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Malaysia Water Research Journal
A geometrically pump sump model with a scale ratio of 1:10 similar to the
prototype had been constructed for this study. Figure 1 and 2 below shows the
layout plan and side view of the study area.
Figure 1. Detail plan view of the pump sump.
Figure 2. Overall side view of the pump sump.
In order for the pump sump model to maintain the water level at a constant
value during observation, a closed loop system using a circulating pump had
been built (please refer to Figure 3). This system also enables the regulation
of water level in the pump sump model by changing the volume of water
contained. In the closed loop of flow system, the flow will be drawn through
the pump sump model to the suction side of the external circulating pumps
and then into the intake structure of the pump sump model. All the flow for the
model testing is measured using the ultrasonic flow meter. In order to control
the regulation of flow and the delivery head, a butterfly valve is incorporated in
each of the external circulating pumps as a control valves.
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Institut Penyelidikan Hidraulik Kebangsaan Malaysia (NAHRIM)
National Hydraulic Institute of Malaysia (NAHRIM)