Finned tubes are a series of tubes that have fins attached to their outsides. They are made by helically contorting strips on the tubes. They can be longitudinal, transverse, equal, level, round, oval, and parallel. This builds the contact area with the liquid which is outside the tube. With the addition of fins, there is an increase in the heat transfer rate. It additionally exchanges heat between the outside and inside the tubes.

 

Within the tubes, the liquid flows, and the outside has air or some different gas. The fundamental segments of heat exchangers in any industry are Finned Tubes. Generally, crossflow occurs here and this is because of the radial fins. In the event that you need a counter-stream, longitudinal blades are utilized.

 

There is also an open heat exchanger with the use of finned tubes for the air stream. Be that as it may, internally finned tubes can likewise be utilized in a closed heat exchanger.

 

For Industrial purposes where the outside flows need to smooth out with the tube length, the best-finned tube is the one with longitudinal fins. Then again, for air coolers, crossflow exchangers, gas streams, shell and tube heat exchangers, or turbulent streams, you can utilize transverse finned tubes. High-finned tubes are utilized to heat/cool off-gases in machinery and plant technologies. For condensing and evaporating refrigerants or when you need to control the temperature of fluids and gases, you can utilize low finned tubes. They have specific leakage paths to isolate liquids.

 

Finned Tube Heat exchangers are used when you have a low heat transfer coefficient outside of the tubes. In such cases, the additional heat transfer areas created by the fins help in guaranteeing that the necessary heat transfer rates.

 

 

Tubes that can be used in oil coolers, condensers, water radiators, and so forth., are medium-high finned tubes. Heat exchanger with finned heating surfaces, finned tube heat exchanger, offers the possibility of heat transfer between gases and fluids fundamentally space-saving and is more effective to actualize than it is conceivable with straight tubes. Finned tubes have the ability to replace bare tubes with diminished volume and cost.

 

One of the noteworthy components of finned tubes is to secure the surface region of heat exchanger tubes. Heat transfer depends on the outside area to which the fluid is exposed, the temperature difference between the liquids, and the heat transfer between the cylinder and liquids. Finned tube heat exchangers are regularly utilized in power plants as an exhaust gas heat exchanger to enhance efficiency. In modern dryers finned tube heat exchangers will be utilized for heating of air by high temp water, steam, or warm oil in enormous amounts.

 

Finned Tube Heat exchangers Advantages:

Robust development of finned tube heat exchanger that can withstand working conditions over an extensive stretch.

 

Maximum transmission quality

A high rate of condensation

Wide application and temperature range (run)

Ideal for gas-fluid or gas-vapor heat transfer.