Elliptical Finned Tube Properties:
(1) Compared with the round tube finned tube, the Elliptical Finned Tube is easier to achieve a compact arrangement, which reduces the overall volume of the entire Heat Exchanger, thereby reducing the footprint.
(2) Due to the shape characteristics of the Elliptical Finned Tube, the air-side resistance is small, and the heat transfer coefficient between the fluids increases; the thermal resistance in the tube is relatively small, which increases the heat transfer of the fluid in the tube.
(3) The heat transfer area of the Elliptical Finned Tube is larger than that of the circular tube of the same cross-sectional area, because the heat transfer periphery of the elliptical tube is relatively long under the same cross-sectional area.
(4) Rectangular steel fins are the most commonly used in Elliptical Finned Tubes, which have high strength, and the base tube is not suitable for frost cracking in winter and has a long service life.
(5) Since the Elliptical Finned Tube can be arranged more compactly, the front row tube has a greater impact on the rear row. The fin spacing of the rear row tube can be increased to reduce the flow resistance outside the tube, but the number of tube rows should not be too large.
Elliptical Finned Tube(Oval Steel Tube) Product Description:
Elliptical Fin Tube is an elliptical seamless tube as the base tube, which uses aluminum fin strips or copper fin strips to spirally and tightly wrap around the outer surface of the base tube under tension.Elliptical Finned Tube is a heat exchange element consisting of a base tube elliptical tube and outer fins.
Because Elliptical Finned Tube has superior performance than round finned tube, Elliptical Finned Tube is receiving attention, and Elliptical Finned Tube has been widely used in ethylene, oil refining and other industrial fields. Elliptical Finned Tube is used in heat exchange equipment as a high-efficiency heat exchange element. The flow resistance outside the tube is small and the heat exchange efficiency is high, which makes the heat exchange equipment tend to be compact, lightweight, efficient and miniaturized.
Elliptical Finned Tube(Oval Tube Aluminum) Manufacturing Process:
An oval seamless tube is used as the base tube, and the finned tube is spirally wound with aluminum fin tape or copper fin tape under tension and tightly wound on the outer surface of the base tube.
Elliptical Finned Tube(Oval Steel Tubing) Advantages:
Elliptical tube of reflux zone and the windward area is much smaller, effectively reduce the air side, reduce energy consumption; At the same time when the number of tube, oval tube than the circular tube structure is more compact, heat exchanger of smaller volume, lower cost.
Elliptical Finned Tube(Stainless Steel Oval Tube) Applications：
Those are applied for Heat Exchanger Field , Oil refineries, Petrochemical industry, Ship-building, Power Plant Refrigeration.
• All Kind of tube material can be applied as below
• Fin spec can be changed follow with client requirement
• Applied Temperature : 850 C (1593 F)
• This is for Air Cooled Heat Exchanger, Condenser, Air Heater in field of Oil Refinery, Petrochemical Industry, Offshore and Power plants
Elliptical Finned Tube Specifications：
Product Specification Tube Wall Thk 1.5~3.0(mm) 0.06”~0.12” Tube Length ≤18,000 (mm) ≤55 ft Fin Thk 0.4~0.6 (mm) 0.016”~0.024” Fin Height ≤16.5 (mm) ≤0.65” Fin Pitch 250~477 FPM 6~12 FPI Fin Type Solid Plain Material Combinations Fin Material Aluminum (most common grade:Alu.1100, Alu.1060) Copper Steel Tube Material C.S. (most common grade: A179, A192,SA210 GrA1/C,A106 Gr B ) S.S. (most common grade are TP304/304L,TP316/316L) Copper (most common grade:UNS12200,14200, 70600, CuNi70/30, CuNi 90/10) Titanium (most common grade: B338Gr2) Applied Temperature 850°C Type of Service High temperature
