In this article, we extend a previously developed globally optimal enumeration methodology for the synthesis of heat exchanger networks (HENs) to include the basic design of heat exchangers (HEXs). The method addresses together all trade‐offs between network structure, energy usage, and the basic design of the HEXs. Without loss of generality, we focus on shell‐and‐tube HEXs. Unlike previous approaches, such as Pinch Analysis, Metaheuristic methods, or Mathematical Programming, our procedure guarantees global optimality. The procedure is not iterative and does not present any convergence challenges. We enumerate HEN structures using a mixed‐integer linear programming method and we use Set Trimming followed by sorting for the HEX design. In addition, because some network structures are incompatible with single shell exchangers, we use multiple shell exchangers in series. The comparison of the results of the proposed approach with solutions obtained using two alternative methods extracted from the literature indicates that considerable cost reductions may be obtained.

中文翻译：

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全局最优同时换热器网络综合和基本换热器设计

在本文中，我们扩展了先前开发的用于综合换热器网络（HEN）的全局最优枚举方法，以包括换热器（HEX）的基本设计。该方法同时解决了网络结构、能源使用和 HEX 基本设计之间的所有权衡。不失一般性，我们关注管壳式六角形。与之前的方法（例如夹点分析、元启发式方法或数学规划）不同，我们的过程保证了全局最优性。该过程不是迭代的，并且不会带来任何收敛挑战。我们使用混合整数线性规划方法枚举 HEN 结构，并使用 Set Trimming 和 HEX 设计的排序。另外，由于有些网络结构与单壳交换器不兼容，我们采用多壳交换器串联。将所提出的方法的结果与使用从文献中提取的两种替代方法获得的解决方案进行比较表明，可以获得相当大的成本降低。