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Abstract
Global environmental issues are arising over the developed and developing world. Improving energy efficiency and reducing Green Gases emissions become the key issues in all the economic sectors and, in particular, the building sector that is one of the most energy-consuming. It is, therefore, important to find alternative building materials with low-environmental impact contributing to global sustainability. In that context, this study reports on the performance of sustainable materials produced from natural resources as hemp-concrete or from recycled-waste nonbiodegradable materials including recycled polyethylene terephthalate. Three façades employing three different materials (hemp-concrete, hemp-concrete with brick and recycled polyethylene terephthalate) were investigated in three cities in France (Nancy and Carpentras) and Italy (Perugia) with different climate. The energy performance of each façade was assessed in terms of cooling and heating demands, electrical consumption for a constant flow rate ventilation mode, considering different orientations. The study also shows the effect of window size (10%, 25%, and 40%) on the annual energy consumption.
Nomenclature
| Acronyms | ||
| CoDyBa | = | Comportment Dynamique des Bâtiments |
| COP | = | coefficient of performance |
| GHGs | = | greenhouse gases |
| HC | = | hemp concrete |
| HCB | = | hemp concrete associated with brick |
| R-PET | = | recycled polyethylene terephthalate |
| SPARK | = | simulation problem analysis and research kernel |
Notes
1 Technical details about the R-PET are available in Ingrao et al. (Citation2014).