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Title: Lock wall deicing with water jets : field tests at ship locks in Montreal, Canada and Sault Ste. Marie, Michigan
Authors: United States. Army. Corps of Engineers. Office of Research and Development.
Brierley, W. H.
Calkins, Darryl J.
DenHartog, Stephen L.
Mellor, Malcolm.
Ueda, Herbert T.
Keywords: Deicing systems
Ship locks
Water jets
High pressure water jets
Montreal, Canada
Sault Ste. Marie, Michigan
Hydraulic structures
Ice prevention
National Research Council Canada. Division of Mechanical Engineering.
Publisher: Cold Regions Research and Engineering Laboratory (U.S.)
Engineer Research and Development Center (U.S.)
Series/Report no.: Special report (Cold Regions Research and Engineering Laboratory (U.S.)) ; 239.
Description: Special Report
Abstract: Tests were made to evaluate a proposed technique for removing ice from lock walls during winter navigation. The technique involves use of a high-pressure waterjet to slice through ice collars that adhere to vertical walls. The test equipment consisted of (1) a jet lance tipped with a nozzle designed to produce a long coherent jet, (2) a small tractor (hydraulically driven) to carry the lance, and (3) a high-pressure pump unit to supply water to the lance. Tests were made with operating pressures from 3,000 to 14,000 lbf/in.^2 and nozzle diameters from 0.063 to 0.152 in. Most of the work involved pressures around 9,000 lbf/in.^2 and nozzle diameters of approximately 0.09 in. Traverse speeds were in the range 3 to 17 ft/min. Jet penetrations of up to 4 ft were achieved in a single pass, and the equipment proved capable of cleaning the lock wall under the prevailing conditions. However, performance was somewhat less favorable than had been predicted, and a revised scheme involving changes in lock operating procedures was proposed.
Rights: Approved for public release; distribution is unlimited.
Appears in Collections:Special Report

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