Multi-criteria decision support system of the photovoltaic and solar thermal energy systems using the multi-objective optimization algorithm

Jimin Kim, Taehoon Hong, Jaemin Jeong, Choongwan Koo, Kwangbok Jeong, Minhyun Lee

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

When the photovoltaic (PV) and solar thermal energy (STE) systems, which share the rooftop area, are installed in the same building, a trade-off problem occurs in terms of the energy, economic, and environmental aspects, and thus, steps need to solve this problem. Therefore, this study aimed to develop a multi-criteria decision support system of the PV and STE systems using the multi-objective optimization algorithm. This system was developed in the following six steps: (i) database establishment; (ii) designing the variables of the PV and STE systems; (iii) development of the analysis engine of the PV and STE systems; (iv) environmental and economic assessment from the life cycle perspective; (v) integrated multi-objective optimization (iMOO) with a genetic algorithm; and (vi) establishment of a multi-criteria decision support system. To verify the robustness and reliability of the developed model, an analysis of “D” City Hall and “I” Airport as target facilities was performed. The optimal PV and STE systems that consider the energy, economic, and environmental aspects at the same time were determined with respect to the 1.23 × 10 15 and 1.05 × 10 16 installation scenarios, respectively, in terms of effectiveness. The iMOO scores of the existing PV and STE systems installed in “D” City Hall and “I” Airport were 0.358 and 0.346, respectively, whereas those of the optimal solutions were 0.249 and 0.280, showing score improvements. In terms of efficiency, the times required for determining the optimal solutions were 20 and 30 min, respectively. The developed model makes the final decision-maker to find the optimal solution in introducing the PV and STE systems in the early design phase at the same time.

Original languageEnglish
Pages (from-to)1100-1114
Number of pages15
JournalScience of the Total Environment
Volume659
DOIs
Publication statusPublished - 2019 Apr 1

All Science Journal Classification (ASJC) codes

  • Environmental Engineering
  • Environmental Chemistry
  • Waste Management and Disposal
  • Pollution

Fingerprint Dive into the research topics of 'Multi-criteria decision support system of the photovoltaic and solar thermal energy systems using the multi-objective optimization algorithm'. Together they form a unique fingerprint.

  • Cite this