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Elliptical Fin Tube
Table of Content
Elliptical finned tubes are made using an elliptical seamless base tube, wrapped with aluminum or copper fin strips. These fins are tightly spiraled around the tube under tension, ensuring a secure fit.
There are various types of elliptical finned tubes, such as oval-rectangular, oval-oval, and oval-circular designs. These tubes are popular due to their superior heat exchange performance compared to traditional round-finned tubes. As a result, they are widely used in industries like ethylene production and oil refining, where efficient heat transfer is essential.
Elliptical finned tubes excel in heat exchange equipment because they reduce flow resistance outside the tube and offer higher efficiency. This results in more compact, lightweight, and efficient heat exchangers. Although they've already been extensively researched, there is still ongoing work to further improve their performance.
| General Descriptions of Studded tubes | Popular Specifications we make |
| Tube OD(mm) | OD38mm~OD219mm |
| Tube Wall Thickness(mm) | 4mm~15mm |
| Tube Length(mm) | 16,000mm Max. |
| Studs OD(mm) | OD6mm~OD16mm |
| Studs Height(mm) | 10mm~45mm |
| Base Tube O.D (mm) | Base Tube Thickness (mm) | Fin Height (mm) | Fin Thickness (mm) | Fin Pitch (mm) |
| 36 x 14 | 1.5-3.0 | 55 x 26 | 0.25 | 2.31,2.54,2.82,3.18 |
| Base Tube Material | Fin Material | Tube Length (Mtr) | ||
| Carbon Steel ,Alloy Steel ,Stainless Steel | Carbon Steel ,Alloy Steel ,Stainless Steel | ≤ 12 Mtrs | ||
| Feature | Description |
| Compact Design | Elliptical finned tubes allow for a tighter arrangement compared to round tubes, reducing the size and footprint of the entire heat exchanger. |
| Low Air Resistance | The elliptical shape minimizes air-side resistance, improving the heat transfer between fluids, while the low thermal resistance inside the tube enhances fluid heat transfer. |
| Larger Heat Transfer Area | For the same cross-sectional area, elliptical tubes provide a longer perimeter, increasing the heat transfer surface area compared to round tubes. |
| Durability | These tubes often use rectangular steel fins, which offer high strength and a longer service life, preventing frost damage during colder months . |
| Optimized Flow | The compact arrangement of elliptical tubes increases the impact of the front row on the rear row, allowing wider fin spacing for the back rows to reduce flow resistance. However, the number of rows should not be excessive. |
| Feature | Description |
| Compact Layout | The oval shape allows for a smaller, space-saving design of the heat exchanger. |
| Low Air Side Resistance | The oval fins reduce air resistance, improving heat transfer efficiency and lowering energy use. |
| Increased Heat Transfer Area | Oval tubes have more surface area than round ones, boosting heat exchange performance. |
| Durability | Rectangular steel fins add strength and resist winter cracking and freezing. |
| Efficient Arrangement | Compact placement of oval fins reduces flow resistance and enhances the efficiency of the heat exchanger. |
| Air-Cooled Heat Exchangers: Used in systems that rely on ambient air for cooling. |
| Condensers and Heaters: Improves heating and cooling in HVAC systems. |
| Oil Refineries and Petrochemicals: Essential for efficient heat exchange in industrial processes. |
| Power Plants: Applied in steam turbine systems for flue gas condensation and auxiliary heat exchange. |
| Steel Industry: Vital in blast furnaces and converter operations. |
| Waste Incinerators and Compressor Coolers: Improves heat exchange in demanding, high-temperature environments. |
FAQ
Elliptical fins are highly efficient due to their shape, which reduces drag by allowing smoother airflow around the tip. This lower drag results in less resistance, enabling rockets or projectiles to reach higher altitudes with better aerodynamic performance.
Elliptical tubes are steel tubes with an elliptical cross-section, offering aesthetic appeal for architectural and cosmetic applications. They are available in various sizes, ranging from 120x60x3.2mm to 500x250x16mm thickness.