2022.02.01
Educational Materials

Fans are an Irreplaceable Aid to Heat Dissipation

Share:

風扇

 

In the history of electronic cooling, the fan is still an active cooling component that cannot be superseded and is a so-called necessary evil. The entry barrier for fans is not high, but it is not easy to do well, with an estimated volume of around 8 billion units/year produced worldwide. A fan is a rotating mechanism that converts electrical energy into rotational kinetic energy, which is transferred into the fluid through the direct action of the fan blades to generate airflow and achieve forced convection and heat transfer.


In terms of application, we can broadly divide them into two categories: axial and centrifugal. The main difference between the two is that in the former the direction of flow is parallel to the direction of the rotating blade axis, whereas in the latter the direction of flow is perpendicular to the rotating blade axis. Axial fans are widely used for cooling tools such as CPU cooling fans, power supply cooling fans, projector cooling fans and many more. Thus, the performance of a fan is the most basic factor in determining the performance of thermal dissipation, and the performance of a fan is dependent on many parameters, such as airflow, static pressure, noise, reliability, etc. Therefore, when selecting a fan, it is important to know the correct and complete performance curve to determine if the fan's operating area meets the system's needs and provides a high-quality source of airflow. Conversely, if a complete performance curve and impedance curve is not available, it is not possible to determine airflow, air pressure and whether the fan's area of instability is being avoided.

 


林唯耕教授

Author

Professor Wei-Keng Lin

Education|Ph.D., University of Maryland

Occupation|Professor, National Tsing Hua University 

Specialty|Electronic package heat dissipation, Heat pipe, Loop heat pipes(CPL,LHP,PHP), Energy-saving design, Solar heat storage and cooling, Heat flow system, Cooling of electronic components, Two-phase flow, Heat transfer elements of artificial satellite and high-altitude flying object

Compare 0 Product Inquiry 0
Inquiry Cart

Your cart totals 0 products

Compare

Your comparison totals 0 products

In accordance with the European Union’s General Data Protection Regulation (GDPR), we are committed to safeguarding and ensuring your control over your personal data. By clicking “Accept All” you are permitting us to use cookies to enhance your browsing experience, assist us in analyzing website performance and usage, and deliver relevant marketing content. You can manage your cookie settings below. By clicking “Confirm” you are agreeing to the current settings.

Manage Cookies

Privacy preferences

In accordance with the European Union’s General Data Protection Regulation (GDPR), we are committed to safeguarding and ensuring your control over your personal data. By clicking “Accept All” you are permitting us to use cookies to enhance your browsing experience, assist us in analyzing website performance and usage, and deliver relevant marketing content. You can manage your cookie settings below. By clicking “Confirm” you are agreeing to the current settings.

Privacy Policy

Manage preferences

Necessary cookie

Always on

This website relies on the use of cookies, which cannot be disabled while browsing. These cookies are typically set based on the actions you take while in the system, such as adjusting privacy settings, logging in or filling out forms. You can go into your browser settings to block or alert you about these cookies, but this may cause some website functions not to work.