F. Chella
D.S.S.A.R.R., Faculty of Architecture University “G. D’Annunzio”, Pescara , Italy
O. Boccia
D.S.S.A.R.R., Faculty of Architecture University “G. D’Annunzio”, Pescara , Italy
P. Zazzini
D.S.S.A.R.R., Faculty of Architecture University “G. D’Annunzio”, Pescara , Italy
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http://dx.doi.org/10.3384/ecp110571930Published in: World Renewable Energy Congress - Sweden; 8-13 May; 2011; Linköping; Sweden
Linköping Electronic Conference Proceedings 57:25, p. 1930-1937
Published: 2011-11-03
ISBN: 978-91-7393-070-3
ISSN: 1650-3686 (print), 1650-3740 (online)
The authors propose a comparison among the first experimental and numerical results of an analysis carried out about the theme of the natural ventilation and the energy efficiency relatively to a device called Ventilated Illuminating Wall (VIW). The VIW is represented by a 1:1 prototype scale model; constituted by a precast removable manufactured product set to a window of the room; able both to transport the natural light; captured by the coverage; in underground area; and to introduce outside air for the required indoor ventilation. The experimental data; object of a work previously carried out; are obtained from temperature and air speed measurements in different points inside the tested room.
Based on some meaningful environmental parameters; internal and external temperature of the building; direction and wind speed in different times of the year; the device performances are evaluated through the software Fluent/Airpak; able to make fluid dynamics modeling and simulations; with the aim to calculate the air flow rate distributions; air speed and temperature field inside the room. The numerical analysis is carried out in steady state condition and produces results that; sometimes; are overestimated with respect to experimental ones. The results may be improved by a transient analysis.
Ventilated illuminating wall; Natural ventilation; Energy efficiency; Thermal comfort; CFD
