Ductulator

Circular

Airflow: Cfm m3/hr  m3/hr

Velocity: m/s Fpm  Fpm




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Resulting diameter:

Half Round

Airflow: Cfm m3/hr  m3/hr

Velocity: m/s Fpm  Fpm




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Resulting diameter: .

Quarter Round

Airflow: Cfm m3/hr  m3/hr

Velocity: m/s Fpm  Fpm




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Resulting diameter:

Elliptical

Airflow: Cfm m3/hr  m3/hr

Velocity: m/s Fpm  Fpm




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Resulting diameter:

Linear duct

ΔP=α 21.89x10^-3L*Q^1.98/∅^4.86

L: Longitude   Q: Airflow   α= 9.8   ∅: Diameter

Shape: Circular Half Round 1/4 de círculo

Longitude(L): m Ft  Ft

Airflow(Q): Cfm m3/hr  m3/hr

Velocity(V): m/s Fpm  Fpm

Quantity:


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Calculate pressure drop:

Elbows

ΔP=C (P V²)/2

C= Co Kθ (P) Air density= 1.204 V: Velocity

θ	45°	90°
Kθ	0.6	1
Co	0.8	0.9
Number of pieces	5	4

Velocity(V): m/s Fpm  Fpm

Angle: 45 90 Quantity:


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Pressure drop:

Reduction

ΔP=C (P V²)/2

C: Loss Coefficient (P) Air density= 1.204 V: Velocity

Diameter 1(D1): in cm  cm

Diameter 2(D2): in cm  cm

Velocity(V): m/s Fpm  Fpm

Quantity:


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Pressure drop:

Fitting

ΔP=C (P V²)/2

C: Loss Coefficient (P) Air density= 1.204 V: Velocity

Main Airflow (MA): Cfm m3/hr  m3/hr

Derived airflow (DA): Cfm m3/hr  m3/hr

Main Velocity (MV): m/s Fpm  Fpm

Derived Velocity (DV): m/s Fpm  Fpm

Angle: 30 45 60 90 Quantity:


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Pressure drop:

“Y" fitting

ΔP=C (P V²)/2

C: Loss Coefficient (P) Air density= 1.204 V: Velocity

Main Velocity (MV): m/s Fpm  Fpm

Derived Velocity (DV): m/s Fpm  Fpm

Quantity:


Calculate Add




Pressure drop:

Sum MA

	Pieces	Shape	MA (Pa)	Total(Pa)	MA (inCa)	Total (inCa)

Total:

Simulation

Pressure: 100pa 150pa Diffusion 4 y 8 6 4 6 y 8 High: 5m 8m 10m Gradient: 0t 5t 10t




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