Electronic radiator three heat transfer heat dissipation methods
The heat dissipation method of the computer radiator refers to the main method of dissipating heat from the radiator.
Time：
2024-05-27 16:47
The heat dissipation method of the computer radiator refers to the main method of dissipating heat from the radiator. In thermodynamics, heat dissipation is heat transfer, and there are three main ways of heat transfer: heat conduction, heat convection and heat radiation. The matter itself or when the matter is in contact with the matter, the transfer of energy is called heat conduction, which is the most common form of heat transfer. For example, the way in which the CPU heat sink base is in direct contact with the CPU to take away heat is heat conduction. Thermal convection refers to the heat transfer method in which the flowing fluid (gas or liquid) takes the heat away. In the heat dissipation system of the computer case, the more common is the "forced thermal convection" heat dissipation method in which the cooling fan drives the gas flow. Thermal radiation refers to the transfer of heat by ray radiation, the most common daily is solar radiation. These three heat dissipation methods are not isolated. In daily heat transfer, these three heat dissipation methods occur at the same time and work together.
In fact, any type of radiator will basically use the above three heat transfer methods at the same time, but the focus is different. For example, in a common CPU air-cooled radiator, the CPU heat sink is in direct contact with the CPU surface, and the heat from the CPU surface is transferred to the CPU heat sink through heat conduction. The air flow generated by the cooling fan takes away the heat from the surface of the CPU heat sink through thermal convection. The flow of air in the chassis also takes away the heat of the air around the CPU heat sink through thermal convection until it is outside the chassis. At the same time, all parts with high temperature will radiate heat.
The heat dissipation efficiency of the radiator is related to the thermal conductivity of the radiator material, the heat capacity of the radiator material and the heat dissipation medium, and the effective heat dissipation area of the radiator.
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