Velocidad del aire, Sistemas de ventilación
Velocidad del aire, Sistemas de ventilación
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 )
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
Discharge Systems
In dust control systems, one of the essential parts that are not important to investors are the discharge systems. This is often due to the fact that the important function it has is unknown, in addition to being the lower part and the least striking it is less relevant.
¿Tiempo de Vida de los Filtros de un Colector de Polvos?
La vida útil de los filtros en los colectores de polvo, ya sean de bolsas o cartuchos, puede variar considerablemente y se define desde los primeros días de operación del sistema. Un ajuste preciso y correcto es clave para maximizar su desempeño y prolongar su duración. Los sistemas modernos de colección de polvos incorporan tecnología avanzada que no solo garantiza una mejor calidad del aire, sino que también optimiza el consumo energético y reduce de forma significativa los costos de operación y reemplazo de filtros, generando un mayor retorno de inversión
Benefits of Preventive Maintenance
Have you ever wondered how much money preventive maintenance on your equipment or machinery saves you? It is undoubtedly one of the most frequent questions we ask ourselves while making budgets for this area in companies.
