Finned Tube Radiators

Finned Tube Radiator: High Efficiency in Industrial Heat Transfer

The finned tube radiator, a fundamental component of industrial heating, cooling, and drying systems, is a heat exchanger that ensures the most efficient transport of energy by increasing the heat transfer surface area. This structure, created by adding fins to the outer surface of a plain tube, increases the heat transfer surface by 10 to 20 times, allowing for massive thermal power to be obtained in a compact space. As Fintherm, we take your operational performance to the peak while reducing your energy costs with finned tube radiators specially designed according to your process needs. These radiators are configured to transfer the heat of the fluid passing through them (steam, hot water, thermal oil, or refrigerant gases) to the air or another gas passing outside. The finned structure minimizes heat transfer resistance by increasing the contact time and area of the air with the tube surface.

Finned Tube Technologies and Manufacturing Types

Within Fintherm, different fin attachment methods are used according to the thermodynamic and mechanical requirements of the application area. The most preferred technologies in the finned tube radiator manufacturing process are as follows:

• Wound Fin (Spiral) Coils: Obtained by tension-wrapping fins onto the tube. Temperature and corrosion resistance can be adjusted with different winding types such as L-Fin, KL-Fin, and G-Fin.
• Plate Fin Coils: These are models with high mechanical strength where rectangular or circular plates are arranged on the tubes individually and fixed by internal expansion (bulleting) methods.
• Oval (Elliptical) Finned Tubes: These are aerodynamic designs that reduce fan energy consumption by showing low resistance to airflow.
• Extruded (Bimetallic) Finned Tubes: The most efficient tube type where the fins are processed directly from the tube material, resulting in near-zero thermal resistance.

Material Selection and Corrosion Resistance

Material selection in finned tube radiators is determined according to the chemical structure of the fluid circulating in the system and the humidity of the environment. The wide range of materials we offer as Fintherm is as follows:

• Tube Materials: Carbon steel, stainless steel (304/316), copper, brass, and cupro-nickel (bafon).
• Fin Materials: Aluminum, copper, stainless steel, and carbon steel.
• Protective Coatings: Radiator lifespan is maximized with hot-dip galvanizing, electro-galvanizing, or epoxy coating options for harsh environmental conditions.

Application Areas and Sectoral Use

Finned tube radiators offer professional solutions at every point where heat needs to be transferred from a fluid to air or from air to a fluid:

• Drying Systems: Textile stenter machines, food drying ovens, and timber drying facilities.
• Climate Control (HVAC): Heating and cooling coils in air handling units.
• Energy and Process: Oil coolers, generator radiators, and waste heat recovery units.
• Chemical and Pharmaceutical: Reactor cooling and air conditioning systems requiring precise temperature control.