Publication detail

Relating Bridge Analysis for Heat Exchanger Network Retrofit Identification to Retrofit Design

Walmsley, T.G. Lal, N.S. Varbanov, P.S. Klemes, J.J.

Original Title

Relating Bridge Analysis for Heat Exchanger Network Retrofit Identification to Retrofit Design

Type

conference paper

Language

English

Original Abstract

The aim of the paper is to improve a recently developed automated HEN retrofit targeting method by linking the shapes of the Exchanger Shifted Composite Curve (ESCC) and Exchanger Grand Composite Curve (EGCC) to the required HEN retrofit design measures. The automated HEN retrofit targeting method is based on Bridge Analysis, which identifies new and existing utility paths for energy saving through the enhancement and/or addition of heat exchanger area and the installation of new exchangers. To build the required understanding, generic cases are analysed, one of which is presented. Links between the Exchanger Composite Curves with the required HEN retrofit design are established. The analysis concludes that the Heat Surplus-Deficit Cascade for some recovery exchangers may be divided two sections – Pinched and non-Pinched sections – to better represent and identify the number and type of modifications that a retrofit opportunity will require.

Keywords

Energy conservation; Heat exchangers; Bridge analysis; Composite curves; Grand composite curves; Heat exchanger network; Heat-exchanger areas; IMPROVE-A; Retrofit design; Two section; Retrofitting

Authors

Walmsley, T.G.; Lal, N.S.; Varbanov, P.S.; Klemes, J.J.

Released

1. 8. 2018

Publisher

Italian Association of Chemical Engineering - AIDIC

ISBN

2283-9216

Periodical

Chemical Engineering Transactions

Year of study

70

Number

70

State

Republic of Italy

Pages from

295

Pages to

300

Pages count

6

BibTex

@inproceedings{BUT152193,
  author="Walmsley, T.G. and Lal, N.S. and Varbanov, P.S. and Klemes, J.J.",
  title="Relating Bridge Analysis for Heat Exchanger Network Retrofit Identification to Retrofit Design",
  booktitle="Chemical Engineering Transactions",
  year="2018",
  journal="Chemical Engineering Transactions",
  volume="70",
  number="70",
  pages="295--300",
  publisher="Italian Association of Chemical Engineering - AIDIC",
  doi="10.3303/CET1870050",
  issn="2283-9216"
}