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.
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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:
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- 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!
Reach Out to Us For Advice on the Right Products!
Anand Seamless Ltd offers a wide range of products including finned tubes, fin tube heat exchangers, etc. From high-quality seamless tubes to hydraulic tubes and from seamless pipes to mechanical tubes, we have a huge range of products. To know more you can call us at +91-9099996851 or send your queries to inquiry@anandseamless.com.
Finned tubes are the main components of heat exchangers. They are a series of tubes where fins have been added on the outside to increase the contact area with the outside fluid, to exchange heat and between the fluid inside the tube and the fluid outside the tube. Finned tubes are elongated aluminium cladded carbon steel flat tubes with brazed aluminium fins.
Multiple types and shapes of finned tubes exist including round tubes, oval tubes, or flat tubes. Flat tubes, made of aluminium clad carbon steel tubes with aluminium brazed fins, so-called SRC©, are the state of the art for power plant air cooled condensers.
The excellent corrosion and freeze resistant SRC® finned tubes are manufactured at SPG Dry Cooling’s fully owned state-of-the-art factories.
Discover the production process of our SRC® tubes:
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