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In a ventilation system how to calculate the area of the duct?

Update Time :2015-07-25The view :445

456棋牌 Construction drawings in plan view with a scale to measure out only a few meters duct, how to calculate the number of square meters of duct?

Full system fixed calculation rule states:

Duct fabrication and installation of construction shown in different sizes according to expand the area of computing, without deduction inspection hole, measuring hole outlet, suction outlet and other occupied area.

456棋牌 Tube F = π × D × L

Where F-- round duct expansion area (in m2 units);

456棋牌         D-- round duct diameter;

        L-- pipe centerline length.

Illustrated rectangular duct perimeter multiplied by the length of the pipe centerline calculation.

Duct area, calculation rules and the whole system of local Quota Quota is the same.


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