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RESEARCH OF APARTMENTS’ AIR REGIME IN THE PROCESS OF OPERATION AND RECONSTRUCTION

Insufficient air exchange of apartments in gasified apartment residential buildings, as well as an apartment’s air balance when using mechanical ventilation can cause the formation and accumulation of carbon monoxide. This work is aimed at studying the air exchange of apartments when installing kitchen hoods in apartment buildings, as well as insufficient air permeability of windows in PVC (Polyvinyl chloride) bindings during the cold season. Analytical calculations and a full-scale experiment are carried out in two apartments with and without kitchen hood. The calculated air exchanges, actual air exchanges are determined: in normal operation by tenants and in conditionally maximum operating mode with open windows. The comparison of the results of analytical calculations with experimental data shows insufficient air permeability of PVC windows to maintain the necessary air exchange of natural ventilation. It becomes obvious that there are two ways to increase air exchange: regulated - opening vents and non-normative - installation of mechanical hoods. At the same time, the use of mechanical hoods can disrupt the operation of the natural ventilation system.