-A chart for determining the air resistance in sections of straight circular ducts made of sheet, in function of diameter and speed of air passage through the duct.
-Table of equivalences between circular and rectangular duct based on the Huesbsher equation.
-Load loss of accessories.
-Similarity rules for fans.
Chart for determining the air resistance in circular ducts made of sheet
Calculation of the equivalent hydraulic diameter:
Equivalence table between circular and rectangular duct diameter to calculate the load loss
Load loss calculation in accessories:
Calculation of the load loss caused by an accessory in an installation with fans.