Gandharbpur water pumping station (Bangladesh)

Gandharbpur water treatment project

Client: SUEZ / VEOLIA - Model scale: 1:7.79

Context

The joint venture composed of SUEW and OTV (VEOLIA) commissioned ARTELIA to construct a physical model of a pumping station. This is a Raw Water pumping station, which is a part of the Gandharbpur drinking water treatment project near Dhaka.

2 models were built to modelize the water and raw water pumping station.

 

Aims of the physical scale model

The objective of this model is to ensure the proper functioning of the Raw Water PS by checking the following criteria:

  • Submerged and Free surface vortices.
  • Pre-rotation in pump suction.
  • Non-uniform distribution of the velocity at impeller eye (5 velocity measurements per pump)
  • Entrained air or gas bubbles.
  • Inflow conditions from upstream supply.

 

Description of the physical scale model

The first physical model represents all the relevant geometry of the PS: 2 water supply channels, flow distribution chamber and the pumping bay for the 6 pumps.

The second physical model represents all the relevant geometry of the PS: 3 water inlet pipes, submerged holes and weir feeding the pumping tank and a central pumping tank.

Both of models are also equipped with measurement devices: electromagnetic flow meter, swirl meter ant Pitots.