Development of a multi-functional ventilated façade with an integrated collector-storage: numerical model and experimental facility
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hdl:2117/13495
Tipus de documentText en actes de congrés
Data publicació2011
Condicions d'accésAccés obert
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Abstract
The paper reports on physical modeling and experimental evaluation of glazed systems. A multi-functional ventilated façade with an integrated collector-storage is developed and mounted on a test cell facility under
real weather conditions. The component uses solar radiation to produce solar heated water flow, which in turn can provide space heating or fulfill domestic hot water demands. Different operational modes of the
ventilation channel are analyzed in order to improve the thermal performance of the buildings with glazed façades.
The existing numerical platform for the prediction of the thermal performance of buildings and solar systems is used to implement a numerical model to address the multi-functional ventilated façade with integrated collector-storage element. The model uses the measured outdoor data as boundary conditions to obtain predictions by means of a general energy balance in the test room and the façade component. The model
permits different levels of simulation depending on the desired precision in each element, applying a modular methodology. In this study, the convection heat transfer coefficient within the parallelepiped storage tank is obtained from a direct numerical simulation (DNS) of turbulent natural convection flow of water, while the
remaining empirical information is obtained from the literature for similar geometries.
CitacióKizildag, D.; Rodriguez, I.; Oliva, A. Development of a multi-functional ventilated façade with an integrated collector-storage: numerical model and experimental facility. A: ISES Solar World Congress. "ISES Solar World Congress 2011". Kassel: 2011, p. 1-10.
Versió de l'editorhttp://cms.swc2011.org/loginarea/paperdownload?sort=p.lastname
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