For the fin of finned tube the more the better, or the higher the better?
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For the fin of finned tube, the more the better, or the higher the better?
1. When the heat transfer area of finned tube is doubled, the heat transfer coefficient of finned tube can not be doubled, but a discount, usually (0.9-0.7). The higher the fin, the greater the discount value, even lower than (0.5). This shows that the higher the fin is, the lower the fin efficiency is, and the economic increase of the fin will decrease.
2. if the fins are too high and too dense, it is easy to cause ash accumulation and difficult to remove dust.
3. the fins are too high and too dense, which will increase the technological difficulty and improve the processing cost. |
Welded Fin Tube
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