实验室变风量VAV系统风量计算实例

Room:***** lab

m^2->m^3/h

Room area117 m^2->

Height 4.8m

Min exhaust air volume3707m^3/h according to exhaust air 6.6times/h air exchange

1853m^3/h according to exhaust air 3.3times/h air exchange in nigh Damper Position Quantity Damper Type

Table Fume hood (1800mm)3***

Walk-in Fume hood (1800mm)1***

Oven exhaust point2

Room assistant exhaust damper1***

Below is supply air

Room supply air1***

ust air 6.6times/h air exchange

ust air 3.3times/h air exchange in night mode

Controller Min Max Night ModeΣMinΣMaxΣNight

***4802000480144040001440

***60032006006003200600

55010100 ***165700165700 ***337065551855337065551855

Total

Σ Exhaust370772102040

Σ Supply337065551855

Difference Volume between supply and exhaust

Σ Difference Volume337655185

% Percent919191

Room exhaust air setting

Σ minΣ maxΣ night

370772102040