Contact thermal resistance The influence is very large, if the contact thermal resistance is not good, then the influence on the heat dissipation will reach more than 20%. Fin height If the height of the fin is increased, the heat dissipation area will be increased, thereby increasing the heat dissipation. However, this cannot be increased blindly, and the rationality of the size must also be considered. Fin Pitch The smaller the fin pitch, it will increase the heat dissipation, but it is not as good as the smaller the pitch. Too small the pitch will bring adverse effects. So generally rely on quiet, the two tubes are 3-4mm, the four tubes are 4-5mm, and the six tubes are 5-6mm. Finned tube diameter Increased fin tube diameter will increase heat dissipation, but it also has some drawbacks. If the fin height is relatively small and the fin pitch is relatively small, then the pipe diameter should also be considered in terms of rationality. Number of fins Increasing the number of fins can also increase the heat dissipation, but it will increase the cost, so it is not very economical from an economic point of view.
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