On a new globally optimal method for the design optimization of air coolers coupled with real fans

IF 4.1 2区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Science Pub Date : 2024-11-12 DOI:10.1016/j.ces.2024.120926

Marco Thiago da C. Santos , Argimiro Resende Secchi , Miguel J. Bagajewicz , André L.H. Costa

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引用次数: 0

Abstract

A new approach for the globally optimal design of air coolers is presented. First, by coupling the air cooler geometric options with commercially available fans, the traditional mismatch emerging from designing the air cooler first and selecting a commercial fan later is removed. Second, the method departs from the traditional LMTD and ε-NTU methods, adopting a model composed of a differential–algebraic system of equations (DAE system) for the air cooler simulation, which is discretized to consider properties variable with temperature. The resultant optimization problem is solved using Set Trimming and Smart Enumeration, which can identify the global optimum through the simulation of only a small fraction of the search space. The comparison of the simulation results with different commercial software provided similar outputs. A comparison with design results obtained using LMTD solutions indicates that the LMTD models may overdesign/underdesign the unit.

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空气冷却器与真实风扇耦合设计优化的全局最优新方法

本文提出了一种空气冷却器全局优化设计的新方法。首先，通过将空气冷却器的几何选项与市售风扇相结合，消除了先设计空气冷却器、后选择商用风扇的传统不匹配现象。其次，该方法不同于传统的 LMTD 和 ε-NTU 方法，它采用了一个由微分代数方程系统（DAE 系统）组成的模型来模拟空气冷却器，并将其离散化，以考虑随温度变化的特性。利用集合修剪和智能枚举解决由此产生的优化问题，只需对搜索空间的一小部分进行仿真，即可确定全局最优值。将模拟结果与不同的商业软件进行比较，得到的结果相似。与使用 LMTD 解决方案获得的设计结果进行比较后发现，LMTD 模型可能会过度设计或设计不足。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Science 工程技术-工程：化工

CiteScore

7.50

自引率

8.50%

发文量

1025

审稿时长

50 days

期刊介绍： Chemical engineering enables the transformation of natural resources and energy into useful products for society. It draws on and applies natural sciences, mathematics and economics, and has developed fundamental engineering science that underpins the discipline. Chemical Engineering Science (CES) has been publishing papers on the fundamentals of chemical engineering since 1951. CES is the platform where the most significant advances in the discipline have ever since been published. Chemical Engineering Science has accompanied and sustained chemical engineering through its development into the vibrant and broad scientific discipline it is today.