HVAC engineers

Duct Static Pressure Calculation & Fan Selection in MEP Design In HVAC systems, proper duct static pressure calculation and fan selection are critical to ensure efficient air distribution and system performance. As an MEP Quantity Engineer, understanding these parameters helps in accurate estimation, equipment selection, and coordination during project planning. Why Static Pressure Matters Static pressure represents the resistance that air faces while moving through the duct system. This resistance comes from duct length, fittings, dampers, filters, and diffusers. If static pressure is not properly calculated, the system may suffer from poor airflow, excessive noise, or higher energy consumption. * Key Factors in Static Pressure Calculation: Duct length and size  Number of elbows, bends, and fittings  Air filters and dampers Grilles and diffusers Friction loss in ducts Fan Selection After calculating the total static pressure and required airflow (CFM), the appropriate fan...