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Development of a multi-objective optimization model for determining the optimal CO2 emissions reduction strategies for a multi-family housing complex

Kwangbok Jeong, Taehoon Hong, Jimin Kim and Kyuman Cho

Renewable and Sustainable Energy Reviews, 2019, vol. 110, issue C, 118-131

Abstract: Measures to improve the building energy efficiency of deteriorated multi-family housing complexes (MFHCs) require trade-offs between economic and environmental feasibility, and therefore these aspects should be considered simultaneously. Towards this end, this study aimed to develop a multi-objective optimization model for determining the optimal CO2 emission reduction (CER) strategies for MFHCs that can be used not only by experts but also by non-experts. This study used integrated multi-objective optimization with a genetic algorithm as an optimization methodology. The developed model, which considers the five optimization objectives (i.e., initial investment cost, net present value, savings-to-investment cost, CER, and marginal abatement cost) at the same time, can review a total of 31,200 scenarios combined with four energy saving measures (i.e., insulation, window, lighting, and shading systems). To verify the feasibility of the developed model, this study conducted a case study targeting ‘D’ MFHC in South Korea. First, the accuracy of the calibration of the energy simulation model for ‘D’ MFHC (coefficient of variation of the root mean square error: 12.84%; mean bias error: 0.39%) satisfied the criteria of ASHRAE Guideline 14; second, I8 (expanded polystyrene board - type 1 (No. 4))-L3 (LED lighting installed in louvered ceiling) and I8 (expanded polystyrene board - type 1 (No. 4)) - L4 (ceiling-mounted light) were determined to be the optimal CER strategy (integrated multi-objective optimization score: 0.2252). The developed model can help building owners make the optimal decision on green modeling by entering simple information (e.g., region, total floor area, etc.).

Keywords: Multi-objective optimization; CO2 emissions reduction strategy; Calibration; Life cycle cost; Life cycle CO2; Energy saving measure (search for similar items in EconPapers)
Date: 2019
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DOI: 10.1016/j.rser.2019.04.068

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