Comparative life cycle assessment of bio‐based insulation materials: Environmental and economic performances
نویسندگان
چکیده
Insulation materials decrease the final energy consumption of buildings. In Germany, fossil and mineral insulations dominate market despite numerous life cycle assessments (LCAs) showing that bio-based can offer environmental benefits. Evaluating results such LCAs is, however, complex due to a lack comparability or costs considered. The objective this study is comparing under equal conditions identify most environmentally friendly cost-efficient material. For purpose, comparative LCA costing (LCC) were conducted from “cradle grave” for four two nonrenewable insulations. insulation evaluated wood fiber, hemp flax, miscanthus. expanded polystyrene (EPS) stone wool. Key data obtained preceding thermal conductivity measurements ceteris paribus conditions. Eighteen impact categories assessed, direct cumulated along cycle. Results show fiber A hotspot analysis found that, agriculturally sourced insulations, cultivation had largest impact, insulation, it was manufacturing. use phase (including installation) constituted cost hotspot. impacts end-of-life incineration strongly influenced by components materials. Overall, more than EPS wool in 11 categories. LCC miscanthus be cost-efficient, yet integration latter still limited. It concluded biomass an economically promising Comparability performance increased applying same system boundary functional unit, assessment methodology, measurements.
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ژورنال
عنوان ژورنال: Gcb Bioenergy
سال: 2021
ISSN: ['1757-1693', '1757-1707']
DOI: https://doi.org/10.1111/gcbb.12825