I. Pietkun-Greber, D. Suszanowicz
Opole University, Chair of Process Engineering, Opole, PL

RESEARCH ON THE INFLUENCE THE EFFECTIVENESS OF DIFFERENT TYPES OF VENTILATION SYSTEMS ON AIR QUALITY IN MULTI-FAMILY RESIDENTIAL BUILDINGS


Currently, regulations and norms require control of building ventilation only in terms of air velocity, which unfortunately does not always guarantee the ideal air quality required for health reasons. The study investigates the effectiveness of various types of ventilation in multi-family residential buildings (buildings occupied by more than one family) with particular emphasis on natural ventilation, which is the most common solution in residential buildings in Poland. The effectiveness of ventilation systems and their influence on basic properties of air quality, i.e. carbon dioxide concentration, relative humidity and temperature were examined, as well as the possibilities of changing the work done by ventilation systems in multi-family residences to adjust factors pertaining to air quality. The results obtained from the research show that, in the case of multi-family residential buildings, natural ventilation does not function effectively and should be replaced by mechanical ventilation - preferably intake and exhaust ventilation with heat recovery.

Keywords: ventilation system, multifamily buildings, air quality, carbon dioxide concentration, air humidity