Cooling Fans & Blower Fans
Cooling fans and blowers are essential to systems that produce a significant amount of heat like computers and other electronic components. Different systems are engineered to work with specific types of fans. Cooling fans come in all shapes and sizes as well as voltage, airflow, and case size. Some are even weather resistant and can stand up against the elements. It's important to know the specific type of fan your CPU / electronic component requires as fans and blowers are not universal. Be sure to reference the fan part number before you buy a replacement. Installing the wrong fan type can cause more harm to your computer/system.
Electronic Components generate the most heat in your typical system. It's also the most temperature-sensitive. That's why fans are necessary to aid in cooling the system. Without them, machines would overheat and cease functioning. The power supply also increases the temperature of a system. So although the components generate the most heat, the power supply also makes it necessary to have a cooling system in place to keep temperatures low and keep it from overheating. Without a way to maintain its temperature, a system won't last.
Cooling fans come in different makes and models, and are engineered specifically for the systems they support. Axial fans, for example, are fans designed to work with systems that have low back pressure and require less noise. These fans are quite common and are typically the most economical cooling solution. Axial fans are also referred to as box fans and are normally used in computers. Blowers, on the other hand, are designed to work with systems that have high impedance (i.e. back pressure). Blowers produce a more concentrated airflow in a system. As a result, they tend to generate a significant amount of noise.