Formula To Convert Rectangular Duct To Round Duct

The formula is generic and any unit can be used.

Formula to convert rectangular duct to round duct.

This can be found by multiplying the two adjacent sides of the rectangular duct. When a designer sees rectangular duct on a drawing they should convert it to an equivalent round size if possible. Rectangular to equivalent circular duct calculator. Convert round duct size to rectangular duct size for equivelant airflow.

D e 1 30 300 mm 500 mm 0 625 300 mm 500 mm 0 25 420 mm. 2001 ashrae fundamentals p. Other hart cooley mobile tools. This is a handy tool when deciding what size duct you want to use for your application.

Multiply this number by 3 14 pi to get the area of the round duct in square inches for example 16 x 3 14 50 24 square inches. The equivalent diameter of a 300 mm x 500 mm rectangular duct can be calculated as. Rectangular to round conversion de 1 30 ab 0 625 a b 0 250 a length of one side of rectangular duct inch b length of adjacent side of rectangular duct inch de circular equivalent of rectangular duct for equal friction and capacity inch source. Friction loss calculator for flexible ducts.

Step 5 select a size of square duct that has the same area. The calculator below is based on formula 1. How to calculate duct sheet area duct quantity rectangle duct square duct round duct flat oval duct amazon. That will at least give the duct.

Https amzn to 39pgvjc 1 wireless refrigeration. Approaches the efficiency of round duct. If it cannot be converted to round because of restrictions it should be converted to an equivalent flat oval size. An aspect ratio of 1 is round duct.