Velocidad del aire, Sistemas de ventilación

Velocidad del aire, sistemas de ventilación, colectores de polvo

Velocidad del aire, Sistemas de ventilación

BLOG

Is it important to measure air speed?

Before carrying out a project to control dust, fumes, mists or gases in the company, you must collect as much information and data that will allow you to carry out the correct and necessary calculations, one of the most important is that of the Air Velocity or CFM.

What is air velocity?

The airspeed, is generally defined as the movement that occurs in a horizontal direction to the Earth, this is not a mass of gas at rest, on the contrary, it is a very thin veil with fluidity and completely variable, with various thermal contrasts, this massive displacement of large masses of volumes of air with defined speeds and direction is called wind. 

The airspeed, is one of the main data that we take into account for the design and manufacture of a dust collection system. Defining the capture speed will allow us to know the air flow, the diameter of the ducts, the collection area, the fan capacity, among other factors that will help maintain the speed of the air mass.

What is the air mass?

This is the most important consideration for the application in drying, combustion and general ventilation processes, which need a certain amount of air mass, these are usually measured in lbm/𝑓𝑡 ³ or Kg m/m³.

What is CFM?

The volumetric flow rate, hereafter called “volume“ (𝑣), is defined as the amount of air that passes a given place per unit of time. It is related to the average velocity and cross-sectional area of the duct given by the equation:

𝑄=𝑉𝐴
where:

Q = volumetric flow rate, cfm

V = mean velocity, fpm

A = área de la sección transversal, (〖𝑓𝑡〗^2 )

Velocidad del aire, sistemas de ventilación, colectores de polvo

For instance; The capacity tables of industrial fan manufacturers are published in ACFM (Actual Cubic Feet Per Minute), the required air mass must be converted from SCFM (Standard Cubic Feet Per Minute) to ACFM (Actual Cubic Feet Per Minute). The transport speed in the system can be defined once we define the ACFM air volume.

The design of a dust collection system, fumes or ventilation system, part of the work of analyzing and calculating in real terms the volume or velocity of the air that must move and; thus being able to size and select the necessary components of the system to carry out the work, such as ducts, hoods, fan, etc.

DYNA FLO® Tips: 

  • Before investing in an industrial ventilation system, consult an expert in the field, give us a call.

Collector Types 

Velocidad del aire, sistemas de ventilación

Velocidad del aire

Other articles of interest

Tipos de Gases en las Industrias y la ventilación

En el sector Industrial de todo el mundo, existen procesos en los que se requiere el uso de algún tipo de gas de manufactura, ya sea que se dediquen a la metalurgia, alimenticio, salud, agro, etc. Su uso depende en gran medida, de las aplicaciones y de la función que cumple durante el proceso de producción.

Read more »
diamante de fuego, empresas ventilación, empresas de ventilación industrial

Rule 704 – Fire Diamond

The National Fire Protection Association or NFPA, is an international voluntary institution, which aims to standardize action protocols in Fire Protection and Prevention (National Fire Codes), this entity promotes good practices in the fire fighting and prevention.

Read more »
filtro tipo bolsa, filtros para colectores, mantenimiento colectores, reparación de colectores, colectores industriales, colector de polvo, ventilación industrial, ventilación en empresas, filtro bolsa

How to select a bag type filter?

The performance of the bags or sleeves depends closely on the materials with which it is manufactured, as well as other factors. Choosing the right filter for a Dust Collector is very important, since the efficiency of capturing the particles depends on this and that the equipment has optimal performance during its operation.

Read more »