Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis

Due to the lack of natural water resources and high consumption in industries, desalination systems are good options supply demands, especially regions with a crisis. If these wastes used thermal cycles, addition improving efficiency reducing energy consumption, production environmental pollutants can also be reduced. In this paper, multi-stage flash brine recirculation (MSF-BR) system Abadan refinery is investigated from energy-exergy-exergoeconomic viewpoints. addition, effects top temperature (TBT), number stages ambient on performance evaluated. The results at maximum show that increasing TBT, exergy efficiency, gained output ratio (GOR) distillate increase by 34%, 47% 47%, respectively. It found if heat rejection section increases more than six stages, GOR will decrease. exergoeconomic analysis reveal relative cost difference 94% an stages. Finally, it concluded using waste complex for heating steam run system, there 9103 $/year savings due reduction 193 × 104 CO2 emission reduction.