水網路系統的最適化設計。 藉由目標函數(1)最小新鮮冰水總消耗量,對一個例子作不同設計方法的最適化並比較其結果;接著,在滿足目標函數(1)下,我們為了得到唯一解,再次提出目標函數(2)為每一冰水使用單元最小通過量,或目標函數(3)為每一冰水儲存槽最小通過量,在滿足目標函數(2)或(3)的情形下,所得到的最適化冰水網路系統之唯一解。 最後我們利用虛擬工廠來檢視本研究所提出之數學模型及超結構上可設計出適當的冰水網路設計,並且將這模型以實際工廠之數據進行模擬,以探討實際工廠之情形。 This work aims to develop a mathematical model for the synthesis of refrigerated water network systems and chiller operating strategy simultaneously. First, we proposed a model which includes all possible configurations of refrigerated water network system. By setting relevant constraints of each part in the superstructure, the design problem of refrigerated water network system is formulated as a mixed-integer nonlinear program that can be solved for optimal configuration of refrigerated water network. By using objective function 1 which is minimizing the consumption of fresh refrigerated water, we get the optimal configuration of refrigerated water network in different design types. After satisfying objective function 1, to get the unique solution, we proposed objective function 2 or 3 which is minimizing the total flow rate through each using unit or through each RW main. Satisfying the objective function 2 or 3, we get the optimal configuration which is the unique solution. Finally, we set a fictitious plant to survey the model and the superstructure. Then, we use the real plant data simulate the results and discuss them. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/65466 |
全文授權: | 有償授權 |
顯示於系所單位: | 化學工程學系 |
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