Publication detail

Heat exchanger network optimisation considering different shell-side flow arrangements

Li, N., Klemeš, J.J., Sunden, B., Wang, Q., Zeng, M.

Original Title

Heat exchanger network optimisation considering different shell-side flow arrangements

Type

journal article in Web of Science

Language

English

Original Abstract

Heat exchanger network synthesis (HENS) is an effective tool for heat recovery in chemical and petrochemical industries. This study aims to show a method for HENS with the consideration of different shell-side flow arrangements in shell-and-tube heat exchangers. The proposed MINLP model is modified from the stage-wise superstructure model, incorporating newly developed correlations for shell-side pressure drop calculation for the helical baffle. The objective is to minimise the total annual cost (TAC) with a trade-off between the cost of different shell-side heat exchangers, utility cost, and pumping cost. The selection of baffle design is decided by the saved pumping cost and the increased area cost. The proposed model is tested from different points of view: with/without utility constraints and different statuses of the streams. Three case studies are presented and compared with the results from the literature. The proposed method with different shell-side baffles can reduce the heat transfer area and pressure drop. For fixed utility consumptions, the TAC in a case study is decreased by 8.9% with mixed baffle types. Although the unit per area cost of the helical baffle is higher than the segmental baffle, the increased investment cost could be compensated by the reduced operation cost, especially for plants with high viscosity streams and long-term cost-saving.

Keywords

Heat exchanger network; Mathematical programming; Optimisation; Pressure drop; Shell-and-tube heat exchanger

Authors

Li, N., Klemeš, J.J., Sunden, B., Wang, Q., Zeng, M.

Released

15. 12. 2022

Publisher

Elsevier Ltd

ISBN

0360-5442

Periodical

Energy

Number

261

State

United Kingdom of Great Britain and Northern Ireland

Pages from

125081

Pages to

125081

Pages count

11

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0360544222019764

BibTex

@article{BUT179229,
  author="Jiří {Klemeš}",
  title="Heat exchanger network optimisation considering different shell-side flow arrangements",
  journal="Energy",
  year="2022",
  number="261",
  pages="125081--125081",
  doi="10.1016/j.energy.2022.125081",
  issn="0360-5442",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0360544222019764"
}