Finned Tubes and Coils

Finned tubes and coils are essential heat transfer components used in heating and cooling applications where fast, controlled, and high-efficiency thermal exchange is required.

They provide efficient heat transfer between the fluid (hot or cold) flowing inside the system and the surrounding air. Thanks to the finned structure, the surface area is significantly increased, enabling higher capacity within a more compact design.

Coils are generally classified into two main types:

  • Finned (high surface area designs)
  • Plain (direct contact applications)

In finned coils, the addition of fins to the tube surface significantly increases the heat transfer area, while plain coils are preferred in processes requiring direct fluid interaction.

Technical Specifications

Finned tubes and coils are designed to achieve maximum heat transfer performance while minimizing energy consumption.

Key Features:

  • High surface area for superior heat transfer
  • Efficient system operation with low pressure drop (ΔP)
  • Space-saving compact design
  • Optimized air and fluid distribution

All designs are project-specific and optimized based on U-value, LMTD, flow rate, temperature, and process conditions.

Main Fin Types

  • Spiral Wound Finned Tubes
  • Extruded (integrally rolled) Finned Tubes
  • L-Type Finned Tubes
  • KL-Type Finned Tubes
  • G-Type Finned Tubes
  • Laser Welded Finned Tubes
  • Double Disc Stacked Finned Tubes
  • Elliptical (Oval) Disc Stacked Finned Tubes
  • Low-Fin Tubes
  • Grooved and Rifled Tubes
  • Elliptical (Oval) Finned Tubes

Design & Material

Finned tubes and coils are custom-engineered based on operating conditions, fluid properties, and process requirements.

During the design process, the following parameters are evaluated:

  • Heat load, U-value, and LMTD
  • Flow rate and flow regime
  • Pressure drop (ΔP) limits
  • Fin geometry and surface area
  • Flow distribution and number of passes

These parameters are analyzed together to determine the optimum solution.

Design and manufacturing processes are carried out in accordance with internationally recognized standards and engineering criteria.

Tube Materials

  • Copper tubes
  • Carbon steel tubes
  • Stainless steel (AISI 304 / 316L and other alloys)
  • CuNi (for seawater applications)
  • Special alloys

Fin (Fins) Materials

  • Aluminum
  • Copper
  • Galvanized steel (cold rolled sheet / DKP sheet)
  • Stainless steel

Material selection is determined based on operating temperature, pressure, corrosion risk, and environmental conditions. With the appropriate material combination, high heat transfer performance, long service life, and reliable operation are ensured.

Application Areas

Documents

Dokümanı İndir

Quotation Form