The Challenge Project for Saline Water Conversion Corporation
Jubail - Ryiadh Water Transmission System :
Date 1980-1983 Line A+B
Length : 466 km Twin pipelines form Jubail to Riyadh.
Capacity: 830,000 m3 / day.
Line pipe diameter 60" spiral welded Grad b to x60 .
Closed hydraulic system with 6 pump stations.
High pressure system with operating pressure up to 52 bar.
Wall thickness / diameter ratio of 1% .
investment budget 1.6 billion U$.
Description of the Jubail - Ryiadh Water Transmission System:
The first pipeline system to deliver desalinated water from the Arabian Gulf to Riyadh was ,Line A +B With 466 km length running from Jubail to Riyadh. The system was designed as a hydraulically closed high pressure system. At this time such an approach was not common since traditionally water pipeline systems had been designed as open systems. The closed system design required to develop special hydraulic software tools to study the system behavior under all normal (steady state) and abnormal (transient) operation conditions as well as the installation of surge protection equipment. At that time recognized university professors predicted that the design will fail.
This innovative and optimized design approach enabled to lower the investment costs as well as specific transportation costs and higher reliability could be achieved compared to conventional systems. By adaption of the closed system approach the number of pumping equipment could be considerably reduced since no intermediate tank capacity and booster pumps are required at the five intermediate pumping stations. In addition the related piping and electro-mechanical equipment associated with these tanks and booster pumps could be eliminated, leading to a more efficient mode of operation and lower energy consumption as well as lower maintenance cost. The system was designed as a 60" twin carbon steel pipeline with cement mortar lining and six pumping stations with a total installed power of 430 MW. The system was designed for a maximum through- put of 830,000 m3 / day. RWTS Line A + B has been in operation with full capacity since its completion in 1983 without any major shut down. The investment cost was about 1.6 billion US$.
Best Regard
Eng.Meshari Alanazi
Hydraulic Engineer
SWCC-PED
Негізгі бет Jubail - Ryiadh Water Transimission System 1980-1983 (SWCC)
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