4.2. Air exchange calculation

The required air exchange in the premises is determined by the type and amount of harmful emissions that accompany human activity and technological processes. In residential and public buildings, the main hazards are carbon dioxide, moisture emissions and heat losses.
In production, in addition to heat and moisture excess, there may be dust and various gases.

Consumption of air removed according to design standards [1] through exhaust ventilation in residential buildings is given in Appendix. one.

The size of the hood from the kitchen Lkuh , toilet Ltual and bathroom Lvann , m3 / h, given a specific value, the flow of exhaust air from the living room, m3 / h

Log house = 3 F floor , (4.1)

where F floor is the total floor area of ​​living rooms, m2.

The living rooms are ventilated through the ventilation ducts of the kitchen, toilet and bathroom, therefore the condition

Lkuh + Lvann + Ltool ³ Lzhil.kom . (4.2)

If this condition is not met - the kitchen air exchange should be increased by the required amount.

The axonometric scheme should indicate the flow of air from the rooms through each louvered grille.