Duct Size Calculator Excel Metric

Duct sizing how to size ductwork.

Duct size calculator excel metric.

These charts hold a lot of information. Include fittings in the duct tel enter either. To size the ducts you re going to need a duct sizing chart. If you don t have one you can find them in the following links.

This duct size calculator from mcquay is the best software for design the air duct in hvac applications. Rectangular duct si units circular duct si units rectangular duct us units circular duct us units. Maximum size of duct or pipe through steel joists k series joists and maximum size of ducts and pipes. Flex duct 05 on most metal duct calculator round metal pipe 06 on most metal duct calculators field duct sizing chart rectangular sheet metal duct 07 on most metal duct calculators duct size duct height net inside dimension in inches round duct size estimate.

For the more duct formulas download this all hvac calculator excel sheet in this sheet you will find all calculations of central air conditioning. With the entire ductsox system acting as a diffuser air dispersion and distribution is combined allowing simple and efficient layouts that typically cost 20 80 less and outperform comparable metal duct systems. Friction rate velocity friction rate. Not every application is a straight line of ductsox.

Enter duct airflow cfm duct velocity fpm duct length and the number of bends. Read round duct diameter inches and friction loss per 100 of duct inches of water. Convert rectangular duct to round equivalent. Duct velocity calculate velocities in circular and rectangular ducts imperial and si units online calculator.

In wg duct tel. To accommodate this we offer a variety of standard fittings. Enter an internal duct size this must be limited to a maximum aspect ratio of 5 1 for the results to be valid the resulting vel ocity and pressure drop per unit length are displayed in the blue box. This hvac duct sizing calculator is very simple and it calculates the duct friction loss value and air velocity inside the duct.

Sheet metal duct friction loss calculator. You can obtain these from ductwork manufacturers or from industry bodies such as cibse and ashrae. Link 1 and link 2. Convert diameter to rectangular equivalent.

This calculation program on excel makes it possible to dimension and carry out the calculation of the pressure losses on the ductworks and air distribution systems.