1 Introduction
2 Methodology
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Phase 1- Sustainability of the initial design is assessed according to LCSA approach. Environmental impacts, economic aspects and social issues are obtained compiling inputs and outputs of the system object of study and evaluating a set of suitable indicators.
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Phase 2- Redesign process is carried out incorporating sustainability aspects. Several sustainability strategies can be proposed according to the Life Cycle Design Strategy (LiDS) wheel [10]. A new inventory of the production stage relative to the new product design is performed and the sustainability indicators associated with the redesign are quantified.
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Phase 3- Comparing designs. The sustainability of both initial design and redesign is compared through environmental, economic and social indicators. To interpret the results obtained associated with the redesign and to know if a sustainability im-provement has been reached, a parallel representation of indicators [5] is chosen instead of a sustainability aggregated index.
3 Case Study
Furniture piece type | Units | Mass (kg) | Material type | Processing | BME (€) | |
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Energy (MJ) | Tw (s) | |||||
1. Accessories bar | 5 | 1,2 | ASTM A588 | 0,05 | 56,9 | 4,8 |
2. Warehouse ledge | 4 | 3,8 | Walnut wood | 0,07 | 14,7 | 69,5 |
3. Chipboard shelf | 2 | 68,7 | Lam. chipboard ASTM A588 | 0,37 | 125,6 | 182,7 |
4. Glass shelf | 3 | 29,7 | ASTM A588 Templat. glass | 0,11 | 53,3 | 151,5 |
5. Exhibitor furnit. | 2 | 66,2 | Lam.chipboard A1 6061A Templat. glass | 4,94 | 2741,3 | 199,1 |
6. Central table | 1 | 58,2 | Walnut wood ASTM A588 Templat. glass | 0,38 | 198,3 | 422,2 |
7. Storefront furnit. | 1 | 92,9 | Lam. chipboard ASTM A588 | 0,86 | 985,6 | 121,1 |
8. Ground level shelf | 1 | 33,4 | Lam. chipboard | 0,46 | 223,2 | 89,7 |