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Duct Static Pressure Calculation: Static Pressure Explained & Step-by-Step Calculation Guide
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In this video, I explain about static pressure in air conditioning and ventilation duct. I provide multiple examples to show how to calculate the friction loss in duct, the dynamic loss of duct fittings and the pressure drop in various equipment including grille and damper.
0:00 Introduction
0:17 What is Static Pressure
1:46 Components Lead to Pressure Loss
3:59 How to Calculate Duct Friction Loss
7:08 Darcy Equation
11:13 How to Calculate Fitting Dynamic Loss
11:35 Duct Transition (Exhaust/Return)
14:41 Duct Elbow
16:27 Tee Branch
18:20 Duct Transition (Supply)
19:09 Total Friction & Fitting Loss
20:21 Equipment Pressure Drop
22:08 Exhaust Grille
23:32 External Louver
24:26 Non-Return Damper
25:26 Total Pressure Loss & Fan ESP
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