Identification of Design Modifications for Implementing Optimal HEN Cleaning Schedules

Chuei Tin Chang, Bo Jyun Liao

Research output: Chapter in Book/Report/Conference proceedingChapter


Due to fouling in the heat-transfer units, the target temperatures of process streams in a heat exchanger network (HEN) may not always be achievable after a long period of operation. To address this practical issue, the conventional cost-optimal HEN design must be modified to accommodate online cleaning operations via proper allocation of area margins, bypasses, spares and auxiliary heaters/coolers. A solvable MINLP model has been developed in this work to simultaneously generate such design refinements and also the corresponding spare-supported cleaning schedules. The optimization results of one example are presented to demonstrate the feasibility of this approach.

Original languageEnglish
Title of host publicationComputer Aided Chemical Engineering
PublisherElsevier B.V.
Number of pages6
Publication statusPublished - 2018 Jan 1

Publication series

NameComputer Aided Chemical Engineering
ISSN (Print)1570-7946

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)
  • Computer Science Applications


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