Calculation of diameter for gravity-driven flow pipes
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Height difference: 3 m, flow rate: 450 m3/h, pipe length: 14 meters. What is the pipe diameter?
The gravity-driven flow velocity is generally taken as 0.2–0.5 m/s
Since the specific medium is not clear, and based on the flow rate provided by the moderator of Tinghai, a value of 0.5 m/s is used; pipe resistance is ignored (as the pipes are short), resulting in a pipe diameter of approximately DN600