Experimental study of the combination of a positive input ventilation and active air vents on the air change rates of a house
Résumé
This study aims to experimentally evaluate the influence of the combination of a supply only ventilation, called here positive input ventilation,
and innovative active air vents on the Indoor Air Quality of a house.
The positive input ventilation draws fresh air from the outside, filters
and pre-heats it before supplying it to living areas. Active air vents are
small motorised dampers set up in the upper part of windows able to
move according to local pollutants measurements or to the measurements of other active air vents in the house. This combination is
expected to improve the Indoor Air Quality by increasing efficiently the
air change rate of a room when it is too polluted. The goal of the tests
presented in this paper is to evaluate quantitatively the air change rate
in a real size environment. To do so, a positive input ventilation and
active air vents are set up in an experimental house. The tests were carried out in 3 different rooms. For each room, the air change rate is evaluated for different configurations of the combination. CO2 is used as a
trace gas to evaluate the air change rate. Results are promising and
show that the studied combination allows a significant of the air change
rate of each room. An appropriate Demand Control Ventilation strategy
based on the sensors of each active air vents and the communication
between all the devices would thus lead to an efficient while simple
improvement in the use of a positive input ventilation system.
Domaines
Sciences de l'ingénieur [physics]
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Leconte et al. - 2020 - Experimental study of the combination of a positiv.pdf (1.62 Mo)
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