Optimization techniques for heat exchanger networks using the minimum rule (MR)

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• 作者：A.I.A. Salama ; ^{ahmed.salama@nrcan-rncan.gc.ca}
• 关键词：Minimum temperature approach (螖Tmin) ; Process integration ; Heat exchange network (HEN) ; HEN analysis ; HEN synthesis ; HEN superstructure
• 刊名：Applied Thermal Engineering
• 出版年：2012
• 期刊代码：8_13594311
• 类别：ce
• 出版时间：December, 2012
• 卷：45-46
• 期：Complete
• 页码：108-117
• 文件大小：1145 K

摘要

Two aspects of the existing minimum rule (MR) are used in the optimization of heat exchange networks (HENs). One aspect is to use the minimum of the algebraic quantities 惟¹ and 惟² or the minimum of cold and hot stream heat capacity flowrates of each heat exchanger (HEX) in HEN optimization. The other aspect is the dependency (or relationship) between the input and output temperature differentials of each HEX in HEN. As a consequence of the first aspect, the number of constraints of the HEN optimization problems of HEN synthesis is reduced. The second aspect is used to reduce the calculations of the HEN HEXs鈥?areas. The results obtained are demonstrated using no stream splitting and stream splitting synthesis formulations. In stream splitting formulation, HENs are composed of superstructures.