The higher the fins of the finned tube, the better the heat dissipation
1. When the heat transfer area of the fins of the finned tube radiator is doubled, the heat transfer coefficient cannot be doubled, but a discount, generally (0.9—0.7), and the more the fins are, the more The higher the discount value is, the larger the discount value is, and it even falls below (0.5). This shows that the higher the fins, the lower the efficiency of the fins, and the economy of adding fins decreases.

2. If the fins of the finned tube radiator are too high and too dense, it is easy to cause dust accumulation problems, and it is difficult to clean the dust.

3. The fins of the finned tube radiator are too high and too dense, which will increase the difficulty of the process and increase the processing cost.
For a 1-meter-long tube, set the total heat transfer area after adding the finned tube radiator fins as A, and the area of the light pipe without adding fins as A0, then A/A0 is the multiple of the area expansion, It is called “wing ratio”. The appropriate fining ratio to choose depends on the application conditions and optimal design. Generally, the finned tube used in energy engineering has a finning ratio between 5 and 12, while in the air conditioning and air cooling industries, its finning ratio is between 15 and 22.