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The effect of indirect GHG emissions costs on the optimal water and energy supply systems

Vakilifard, N., Bahri, P.A.ORCID: 0000-0003-4661-5644, Anda, M.ORCID: 0000-0001-7398-4192 and Ho, G.ORCID: 0000-0001-9190-8812 (2019) The effect of indirect GHG emissions costs on the optimal water and energy supply systems. In: Kiss, A.A., Zondervan, E., Lakerveld, R. and Özkan, L., (eds.) 29th European Symposium on Computer Aided Process Engineering. Elsevier B.V., pp. 1207-1212.

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This study investigates the effect of indirect greenhouse gas (GHG) emissions on the optimal long-term planning and short-term operational scheduling of a desalination-based water supply system. The system was driven by grid-electricity and surplus output from residential rooftop photovoltaics to deliver water and energy to urban areas. The interactive two-level mixed integer linear programming model took into account demands, system configurations, resources capacities and electricity tariffs as well as GHG emission factor associated with the source of grid electricity. Both system and carbon abatement costs were considered in the formulation of the objective function. The optimal decisions for Perth (Australia) resulted in $47,449,276 higher discounted total cost but 51,301.3 tCO2eq less GHG emissions over 15 years planning horizon compared to when only system costs were minimised. Finally, the predominant effect of the indirect GHG emissions costs over system costs on the optimal solutions indicated their high sensitivity towards the source of purchased grid electricity.

Item Type: Book Chapter
Murdoch Affiliation(s): School of Engineering and Information Technology
Publisher: Elsevier B.V.
Copyright: © 2019 Elsevier B.V.
Other Information: Series title: Computer Aided Chemical Engineering; Vol. 46
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