Duct Sizing Calculation & Duct Designing Calculation I Duct Sizer & Auto CAD (Hindi Version)

First measurement of all dimensions are done with AUTOCAD software, drawings are made (front view and top view). It is shown In the video, the frictional pressure drop per unit length of the duct is maintained constant throughout the duct system.
Knowing the air flow rate and the velocity in the main duct, the
size and friction loss are determined from the friction
chart. The remaining ducts are then sized maintaining
the friction loss per unit length at this value for their
respective air-flow rates.
HVAC Duct & Pipe Sizing Software Link :
www.daikinappli...