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PERFORMANCE EVALUATION OF NATURAL VENTILATION THROUGH WINDOWS WITH HORIZONTAL BLADE SHUTTERS

Abstract : The use of shutters can reduce the drawbacks of natural ventilation on intrusion risks and acoustic problems. However, when the shutters are used with single-sided ventilation, the air change rate is too deeply reduced. This study shows that the air change rate is maintained to acceptable values in cross-ventilation contrary to single-sided natural ventilation for horizontal blade shutters. An experimental investigation is carried out on a hotel room with or without shutter in Corsica, France. The air change rates are given out by the tracer gas technique using carbon dioxide. The concentration decay method is applied and the decrease of tracer gas concentration in the room is measured by 9 CO 2 sensors in various positions. Air change rates are given for different wind orientations and speeds. Even if the shutters reduce by 45% the window opening surface on one side, the air change rate can be kept up to 80% of that with a plain opening without shutter since it is limited by the other side window which has smaller opening surface.
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Shuqing Cui, Riccardo Issoglio, Juslin Koffi, Mohamed Mankibi, Pascal Stabat, et al.. PERFORMANCE EVALUATION OF NATURAL VENTILATION THROUGH WINDOWS WITH HORIZONTAL BLADE SHUTTERS. ISIAQ conference of Indoor Air 2014, Jul 2014, Hong Kong, China. ⟨hal-01458084⟩

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