An Unusual Deposit in a Hydraulic Tunnel

by A.L. Pollard,
H.E. House,


Serial Information: Journal of the Power Division, 1959, Vol. 85, Issue 6, Pg. 163-172


Document Type: Journal Paper

Abstract: In conduit of Santeetlah Hydroelectric Project, NC, analysis has shown that black deposit adhering to walls consists of metallic oxides, mostly manganese; determination of process by which materials are extracted from lake water; annual power loss of 5,000, 000 kw-hr is caused by deposit; most effective means of removal is mechanical cleaning by hydraulic jets.

Subject Headings: Tunnels | Hydraulics | Hydro power | Materials processing | Manganese | Walls | Conduits | Lakes | Water loss | Material mechanics | North Carolina

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