Environmental Heat Exchange Of Radiator

After the heat is transferred to the top of the radiator, it needs to be dissipated to the surrounding environment as soon as possible. For air-cooled radiators, it is necessary to exchange heat with the surrounding air. At this point, heat is transferred between two different media, following the formula Q=α X A X Δ T, where Δ T is the temperature difference between the two media, that is, the temperature difference between the radiator and the surrounding air; And α is the thermal conductivity of the fluid, which is a fixed value after the material of the heat sink and the composition of the air are determined; The most important factor A is the contact area between the heat sink and the air. Under other constant conditions, the volume of the heat sink is generally limited, and the space inside the chassis is limited. If it is too large, it will increase the difficulty of installation. However, changing the shape of the heat sink to increase its contact area with the air and heat exchange area is an effective way to improve heat dissipation efficiency. To achieve this, the surface area is generally increased by using finned design combined with surface roughening or threading methods.