• 作者： Jang, Yu-Jen; Chien, I-Lung
• 中文摘要： 本研究源於MPD-I(Meta phenylene diamine-isophthaloyl chloride)紡絲聚合製程控制策略評估，以提供在化工所之小型聚合反應器建立溫度控制系統之參考。反應器槽體溫度控制是以串級控制的方式來達成，夾套溫度為內環路之控制變數。批次過程中反應槽溫度包括冷卻及加熱之步驟，故必須同時使用冷媒及熱媒。冷媒或熱媒之開啟或關閉是以分割區間的方式來進行。本研究利用電腦模擬將詳細探討三種不同控制策略的優劣點。
• 英文摘要： This work presents a case study involving recommendation of the Fiber Division of Union Chemical Laboratories on how to implement a control strategy of an MPD-I (Meta Phenylene Diamine-Isophthaloyl Chloride) batch reactor temperature control system. In this study, a cascade temperature control system is used in which the reactor jacket temperature is used as an intermediate controlled variable. For the optimal reactor temperature trajectory, there will be a heat up period in the middle of the batch to prevent gel formation inside the reactor. In addition, the fact that the reaction is exothermic, particularly during the initial stage of the reaction, accounts for why a coolant is also needed to maintain the reactor temperature. The control system is arranged in a split range fashion since the heat medium and coolant are both used to regulate the reactor temperature. Several possible control strategies are examined for this batch reactor temperature control system, among which a recommendation is made as to which one has the best closed-loop response and also maintains smooth control valve actions.
• 中文關鍵字： 批次控制; 分離區間控制; 溫度控制; 串級控制; 冷媒; 熱媒
• 英文關鍵字： Batch Control; Split Range Control; Temperature Control; Cascade Control; Refrigerant; Heating Media