The Effects On Airflow Of Wire Fan Guards One of the most efficient ways to dissipate heat generated by electronic components is forced convection cooling. Axial cooling fans provide forced cooling in an easy-to-integrate package. Once a decision has been made to use forced (fan) cooling, several design characteristics must be considered before fan selection. Before fan selection, the airflow required to dissipate the heat generated must be determined. For this to be able to take place, the density of the air and the amount of heat to be dissipated must be known. Several simple calculations can help you determine these details.
After the airflow has been determined, the amount of resistance can be found. Airflow resistance is referred to as system impedance or static pressure as a function of flow in CFM. It is possible to specify a fan, once the volume of air and the static pressure of the system to be cooled are known. A key principle in fan selection is that any given fan can only deliver one flow at one pressure in a given application. Fan guards, sometimes referred to as finger guards, fan covers, or fan filters, can be integrated for purposes of safety, and as a means to reduce external contaminants from entering the enclosure. Fan guards can have a direct and extremely significant effect upon the volume of airflow within a system, as well as the total fan noise, depending upon the style of fan guard selected. Two basic styles of fan guards, wire and punched, represent the majority of users in the market. The wire fan guard is typically manufactured from 1.6 – 2 mm in diameter. Depending upon the size of the guard, there are between 2 and 15 concentric circular rings, with 2-4 mounting legs. The round wire creates the least amount of airflow resistance of all the fan guard styles. Typical wire fan guards create a blockage of between 5 - 7% when the center motor hub is taken into consideration. The noted blockage, or static pressure, will see a specific drop in airflow when the wire fan guard is introduced to the application. These results will vary, depending upon the strength of the motor and its ability to overcome the system impedance. Throughout several studies that were conducted, it was discovered that wire fan guards consistently provide the best guard performance data as it relates to airflow and noise. In essence, this means that wire fan guards are the optimal choice to reduce white noise, guard noise, and general noise from the fan when in use. Typically, it is the wish of the end-user that the fan makes the least amount of noise possible, and that is where wire fan guards have proved to be most effective. It can drastically reduce the noise produced by the fan, its various components, and accessories, while also not hindering the ability of the fan to cool the general area that it is supposed to. The purpose of the cooling fan is to provide the least amount of air movement required to reduce the system-generated heat and ensure that system components are maintained at approved operational temperature values. It is quite simply understandable that by using the proper wire fan guard, systems can take advantage of reduced energy consumption and noise for the end-user. Wire fan guards are inexpensive items that carry a range of benefits for the end-user and, as such, it is recommended by professionals in the heating and cooling industry that all fans should come with
a wire fan guard as not only are they a health and safety feature, but they also significantly contribute to the efficacy of the fan in general.
About Us GardTec Online prides itself on the fan guard selection that it can offer its clients. The company was established in 1987, which means that they have a wealth of experience and knowledge in the fan accessory goods industry. They have become world leaders in the manufacturing of fan guards and other accessories. With a unique, client-focused customer service approach, GardTec Online is expanding its global client base, providing top-quality products and affordable shipping. Their dependable solutions are suitable for either commercial or home use. For more information on GardTec online and their selection of plastic and wire fan guards, please visit https://gardteconline.com.