| Autor: |
Carrillo Arancibia, Pamela Ivón, Pagès Ramon, Anna |
| Přispěvatelé: |
Universitat Politècnica de Catalunya. Doctorat en Arquitectura, Energia i Medi Ambient, Universitat Politècnica de Catalunya. Departament de Tecnologia de l'Arquitectura, Universitat Politècnica de Catalunya. AiEM - Arquitectura, energia i medi ambient |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
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| Popis: |
This paper contributes to studies with a global view of buildings environmental impact, considering the main stages of the building life cycle. The objective is to determine the energy trade-off between the operational improvement gained with a passive strategy and the embodied energy associated to it. The evaluation contemplates a hypothetical case study situated in Barcelona subjected to a Mediterranean climate. Three versions of the same south oriented dwelling are outlined according to local regulations. Two versions consider a passive architectural solution, a balcony as a solar shade and a glazed gallery performing as a greenhouse. Both elements control the energy demand for interior conditioning (cooling and heating). Calculations compare the energy reduction in the operational stage with the embodied energy and emissions data related to construction materials for a 50-year period. Results show that sometimes, when energy and emissions from operational and embodied stage are accounted, the passive strategy can be counterproductive. So, attention must be paid on the election of passive solutions and their environmental impact, specially once they are declared as part of energy efficiency strategies. Only global calculations, considering the different stages in a building life cycle, can demonstrate the energy efficiency. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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