| Summary: | 碩士 === 嘉南藥理大學 === 環境資源管理系 === 106 === The building will be a new mainstream concept on the environmental protection and energy-saving issues for the construction industry in the future. This paper focus on environmental issue of the building design by Life Cycle Assessment. The methodology is available to conduct by carbon footprint, Eco-indicator 99 and Impact 2002+ in this study. The case study was carried out for the four-story reinforced concrete structure in the southern area of Taiwan. The simulation performed to evaluate the environmental benefits for the four materials (wood, aluminum, stainless steel, and plastic) that applied on the doors and windows of buildings. Concerning Life cycle assessment (LCA) scope included the material production and construction stage, and assume 50-year life span was used to explore the environmental impacts for the building case. The results mainly include the comparison of the carbon footprint, environmental efficiency and simulating materials substitution scenarios as following:
1. The aluminum is the most energy-consuming, followed by the stainless steel; the wood is more efficiency on energy issues.
2. The carbon footprint results are in the order of 23.72 KgCO2-Eq. for aluminum, followed by 5.69 KgCO2-Eq. for stainless steel, and 3.31 KgCO2-Eq. for PVC and 0.03 KgCO2-Eq. for wood.
3. Eco-indicator 99 results, human health damage with Al aluminum materials as the highest, followed by PVC, wood is the most friendly; ecosystem quality is the highest in stainless steel, followed by aluminum; resource consumption is the highest in stainless steel, followed by aluminum, and the wood is relatively resource-saving. The environmental impact is the most single score of aluminum, the second is stainless steel and polyvinyl chloride, and the wood is the most environmentally friendly.
4. Impact 2002+ damage results, human health is highest with aluminum material; ecosystem quality is higher with stainless steel; resource consumption is highest for aluminum material; The single score is highest for the aluminum window, followed by PVC, followed by stainless steel, wood is minimal.
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