Simultaneous Utility and Heat Exchanger Area Targeting for Integrated Process Synthesis and Heat Integration

Lingxun Kong, Yaqing Wu, Christos T. Maravelias

Research output: Contribution to journalArticlepeer-review

16 Scopus citations

Abstract

We propose a mixed-integer nonlinear programming (MINLP) model for simultaneous utility and heat exchanger area targeting with variable stream conditions. The model represents the composite-curve-based area targeting method by constructing the hot and cold composite curves mathematically. We introduce a "dynamic" enthalpy grid onto which the stream inlet/outlet temperatures and enthalpies are mapped. By calculating the temperatures at each grid point and the stream heat duties at each interval, the utility consumption and heat exchanger areas are simultaneously optimized using an economic criterion. We discuss preprocessing methods tailored to aid the solution of the proposed MINLP model. The model is applied to two illustrative examples as well as an example where it is integrated with a process synthesis model.

Original languageEnglish (US)
Pages (from-to)11847-11859
Number of pages13
JournalIndustrial and Engineering Chemistry Research
Volume56
Issue number41
DOIs
StatePublished - Oct 18 2017
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)
  • Industrial and Manufacturing Engineering

Fingerprint

Dive into the research topics of 'Simultaneous Utility and Heat Exchanger Area Targeting for Integrated Process Synthesis and Heat Integration'. Together they form a unique fingerprint.

Cite this