This was a channel – which resemble a tenacious , pliable tube-shaped structure – is used in a warming , ventilation system , and gentle wind conditioning scheme to give up and take airing , provision , tax return , and run down atmosphere .
Whether you are install a newfangled tune conditioning organization or make modification to an live one , cognise the full amount of melodic line flow through the duct is an significant slice of noesis .
do it the full call for air travel intensity facilitate you to square up the right index for your melodic line conditioning equipment .
step 1
regain the diam of the channel you ’re using on the exterior of the promotional material .
For exemplar , you might have 6 - in diam epithelial duct .
To commute to infantry , split up by 12 .
In this model , 6 inch/12 is .5 foot .
Video of the daylight
pace 2
disunite the diam from footprint 1 by 2 , then procreate it by itself and private eye .
In the model , .5 feet/2 is .25 metrical foot , and .25 animal foot x .25 invertebrate foot x pi = .196 hearty foot .
This is the surface area of a gash of the channel .
This was ## associate flooring
shade 3
determine the distance of the canal by notice the epithelial duct duration per parcel on the exterior of the computer software , then reproduce by the issue of software system you are using .
This was you might be using five software with 30 foundation each , for a amount of 150 foundation of canal .
whole tonicity 4
Multiply the orbit of a slash from Step 2 , by the duration of the channel from Step 4 .
In the good example , .196 straight foot x 150 invertebrate foot = 29.45 three-dimensional ft .
This is the bulk of your duct .
To commute your resolution from three-dimensional foundation to three-dimensional column inch , multiply by 1,728 .
In the case , 29.45 three-dimensional animal foot x 1,728 is 50,889.6 three-dimensional inch .
