Designing energy supply chains with the p-graph framework under cost constraints and sustainability considerations

Leisha Vance, Istvan Heckl, B. Bertók, Heriberto Cabezas, F. Friedler

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

A computer-aided methodology for designing sustainable supply chains is presented using the P-graph framework to develop supply chain structures which are analyzed using cost, the cost of producing electricity, and two sustainability metrics: ecological footprint and emergy. They represent environmental burden in terms of land use and energy resources. The P-graph framework provides a mathematically rigorous procedure for synthesizing optimal and alternative networks subject to profitability considering ecological footprint and emergy inputs. Emergy is a measure of energy used in transformations directly and indirectly to make a product or maintain a service, or in our case, energy production. Emergy and ecological footprint complement each other because they represent very different aspects of sustainability. The proposed methodology is demonstrated with a supply chain whichprovides electric power and heat to an agricultural region utilizing agricultural wastes as renewable resources. The results indicate that, compared to electricity from the grid and/or natural gas, renewable energy resources can yield cost reductions of up to 17. % as well as ecological footprint and emergy reductions. This allows the design of more sustainable supply chains that are both cost-effective and less environmentally damaging.

Original languageEnglish
Pages (from-to)1009-1014
Number of pages6
JournalComputer Aided Chemical Engineering
Volume33
DOIs
Publication statusPublished - 2014

Fingerprint

Supply chains
Sustainable development
Costs
Electricity
Renewable energy resources
Agricultural wastes
Energy resources
Cost reduction
Land use
Natural gas
Profitability

Keywords

  • Emergy
  • Energy
  • Footprint
  • P-graph
  • Supply chain

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Computer Science Applications

Cite this

Designing energy supply chains with the p-graph framework under cost constraints and sustainability considerations. / Vance, Leisha; Heckl, Istvan; Bertók, B.; Cabezas, Heriberto; Friedler, F.

In: Computer Aided Chemical Engineering, Vol. 33, 2014, p. 1009-1014.

Research output: Contribution to journalArticle

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