Numerical Study of the Serpentine Finned Tube Used in Air Cooled Condenser

The large-diameter flat serpentine finned tube is often used in direct air-cooled condensers. The distribution of the air velocities and the temperatures in the serpentine finned tube were analyzed by using three-dimensional numerical simulation methods. The heat transfer coefficients in finned tubes were obtained, which were subsequently used to fit the relational formulas of the heat transfer coefficients with the changing of air flow velocities in different directions. The results offer great help for operation optimization of air-cooled system under different environmental conditions.