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Islam, Hamidul; Jollands, Margaret; Setunge, Sujeeva; Bhuiyan, Muhammed A.
Energy and buildings, 01/2015, Letnik: 87Journal Article
•This paper describes optimization approach of balancing LCC and LCEI for buildings.•We evaluate the effects of various wall, floor and roofing assemblage designs.•LCC and LCEI along with optimization algorithm can identify optimum solution.•Weighted-sum MOO approach provides a multi-criteria decision making options. This paper describes an optimization approach of balancing life cycle cost and environmental impacts for typical Australian houses. It evaluates the effects of various alternative wall, floor and roofing assemblages to select an optimized house design. A Base House was modified with 18 alternative wall, 4 floor and 8 roofing designs. Each design was varied in such a way that it achieved specific star rating based on materials and assemblages. Two sets of objective functions, namely life cycle cost and environmental impacts were evaluated for each design using life cycle costing and life cycle assessment approaches, respectively. The use of Linear Programming helped to identify alternative best designs depending on single-objective (SOO) or multi-objective optimization (MOO). Outcomes from SOO depended on the choice of particular objective function, while outcomes from MOO depended on the decision-makers preferences in terms of weightings. A high star-rating weatherboard house with ceramic tiles and wooden floor, and skillion flat roofing was the best design if the weighting of all five objective functions were equal. A house designed with these optimal wall, floor and roofing had a much higher rating (by 1.3 stars), lower environmental impacts (by 10–20%) for the same life cycle cost.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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