摘要：A cooling water system requires a large amount of energy to transport the cooling water. It contains two subsystems, namely, a cooler network and a pump network. Conventionally, these two subsystems are optimized separately. The intrinsic connections between the pump cost, cooler cost, and cooling water flow rate, require the cooler and pump networks to be optimized simultaneously. This paper presents an optimization model for a cooling water system in which both the subsystems are simultaneously optimized. For the cooler network, a series-parallel superstructure is employed to reduce the cooling water flow rate for decreasing the pumping cost. A main-auxiliary pumps structure is applied in the pumping system for reducing the energy consumption. The intrinsic relationship between the cooler network and pumping system is investigated. The model is formulated as a mixed-integer nonlinear programming (MINLP) problem. The objective is to determine the cooling water system by minimizing the total annual cost. A case study is employed to demonstrate the effectiveness of the proposed model. The results show that the simultaneous optimization method can lead to a 63% TAC reduction-in comparison with the two-step sequential optimization method. (c) 2017 Elsevier Ltd. All rights reserved.

关键字：Cooling water system Pump network Cooler network MINLP

ISSN号：1359-4311

卷、期、页：卷: 125 页: 377-385

发表日期：2017-10-01

期刊分区（SCI为中科院分区）：二区

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

发表期刊名称：APPLIED THERMAL ENGINEERING

参与作者：冯霄

通讯作者：马嘉泽

第一作者：王彧斐

论文类型：期刊论文

论文概要：马嘉泽,王彧斐,冯霄，Simultaneous optimization of pump and cooler networks in a cooling water system，APPLIED THERMAL ENGINEERING，2017，卷: 125 页: 377-385

论文题目：Simultaneous optimization of pump and cooler networks in a cooling water system