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Ventilation fans are highly functional use as a working system that provides transfer of gas or air by pressurizing it instead of liquid to pumps. The necessity of making air or gas in industrial systems to perform the pressing and suction functions of these systems and the work of living care such as homes has a working priority that provides ventilation of clean air use and increases the quality of life.
The fan creates a pressure difference and provides the flow of clean air, thus increasing the quality of life of people in terms of human health. The blades, which are the moving elements of the ventilation fan, undertake the process of providing kinetic and static energy to the air as they do work on it. The ratio of this kinetic and static energy provided to the air varies depending on the features of the fan.
Ventilation fan models, which differ depending on the area of use, are listed as follows:
The working system of suction fans is based on working by reducing the pressure of the environment in which they work. Suction fans are required in areas that need to work with a mixture of indoor and outdoor air during air conditioning. Thanks to these fans, the air in the air-conditioned environment rotates appropriately. In addition, it can be stated that in suction fan systems that work by creating pressure, they work with a smaller flow rate than discharge fans.
The exhaust fan is found in systems that operate with a mixture of internal and external air but do not use a suction fan. In addition, it allows the return air to be exhausted as well as the air taken in. In these ventilation systems, the discharge fan should be selected to meet the static pressure that occurs in the system when it is not possible to take in air from outside. In environments where external air can be taken in, this exhaust fan sends a smaller amount of return air than the air taken in, creating extra pressure inside the space.
The pressure fan is used in conjunction with an air duct, which creates additional pressure within the duct and causes the air to move. These types of fans provide significant advantages in their areas of use.
When selecting a fan in an air distribution system in a designated area to allow fresh air to enter and provide air flow at least as good as the outside environment:
Fans are generally classified into two types, axial and radial, depending on the direction of air flow from the impeller.
Axial Type Fans: Axial type fans create air pressure difference. The movement of the resulting air is in the axial direction. Axial type fans are divided into three sections:
Radial Type Fans: In radial type fan systems, the air movement that draws attention by creating a pressure difference is not in the axial direction but in the direction of the centrifugal force. This fan system is divided into four sections:
It should be noted that ventilation fans are not devices that can operate on their own, and that they operate as part of an air duct or process system. For example, a fan used to air condition a building must prevent pressure losses in the critical circuit and move the air to the desired location. The situation is similar in a flue gas filtering system for the inlet and outlet of clean air in a factory. The fan used must correctly compensate for pressure losses in the filter, ducts, exchangers, and all other elements, if any.
In the system, the operating point of the fan must be determined by drawing the characteristic curves and fan characteristic curves together. In addition, the dynamic behavior in the system and the control strategies to be applied in accordance with the form and shape of the business can be examined after drawing these curves.
Fan literally means cleaner, so it is used to disperse hot or cold air in a balanced way. Other commonly used names for these systems are fan blade, propeller, ventilation device and fan. These systems are functional devices that clean the air and increase the quality of life of people in the environment with clean air and are powered by electricity. Since these fans have a moving propeller, the air can easily work on this propeller.
Ventilation fans are a system that is actively used in many areas and makes life easier, as they allow the unwanted hot, cold or dirty air in the environment to be thrown out of the closed area. Thanks to this system, the dirty air passing through the ventilation duct is replaced with clean air and drawn back into the environment. Thus, while the unwanted dirty, hot or cold air is thrown out, clean air is taken in. Ventilation fans are generally used in the inlet section of the ventilation duct. The areas where ventilation fans are frequently used are areas where it is difficult to get clean air but where people spend a lot of time, such as hospitals, shopping malls and parking lots.
Ventilation systems come in different types and models depending on the area they are used. When choosing from ventilation systems, where there are many different models on the market, it is important to know your needs first and to be meticulous in choosing a company accordingly. ERF Group, which uses advanced technological opportunities in qualified and ventilation systems, is a professional company where you can easily find the ventilation fan systems with high-quality standards you are looking for.
With its long years of experience, ERF Group analyzes your requests and needs in the most accurate way and then takes these needs into consideration in system production. You can reach us immediately from the contact numbers on our website to experience the difference of ERF Group, which has managed to make its name known in the sector with its quality service and user-oriented studies, and to experience durable and high-quality production designed for long-term use in ventilation systems.
