Senegal rice scheme: 38 m of head, which pipe size?
Fatou D.
Verified member · Procurement lead
1,500 acres of irrigation, 300 m³/h at the pumping station, 800 m of line to the field head.
The terrain rises 38 m. Design uses 8-inch pipe; someone suggests 10-inch.
How much do pump power and electricity differ, and how do we decide?
Discussion (3)
Ahmed Ben SalahVerified member · Service engineer2026-09-20
At 300 m³/h, 8-inch runs near 2.6 m/s and loses a lot; 10-inch is closer to reasonable.
Grace W.Verified member · Project chief engineer2026-09-21
Compare annual running hours: the pipe upgrade usually pays back in one to two years.
Kwame A.Verified member · Mine equipment manager2026-09-22
Also check the pump curve: a larger pipe shifts the flow point and may overload the pump.
Recent replies in this thread, ordered by posting time
Join the Discussion
Sign in to reply; content appears after review.
Log in to Reply