摘要：Fouling is a crucial problem in refinery HEN (heat exchanger network) that reduces heat transfer and affects regular production. The conventional way to mitigate fouling is cleaning heat exchanger regularly or improving operation conditions, but simultaneous consideration of the two methods is rare. This paper presents a combined approach for mitigating fouling in HEN by optimizing operation condition and cleaning schedule simultaneously. For optimization of operation condition, flow velocity is selected as a key variable since it can correlate fouling, heat transfer and pressure drop. An overall optimization of network performance can be achieved through redistribution of velocity. In a refinery HEN, fouling cannot be completely prevented through optimization of operation conditions, so management of cleaning actions is optimized to deal with the remained fouling. SA (Simulated annealing) algorithm is used in this work to obtain a comprehensive strategy for mitigating fouling. The application of the proposed method is demonstrated using a case study. The results show higher energy saving and economic efficiency compared with existing methods. (C) 2016 Elsevier Ltd. All rights reserved.

关键字：Fouling Flow velocity Cleaning schedule Energy saving Heat exchanger network

ISSN号：0360-5442

卷、期、页：卷: 109 页: 1118-1129

发表日期：2016-08-15

期刊分区（SCI为中科院分区）：一区

收录情况：SCI（科学引文索引印刷版）,ESI（基本科学指标数据库）,EI（工程索引）,SCIE（科学引文索引网络版）

发表期刊名称：ENERGY

参与作者：冯霄

通讯作者：田佳阳

第一作者：王彧斐

论文类型：期刊论文

论文概要：田佳阳,王彧斐,冯霄，Simultaneous optimization of flow velocity and cleaning schedule for mitigating fouling in refinery heat exchanger networks，ENERGY，2016，卷: 109 页: 1118-1129

论文题目：Simultaneous optimization of flow velocity and cleaning schedule for mitigating fouling in refinery heat exchanger networks