Physics – Medical Physics
Scientific paper
2010-03-22
Roomvent 2007: 10th International Conference on Air Distribution in Rooms, Helsinki : Finland (2007)
Physics
Medical Physics
Scientific paper
A mechanical ventilation principle used in French residential buildings was tested in the experimental house of the CSTB research centre. The experiments dealt with pollutant removal efficiency of this ventilation principle, mainly with air tightness and the influence of internal doors. Tracer gas constant injection method was used to simulate the pollution source in the living room. SF6 concentrations were measured in several rooms. The results showed that the air flow routes were in agreement with the theory as long as internal doors were closed. When doors were open, the air pattern was disturbed a lot; a great quantity of the emitted pollutant was measured in the bedrooms. Besides, stack effect promotes the pollutant moving towards the bedrooms under higher indoor-outdoor air temperature differences. In addition, the results showed that if the opening of the bedroom window increases the air change rate, it does not guarantee a good indoor air quality.
Allard Francis
Husaunndee Ahmad
Koffi Juslin
Ribéron Jacques
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