Debottlenecking in the MSFD Type of Brackish Water Desalination Process

فاقد چكيده فارسي

The scope of this paper is to develop two innovative solutions of bottlenecks against more popularity of MSFD application among the world; supply required heat especially in remote area and high rate of feed water rejection. To prevail the first limitaion, adequate integration of technologies for exist 197 ton per hour MSFD unit and concentrating solar power (CSP) as an alternative renewable energy source is considered. This retrofit study on such plants may lead to achieve solar steam. Steam is the heat source in the brine heater of MSFD unit. So, as the result of this modification, 17.8 MW of fossil energy is replaced by solar energy. In the second place, return of more than 50 percent of the treated water to the river with around 14°C temperature rise by using cooling tower system, is prevented. It is found that for each of three exist thermal desalination plants up to 53 percent of feed water, i.e.; 667 m3/h and same amount of reject water can be conserved. Though, with this optimization, the unit steam consumption has been increased up to 13 ton/h, about 50 percent of design.