Air Cooler / Finned Tube Heat Exchanger Sizing

Finned surfaces significantly enhance air-side thermal conductance. Briggs and Young Nusselt correlations are applied along with:

Fins spacing ($s = p_f - t_f$): High fin densities enhance heat transfer but block cross-flow areas.
Air pressure drop ($\Delta P_{air}$): Calculated via Robinson & Briggs. Crucial for fan sizing.
Schmidt Rayon equivalent: Determines the temperature profile along the aluminum fin height.

📝 Configuration

Air Mass Flow ($m_a$) [kg/s]:

Air Inlet Temp ($T_{in,a}$) [°C]:

Density ($\rho_a$) [kg/m³]:

Specific Heat ($C_{p,a}$) [J/kg·K]:

Viscosity ($\mu_a$) [Pa·s]:

Conductivity ($k_a$) [W/m·K]:

Fluid Mass Flow ($m_t$) [kg/s]:

Fluid Inlet Temp ($T_{in,t}$) [°C]:

Density ($\rho_t$) [kg/m³]:

Specific Heat ($C_{p,t}$) [J/kg·K]:

Viscosity ($\mu_t$) [Pa·s]:

Conductivity ($k_t$) [W/m·K]:

Tube OD ($d_o$) [mm]:

Tube ID ($d_i$) [mm]:

Tubes Length ($L$) [m]:

Tubes Wall Cond. [W/m·K]:

Number of Rows ($N_{rows}$):

Tubes per Row ($N_{t,row}$):

Transverse Pitch ($P_T$) [mm]:

Longitudinal Pitch ($P_L$) [mm]:

Number of Tube Passes:

Fins Layout type:

Fin Material Cond. ($k_f$) [W/m·K]:

Fin Thickness ($t_f$) [mm]:

Fin Pitch ($p_f$) [mm]: Note: 2.54 mm = 10 FPI

Fin Height ($h_f$) [mm]:

Configure process flows and geometry and click Sizing Air Cooler HX to view results.