Performances, classification and impact on energy consumption of air filters for balanced ventilation systems with heat recovery for dwellings

Résumé et principaux résultats

Il s'agit d'un article support d'une présentation à la conférence Indoor Air 2014, Hong-Kong, 7-12 juillet 2014
Title: Performances, classification and impact on energy consumption of air filters for balanced ventilation systems with heat recovery for dwellings
Abstract:This paper has been presented on the occasion of Indoor Air 2014 conference, Hong-Kong, 7-12 July 2014. The objective of our study (3 years) was to determine the performances of commercially available panel mini-pleated filters (G4, M5 and F7) for balanced ventilation systems for dwellings as they are continuously used for long-term (1 year) with real outdoor air. Fractional efficiency (0.2 to 5 µm), pressure drop and dust holding capacity of the filters have been measured as function of time. Results show that all the filters are not equal and that the efficiency of the electret filters decreases as function of time while that of the mechanical effects only filters increases. The influence of the use of a G4 prefilter installed upstream of F7 filters as well as the influence of the pleat width have been shown on the pressure drop of the filters and on the energy consumption of a balanced ventilation system. A new way for testing and classification is proposed for such filters.