Applied finned tubes are seamless pipes that come with fins in different materials. You will find that finned tubes come in a wide variety of styles. Usually, an individually finned tube exchanger consists of helical, serrated, wavy or slotted fins that are attached to the tube by way of welding, soldering, tension winding or brazing.
Finned tubes are usually used in heat exchangers. But you may wonder what these finned tubes are and why are they used over normal tubes in these exchangers. Here’s everything you need to know about finned tubes.
What Are Finned Tubes?
Finned tubes are elongated flat tubes that are made of aluminum cladded carbon steel and are provided with brazed aluminum fins. These tubes are used in a series in heat exchangers. The advantage they offer over ordinary tubes is that the fins offer greater contact with the liquid outside. This quickens the exchange of heat between the liquid inside the tube and the one outside it. With a normal tube, the rate of exchange of heat would be much slower.
Finned tubes are available in different shapes. They are available as oval tubes, round tubes, and flat tubes.
What Are Their Uses?
Finned tubes are particularly useful in the case of air heat exchangers. In an air heat exchanger, the heat transfer is to take place between a liquid and gas. With the heat coefficient of the airside being lower, a finned tube can be exceptionally helpful. A finned tube increases the surface area and thus helps in faster heat transfer between the components.
Example of Fin Tube Heat Exchangers
Fin tube heat exchangers are used in household appliances and industrial heat exchangers. Fin tube heat exchangers are used in air conditioners and car radiators. The purpose of using a finned tube in an air conditioner is to cool the air passing through it. In a car radiator, it cools the liquid in the tube with the air passing through in crossflow.
Advantages of Using Finned Tubes
Finned tubes offer several advantages:
Increase Heat Transfer Rate
The fins in a finned tube increase the surface area of contact. This allows it to quicken the heat transfer rate.
Improve Heat Transfer Coefficient
In an ordinary tube, the outer surface area is just about the same or slightly different from the inner surface area. In such a case, the fluid with the lowest heat transfer coefficient will drive the entire heat transfer rate. A finned tube increases the surface area significantly. This is particularly helpful when the heat transfer coefficient of the fluid inside the tube is greater than that of the fluid outside the tube.
Reduces Size of the Equipment and Makes Project Cost Efficient
Finned tubes can significantly increase the surface area. The use of a finned tube can cut down the number of tubes used in an application. This results in a considerable reduction in the size of the equipment. In the long run, this can lead to a decrease in the cost of the project.
If you are looking for high-quality finned tubes, you should consult the experts at Anand Seamless Tubes – leading finned tube manufacturers in Ahmedabad!
Fin tubes can be recognized to have small fins on its outside surface making everyone detect them easily. These fins are not for show, they act as a transfer mechanism and filter, flowing the heat from outside to inside and vice versa. You can never fix the rate of the heat transfer by merely looking at the tube as it depends upon three factors-
The coefficient of heat transfer between the fluids and walls of the fin tubes
The difference of temperature between the fluids
The surface on which the fluids are exposed
Types Of Fin Tubes
There is a wide range of fin tubes that manufacturers of fin tubes produce. These tubes are used in various industries, inside the heat exchangers. They are used to transfer heat or cold to air, water or chemicals. To name a few industries, these tubes can greatly fit in the petrochemical, power generation, petroleum among many other industries.
When the tubes are manufactured, they go through a corrosion protective process to strengthen it against the failure caused due to corrosion! Some fin tube types are:
1. ‘L’ Fin Tubes
They can work at a maximum temperature of 150 degrees Celsius
It has an acceptable level of atmospheric corrosion resistance
It is made of aluminium and copper
Offers a poor mechanical resistance
2. ‘LL’ Fin Tubes
They can work at a maximum temperature of 180 degrees Celsius
It has an acceptable level of atmospheric corrosion resistance
It is made up of aluminium and copper
Offers a poor mechanical resistance
3. ‘KL’ Fin Tubes
They can work at a maximum temperature of 260 degrees Celsius
They have an acceptable level of atmospheric corrosion resistance
They are made up of aluminium and copper
Offers acceptable mechanical resistance
4. ‘G’ Fin Tubes
They can work at a maximum temperature of 400 degrees Celsius
They have a poor level of atmospheric corrosion resistance
They are made up of carbon, aluminium and copper
Offers acceptable mechanical resistance
5. Extruded Fin Tubes
They can work at a maximum temperature of 285 degrees Celsius
They have an excellent level of atmospheric corrosion resistance
They are purely made up of aluminium
Offers excellent mechanical resistance
Why Companies Choose Extruded Fin Tubes?
Most of the industries choose extruded fin tubes as they offer a better level of resistance against corrosion. This helps them to be highly durable thus letting you have a strong heat exchanger. Along with this, they can withstand mechanical stress, thus provide flawless results. It is generally used with industries that do not require the material to reach a very high temperature.
Get Them From the Leading Extruded Finned Tube Suppliers in India!
Our extruded fin tubes are manufactured with great precision in the most advanced fining machine. We also supply our tubes with utmost care and professionalism with our special process to assure they adhere to the industry standards and required safety measures. At Anand Seamless Ltd, we take great pride in providing our clients with the best quality at a great deal. Call us on +91-9099996851 or drop us a mail on inquiry@anandseamless.com to get an instant quote! Get in touch today.
