Fins are also called fins and fins because they are similar to wings and fins. They are effective ways to increase the heat transfer area. The so-called fin is the extended surface attached to the foundation surface. [1] Such as condenser, radiator and air heater of refrigeration device. The common fin shapes include trapezoidal fin, triangular fin and rectangular fin. The factors that affect the heat transfer of the fin include the height of the fin, the spacing between the ribs, the temperature of the fin root, and the thermophysical parameters of the fin.
Increase radiation heat transfer and convection heat transfer.
1. Combined heat transfer (including convection heat transfer and radiation heat transfer);
2. The heat flow is constantly changing along the direction of heat conduction.
Computer CPU heat sink In engineering, the economical fin efficiency is about 0.64-0.76.
Fins have a good effect in enhancing heat dissipation, and their simple structure has been widely used in civil and industrial applications, such as radiators, automobile engine heat dissipation, internal and external units of air conditioners, computer radiators, and air preheaters for power station boilers.
radiator
Rotary air preheater for utility boiler
