An air-distribution system for an industrial complex is show in the attached figure, having flow rates as indicated. The velocity in the main duct should not exceed 400 m/min. Using equal pressure...

An air-distribution system for an industrial complex is show in the attached figure, having flow rates as indicated. The velocity in the main duct should not exceed 400 m/min. Using equal pressure drop (Δp/ΔL) in the main duct and balanced pressure drop in the branch line and taking the depth of duct as 2,000 mm throughout, determine the following:

A) The height of the main duct B-C dimension in millimeters.

B) The height of the branch duct B-E dimension in millimeters.