Simultaneous Optimization of Synthesis and Scheduling of Cleaning in Flexible Heat Exchanger Networks

肖丰; 都健; 刘琳琳; 栾国颜; 姚平经

doi:10.1016/S1004-9541(10)60238-8

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Simultaneous Optimization of Synthesis and Scheduling of Cleaning in Flexible Heat Exchanger Networks

Updated：2026-01-06

- Simultaneous Optimization of Synthesis and Scheduling of Cleaning in Flexible Heat Exchanger Networks
- Chinese Journal of Chemical Engineering Vol. 18, Issue 3, Pages: 402-411(2010)
- Affiliations：
  
  Institute of Process System Engineering, School of Chemical Engineering, Dalian University of Technology,Dalian,China,116012
- Author bio：
- Funds：
- DOI：10.1016/S1004-9541(10)60238-8
  CLC：
- Published：2010
- Accepted：
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XIAO Feng, DU Jian, LIU Linlin, LUAN Guoyan, YAO Pingjing. Simultaneous Optimization of Synthesis and Scheduling of Cleaning in Flexible Heat Exchanger Networks[J]. , 2010, 18(3): 402-411.
DOI：

XIAO Feng, DU Jian, LIU Linlin, LUAN Guoyan, YAO Pingjing. Simultaneous Optimization of Synthesis and Scheduling of Cleaning in Flexible Heat Exchanger Networks[J]. , 2010, 18(3): 402-411. DOI： 10.1016/S1004-9541(10)60238-8.

摘要

Abstract

A novel methodology is presented for simultaneously optimizing synthesis and cleaning schedule of flexible heat exchanger network(HEN)by genetic/simulated annealing algorithms(GA/SA).Through taking into account the effect of fouling process on optimal network topology

a preliminary network structure possessing two-fold oversynthesis is obtained by means of pseudo-temperature enthalpy(

T-H

)diagram approach prior to simultaneous optimization.Thus

the computational complexity of this problem classified as NP(Non-deterministic Polynomial)-complete can be significantly reduced.The promising matches resulting from preliminary synthesis stage are further optimized in parallel with their heat exchange areas and cleaning schedule.In addition

a novel continuous time representation is introduced to subdivide the given time horizon into several variable-size intervals according to operating periods of heat exchangers

and then flexible HEN synthesis can be implemented in dynamic manner.A numerical example is provided to demonstrate that the presented strategy is feasible to decrease the total annual cost(TAC)and further improve network flexibility

but even more important

it may be applied to solve large-scale flexible HEN synthesis problems.

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