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1
Dust & Gas
Stage 1
2
Hood
Stage 2
3
Ductwork
Stage 3
4
Treatment
Stage 4
5
Collector
Stage 5
6
Gas Cooling
Stage 6
7
Fan
Stage 7
8
Safety & Limits
Stage 8
→
Detailed design
Stage 2 — Hood Design
Hood type
Enclosing
Exterior — lateral
Exterior — downdraft
Exterior — updraft
Canopy
Receiving
Slot
Booth
Open / face area
m²
Safety factor SF (1.0–2.0)
Flow & static pressure
Control velocity V_c
—
m/s
applied to this hood
Hood flow Q_h
—
m³/min
60·V·A·SF
Hood static loss
—
Pa
(1+K)·ρ·V²/2
Implied capture area
—
m²
Q / (60·V_c·SF)
← Stage 1
Stage 3 →