Prevalent using of semi-transparent solar cells in buildings is depending on its efficient implementation, and since the 1990’s using of double skin façade specially in office buildings becomes an increasing constructions trend. Nevertheless its luxury view and psychological relief aspects which reflects on building users, façade buildings due its construction nature consumes high rates of energy. The study completes a late research, and shows investigation by computational fluid dynamics simulation on other geometrical configurations installing semi-transparent photo-voltaic cells inside façade cavity, evaluating cells performance with cooling the cavity by ventilation air flow rate supplied to the conditioned zone, for the purpose of indoor air quality. Examining different geometries to improve air circulation inside the cavity is the main objective of this study. Comparison illustrating effect of different weather conditions based on maximum values of solar radiation and external temperature in summer season obtained from test reference years on photo-voltaic cell performance has been shown for two cities, one in the Middle East and the other in Europe. Moreover, a simplified thermal resistance model was also illustrated and used to evaluate the non-ventilated case of the same double skin façade composition.
Analysis of active facades integrated with PV cells in different climates
DE CARLI, MICHELE;ZARRELLA, ANGELO;
2015
Abstract
Prevalent using of semi-transparent solar cells in buildings is depending on its efficient implementation, and since the 1990’s using of double skin façade specially in office buildings becomes an increasing constructions trend. Nevertheless its luxury view and psychological relief aspects which reflects on building users, façade buildings due its construction nature consumes high rates of energy. The study completes a late research, and shows investigation by computational fluid dynamics simulation on other geometrical configurations installing semi-transparent photo-voltaic cells inside façade cavity, evaluating cells performance with cooling the cavity by ventilation air flow rate supplied to the conditioned zone, for the purpose of indoor air quality. Examining different geometries to improve air circulation inside the cavity is the main objective of this study. Comparison illustrating effect of different weather conditions based on maximum values of solar radiation and external temperature in summer season obtained from test reference years on photo-voltaic cell performance has been shown for two cities, one in the Middle East and the other in Europe. Moreover, a simplified thermal resistance model was also illustrated and used to evaluate the non-ventilated case of the same double skin façade composition.Pubblicazioni consigliate
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