MSF

This paper deals with systems and equipment to put onboard ships meant for water desalting. The ship is rigged to work offshore, either slowly sailing or, usually, being afloat motionless. The ship is a slightly modified liquid gas carrier. Of course, it also holds both modular and dismountable seaw

Two major techniques are commercially used in different parts of the world: distillation and membrane processes. The dominant distillation process is multi-stage flash (MSF), and the main membrane process is reverse osmosis (RO). Although cost factors vary by site, the total cost of producing potabl

This work outlines the development of a fault diagnostic system for a multi-stage flash (MSF) desalination plant using artificial neural networks (ANNs). This diagnostic system processes the plant data to determine whether the process state is normal or not. In the last case, the diagnostic system d

A new innovative and efficient system has been studied, realized and tested by SWS’s engineers for the production of top quality distillate TDS<0.1 ppm by evaporation of seawater in both MSF and MED desalination plants. This system is based on the combined effect of scrubbing the vapor outflowing fr

Between the fourth quarter of 1999 and the middle of 2001, the desalinated water production in the UAE will be increased by 30%. Several desalination projects have been started on a “fast track” mode with record completion time. Various new techniques have been adopted, from the technical or financi

This paper presents an alternative method for the quantification of the irreversible phenomena that characterize the flashing process in a stage of a MSF desalination plant, and that lead to an increase in the brine temperature of the flashing tank with respect to the ideal equilibrium conditions. T

When Ghubrah MSF Unit no. 2 was commissioned in 1982, it was found that condensate from inter and after condensers was not suitable for boiler feed water as it contains CO2. This study discusses the modification carried out to re-use this condensate by connecting it to the last stage distillate tray

A field test in a multi-stage flash (MSF) once-through plant has been evaluated. Six metallic construction materials, five stainless steels and one nickel base alloy, were exposed for a period of 28 months in the hot chlorinated and air saturated seawater stream of the first flash chamber at a tempe

New products based on enhanced maleate chemistry have been developed to control the broad range of deposits found in thermal desalination plants. To investigate the performance characteristics of enhanced maleate products, laboratory tests were developed to measure the control of fouling species. Th