Functional-unit-based life cycle optimization for design of sustainable product systems with application on biofuel supply chains

Dajun Yue, Fengqi You*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

We propose a life cycle optimization framework for sustainable design of hydrocarbon supply chains considering economic and environmental criteria that are based on the concept of "functional unit". With the functional-unit-based objective functions, we develop a biofuel supply chain system that is both cost-effective and environmentally sustainable. The ε-constraint method is applied for multi-objective optimization and a series of Pareto-optimal solutions are obtained which reveal the tradeoff between economic and environmental performances. Due to the introduction of functional-unit- based objectives, the resulting model is formulated as a mixed integer linear fractional program (MILFP), which can be challenging for global optimization. Therefore, we further introduce two tailored MILFP methods, namely parametric algorithm and reformulation-linearization method for the efficient solution. The model and solution methods are illustrated by the spatially explicit optimization of a potential county-level hydrocarbon biofuel supply chain in the state of Illinois.

Original languageEnglish (US)
Pages (from-to)1063-1068
Number of pages6
JournalComputer Aided Chemical Engineering
Volume33
DOIs
StatePublished - Jan 1 2014

Keywords

  • Biofuel supply chain
  • Functional unit
  • Life cycle optimization
  • Sustainable product system

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

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