化工学报2025，Vol.76Issue(12)：6477-6485,9.DOI:10.11949/0438-1157.20250743
功热集成中压力操作路径和换热匹配的同步优化
Simultaneous optimization of pressure operating path and heat exchange matches in work and heat integration
摘要
Abstract
Traditional optimization design methods for work and heat exchange networks often first determine the pressure adjustment processes and then conduct heat exchanger network design.Superstructure-based simultaneous optimization methods for work and heat networks can achieve better overall system performance because they can consider the coupling and interactions between work and heat.However,this type of simultaneous optimization model is usually highly non-convex and non-linear,leading to solution difficulties,especially when facing large-scale industrial problems.To address this difficulty,this study proposes a deterministic optimization design method based on a dynamic transportation model.This method leverages the characteristics of the transportation model to efficiently determine the pressure operating path and heat exchange matching scheme under optimal work and heat integration.It ensures linear constraints for the heat integration model and provides guidance for the detailed design of the work and heat exchange network.A case study of power and heat integration involving 14 heat exchange streams was conducted.The proposed method generated a new pressure operating path and corresponding heat exchange matching within 1000 s.The total cost target for this solution was 8761480.49 USD·a-1,which is highly close to the cost-optimal solution found in the literature,validating the accuracy and effectiveness of the proposed method.关键词
功热集成/数学规划/动态运输模型/优化设计/过程系统Key words
work and heat integration/mathematical programming/dynamic transportation model/optimal design/process system分类
化学化工引用本文复制引用
周文晋,张雅桐,赵志仝,张玮..功热集成中压力操作路径和换热匹配的同步优化[J].化工学报,2025,76(12):6477-6485,9.基金项目
国家自然科学基金项目(22178241,22308240) （22178241,22308240）
