inner finned tube

It’s best to check the books in the library~ That way, you’ll get more detailed information……

May I ask what type of internal finned tube the original poster is referring to? From theoretical research and experimental testing to industrial application, many different types of internal finned tubes have emerged over time. If you are interested, you can refer to some foreign materials. From the perspective of heat transfer enhancement theory, its mechanism is similar to that of external fins; the gas stream flowing inside the tubes is subjected to heat transfer enhancement within a given space by increasing the unit heat exchange area and enhancing turbulence. It is worth noting, however, that the flow velocity of gases is generally high; therefore, when using finned tube heat exchangers, the gas pressure drop must be taken into account. This requires that the design of the finned tubes balance heat transfer enhancement with minimizing resistance losses. On the recommended images on the forum’s home page, there is a considerable amount of information related to finned heat exchangers; you can search for it and review their industrial application data over the years to make comparisons.

I’m using ribbed outer fin tubes here; I’ve never seen the type you have.

1# louqiqun I would also like to ask for information regarding internal finned tubes. Could any of you provide some manufacturers?

Could any friend provide some manufacturers? I need to purchase inner flared tubes urgently.