One way: heat conduction
"Cooling Fan Manufacturer" thermal convection and thermal radiation. When the substance itself or the substance in contact with the material, the transfer of energy is called the heat conduction, which is the most common form of heat transfer. For example, CPU heat sink base in direct contact with the CPU heat away way belongs to the heat conduction.
Second way: thermal radiation
"Cooling Fan Manufacturer" refers to rely on thermal radiation ray radiation heat transfer, the most common is the daily solar radiation.
Three ways: convection
"Cooling Fan Manufacturer" refers to a thermal convection flow of fluid (gas or liquid) to take the tropical heat transfer mode, the computer chassis cooling system is more common cooling fan driven by the flow of gas, "forced convection" cooling mode . These three cooling methods are not isolated, in the daily heat transfer, the three cooling methods are simultaneously played the role.