And Velocity Pressure is: $$P_v = \left( \fracV4005 \right)^2$$
Arjun Singh wiped a smear of coffee from the edge of his drawing board. Before him lay a set of mechanical plans for the "Meridian Tower," a 20-story glass shard piercing the grey Singapore sky. It was his first project as a lead HVAC engineer, and it was a beast. esp calculation hvac excel sheet
Restrict inputs in your duct width and height columns to positive numbers only to avoid formula breakages ( #NUM! ). And Velocity Pressure is: $$P_v = \left( \fracV4005