Ras Laffan CCWS

Period:	09/2006-04/2007
Location:	Qatar
Client:	Electowatt Ekono (Jaako Pöyry Group)

assignment/short description

The Ras Laffan Common Cooling Water System (CCWS) for the Ras Laffan Industrial City (RLC) is
being developed incrementally and in phases. Phase I extracts seawater on the northern shore of Ras Laffan and returns it to the eastern shore. The Phase I system capacity is approximately 308,000 m3/h.
The proposed Phase II (and later Phase III and ultimate Phase) expansion of the Ras Laffan CCWS
was based on a combination of re-circulating seawater cooling towers (located on the plot of each
User), and once through cooling systems. The maximum cooling water capacity was increased to a
total of 1,268,000 m3/h (Phase I and II combined).
For the EPIC phase of the development of the CCWS, Electrowatt-Ekono (Jaako Pöyry Group) has
requested WL | Delft Hydraulics to carry out a hydraulic model investigation of the Ras Laffan II
pumping station, main cooling piping system, receiving basin and outfall structure. The project was
fast-tracked within Delft Hydraulics in order to comply with the strict time requirements of the
construction.

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