Record Details

Sand pumping efficiency of a water ejector apparatus

ScholarsArchive at Oregon State University

Field Value
Title Sand pumping efficiency of a water ejector apparatus
Names Saguanwongse, Suvat (creator)
Slotta, Larry S. (advisor)
Date Issued 1968-05-09 (iso8601)
Note Graduation date: 1968
Abstract The purpose of this investigation is to study the effect of the
solid transport capacity in pumping operation: A special type of
jet apparatus was investigated which emits a water jet downward
counter current to delivery flow, from inside of the suction pipe toward
sediment to be excavated. Two sizes of jet pipe were considered;
each was tested at three different positions for a centrifugal delivery
pump operated in its economic range of operation.
This jet pipe discharge was confirmed to increase sand transport
capacity of the centrifugal delivery pump as the jet mouth was in
the position close to the annular suction mouth. At this position, the
sand transport capacity of the centrifugal delivery pump increased as
the jet discharge increased. When the jet mouth was positioned above
the area close to the suction mouth, the sand transport capacity of the
centrifugal delivery pump decreased. As the jet mouth was extended below the area close to the suction mouth, the sand transport capacity
of the centrifugal delivery pump was nearly equal in either case of
pumping with or without the jet water in operation.
Genre Thesis/Dissertation
Topic Dredges
Identifier http://hdl.handle.net/1957/47187

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