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.

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. This can be found by multiplying the two adjacent sides of the rectangular duct. The calculator below is based on formula 1. Step 5 select a size of square duct that has the same area.

How to calculate duct sheet area duct quantity rectangle duct square duct round duct flat oval duct amazon. For rectangular ducts a width of duct side inches b height of other duct side inches equivalent round duct size for a rectangular duct equivalent round duct size for a rectangular duct can be expressed as deq 1 3 x a x b 0 625 a b 0 25 where deq equivalent diameter a one dimension of rectangular duct inches. An aspect ratio of 1 is round duct. When a designer sees rectangular duct on a drawing they should convert it to an equivalent round size if possible.

That will at least give the duct. 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. This is a handy tool when deciding what size duct you want to use for your application. Approaches the efficiency of round duct.

Friction loss calculator for flexible ducts. Convert round duct size to rectangular duct size for equivelant airflow. Rectangular to equivalent circular duct calculator. The equivalent diameter of a 300 mm x 500 mm rectangular duct can be calculated as.

Other hart cooley mobile tools. Https amzn to 39pgvjc 1 wireless refrigeration. Equivalent duct calculator round vs rectangular. 2001 ashrae fundamentals p.