A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessment of the economic and environmental impact of double glazed façade ventilation systems in Mediterranean climates
Free convection is the most often used method in order to reduce solar load gains on a building with double glazed façades (DGFs). However, depending on the climate factors, the thermal performance of a DGF may not be satisfactory and extra energy costs are required to obtain suitable comfort conditions inside the building. Forced ventilation systems are a feasible alternative to improve the thermal performance of a DGF in Mediterranean climates where large solar gains are a permanent condition throughout the year. In this paper the feasibility of using diverse forced ventilation methods in DGF is evaluated. In addition, an economical comparison between different mechanical ventilation systems was performed in order to demonstrate the viability of DGF forced ventilation. Moreover, an environmental study was carried out to prove the positive energetic balance on cooling loads between free and forced convection in DGF for Mediterranean climates. For this investigation, a CFD model was used to simulate the thermal conditions in a DGF for the different ventilation systems. Results obtained for heat flux, temperature and reductions in solar load gains were analyzed and applied for the economic and environmental research. ; Peer Reviewed ; Postprint (published version)
Assessment of the economic and environmental impact of double glazed façade ventilation systems in Mediterranean climates
Free convection is the most often used method in order to reduce solar load gains on a building with double glazed façades (DGFs). However, depending on the climate factors, the thermal performance of a DGF may not be satisfactory and extra energy costs are required to obtain suitable comfort conditions inside the building. Forced ventilation systems are a feasible alternative to improve the thermal performance of a DGF in Mediterranean climates where large solar gains are a permanent condition throughout the year. In this paper the feasibility of using diverse forced ventilation methods in DGF is evaluated. In addition, an economical comparison between different mechanical ventilation systems was performed in order to demonstrate the viability of DGF forced ventilation. Moreover, an environmental study was carried out to prove the positive energetic balance on cooling loads between free and forced convection in DGF for Mediterranean climates. For this investigation, a CFD model was used to simulate the thermal conditions in a DGF for the different ventilation systems. Results obtained for heat flux, temperature and reductions in solar load gains were analyzed and applied for the economic and environmental research. ; Peer Reviewed ; Postprint (published version)
Assessment of the economic and environmental impact of double glazed façade ventilation systems in Mediterranean climates
Valentín Ruiz, David (author) / Guardo Zabaleta, Alfredo de Jesús (author) / Egusquiza Estévez, Eduard (author) / Valero Ferrando, Ma. del Carmen (author) / Alavedra, Pere (author) / Universitat Politècnica de Catalunya. Departament de Mecànica de Fluids / Universitat Politècnica de Catalunya. FLUIDS - Enginyeria de Fluids
2013-09-30
Article (Journal)
Electronic Resource
English
Glass construction , Forced convection , Àrees temàtiques de la UPC::Edificació::Instal·lacions i acondicionament d'edificis::Instal·lacions de ventilació , Facades , Àrees temàtiques de la UPC::Edificació::Impacte ambiental , Sealed double glazing , Building thermal performance , Cooling load savings , Àrees temàtiques de la UPC::Edificació::Materials de construcció::Vidre , Double glazed façades (DGF) , Façanes , Àrees temàtiques de la UPC::Edificació::Aspectes econòmics , Coanda nozzle , Environmental impact , Segellat de doble vidre
DDC:
690
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