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A Multi-Objective Optimization Method for the Design of a Sustainable House in Ecuador by Assessing LCC and LCEI

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  • Yuan Chen

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

  • Stephanie Gallardo

    (School of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China)

Abstract

The building industry significantly contributes to global warming, driving the demand for sustainable construction and green buildings. However, barriers like cost concerns and limited knowledge persist. Previous studies have used multi-objective optimization (MOO) to minimize life cycle cost and environmental impact, often emphasizing energy efficiency. In equatorial climates, unique factors like material selection must be considered. This study assesses the cost-effectiveness of sustainable materials, focusing on envelope materials in Ecuador. The case study is a single-family house in the equatorial climate, optimized using Building Information Modeling (BIM), Life Cycle Assessment (LCA), and Life Cycle Cost Analysis (LCCA). In this study, a MOO process using the weighted sum approach (WSA) identifies sustainable house designs. The sustainable houses achieve a 98% decrease in Ozone Depletion Potential, a 75% reduction in Global Warming Potential, and a 45% drop in Primary Energy Demand, although they still incur a 30% increased cost. The results offer a foundation for cost-effective, eco-friendly housing solutions. Bamboo emerges as a promising material with local acceptance. This research highlights the significance of material selection in sustainable construction and provides a replicable approach for diverse settings. It aims to promote sustainable housing solutions in Ecuador and beyond.

Suggested Citation

  • Yuan Chen & Stephanie Gallardo, 2023. "A Multi-Objective Optimization Method for the Design of a Sustainable House in Ecuador by Assessing LCC and LCEI," Sustainability, MDPI, vol. 16(1), pages 1-23, December.
    • Handle: RePEc:gam:jsusta:v:16:y:2023:i:1:p:168-:d:1306339
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    References listed on IDEAS

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    1. Kylili, Angeliki & Ilic, Milos & Fokaides, Paris A., 2017. "Whole-building Life Cycle Assessment (LCA) of a passive house of the sub-tropical climatic zone," Resources, Conservation & Recycling, Elsevier, vol. 116(C), pages 169-177.
    2. Huang, Tao & Shi, Feng & Tanikawa, Hiroki & Fei, Jinling & Han, Ji, 2013. "Materials demand and environmental impact of buildings construction and demolition in China based on dynamic material flow analysis," Resources, Conservation & Recycling, Elsevier, vol. 72(C), pages 91-101.
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