Automated targeting model for synthesis of heat exchanger network with utility systems

Wui Seng Goh, Yoke Kin Wan, Chun Kiat Tay, Rex T. L. Ng, Denny K. S. Ng*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)


Energy recovery within processes via heat exchanger network (HEN) to minimise the external utilities has been well established. Due to the close energy interactions between HEN and the utility system, it is important to synthesise these two elements simultaneously. In this work, a novel systematic approach for synthesis of HEN with utility systems is presented. Multiple cascades automated targeting is applied to determine minimum total operating cost of the trigeneration system, minimum hot and cold utility targets for heat integration prior to detailed design. Besides, the selection and allocation of utilities, distribution of steam, and potential power generation can also be determined. Meanwhile, the types of boiler fuel for the trigeneration utility system is also identified. An illustrative example with two scenarios is solved to illustrate the proposed approach.

Original languageEnglish
Pages (from-to)1272-1281
Number of pages10
JournalApplied Energy
Publication statusPublished - 15 Jan 2016


  • Automated targeting
  • Heat exchanger network
  • Optimisation
  • Trigeneration system

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • General Energy


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