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http://hdl.handle.net/10553/44171
Título: | Numerical simulation and exergetic analysis of building ventilation solar chimneys | Autores/as: | Suárez-López, María José Blanco-Marigorta, Ana María Gutiérrez-Trashorras, Antonio José Pistono-Favero, Jorge Blanco-Marigorta, Eduardo |
Clasificación UNESCO: | 332201 Distribución de la energía 332203 Generadores de energía |
Palabras clave: | Solar chimney CFD Energy-efficient building Solar passive design |
Fecha de publicación: | 2015 | Editor/a: | 0196-8904 | Publicación seriada: | Energy Conversion and Management | Resumen: | The solar chimneys used in buildings are passive solar devices which improve natural ventilation. A detailed exergetic analysis has been developed in this work, both for general balance and specific variables. To apply this analysis, a three-dimensional CFD model has been built and validated with bibliographic experimental data. The values of the variables have been examined both inside and at the exit of the solar chimney, resulting in a detailed description of the inner phenomena and parameters influencing the exergetic efficiency. The results of this study offer new tools: a numerical methodology and an exergetic analysis, to improve the design of building ventilation solar chimneys. It also affords a deeper understanding of the thermal and fluid-dynamic behaviour, and suggests some qualitative improvements. However, the numerical data obtained from the case studied, show that solar chimneys as natural ventilation systems offer quite a small efficiency and will remain within the sphere of architectural decisions. | URI: | http://hdl.handle.net/10553/44171 | ISSN: | 0196-8904 | DOI: | 10.1016/j.enconman.2015.02.049 | Fuente: | Energy Conversion and Management [ISSN 0196-8904], v. 96, p. 1-11 |
Colección: | Artículos |
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