Pressure Loss of an Elbow with Turning Vanes

This section is intended to calculate the pressure loss of a 90° duct elbow equipped with turning vanes, commonly used in ventilation duct systems. Turning vanes (guiding vanes) allow the airflow to change direction in a controlled manner rather than abruptly or turbulently, thereby reducing turbulence and energy loss. Especially in sharp-radius elbows used in confined spaces, when parameters such as insulation, duct dimensions, and air flow rate are entered, the resulting pressure loss in the system can be calculated using this tool. This provides realistic data for duct design, fan selection, and overall system balancing.