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 of water in industries, desalination systems are good options to supply water demands, especially in regions with a water crisis. If these wastes are used in thermal desalination cycles, in addition to improving efficiency and reducing...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-10-01
|
| Series: | Water |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2073-4441/14/19/3108 |
| _version_ | 1797476437365620736 |
|---|---|
| author | Faezeh Farhadi Mahdi Deymi-Dashtebayaz Edris Tayyeban |
| author_facet | Faezeh Farhadi Mahdi Deymi-Dashtebayaz Edris Tayyeban |
| author_sort | Faezeh Farhadi |
| collection | DOAJ |
| description | Due to the lack of natural water resources and high consumption of water in industries, desalination systems are good options to supply water demands, especially in regions with a water crisis. If these wastes are used in thermal desalination cycles, in addition to improving efficiency and reducing energy consumption, the production of environmental pollutants can also be reduced. In this paper, the multi-stage flash brine recirculation (MSF-BR) system of the Abadan refinery is investigated from energy-exergy-exergoeconomic viewpoints. In addition, the effects of top brine temperature (TBT), number of stages and ambient temperature on the performance of the system are evaluated. The results at maximum brine temperature show that with increasing the TBT, the exergy efficiency, gained output ratio (GOR) and distillate water production increase by 34%, 47% and 47%, respectively. It is also found that if the number of stages in the heat rejection section increases to more than six stages, GOR will decrease. The exergoeconomic analysis results reveal that the relative cost difference increases by 94% with an increase in the number of stages. Finally, it is concluded that by using the waste heat of a refinery complex for heating steam to run the desalination system, there is a 9103 $/year cost savings due to energy consumption reduction and 193 × 10<sup>4</sup> $/year cost savings due to CO<sub>2</sub> emission reduction. |
| first_indexed | 2024-03-09T20:58:42Z |
| format | Article |
| id | doaj.art-cc56d485613c49ceaabc3df9945350c4 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-09T20:58:42Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-cc56d485613c49ceaabc3df9945350c42023-11-23T22:15:53ZengMDPI AGWater2073-44412022-10-011419310810.3390/w14193108Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic AnalysisFaezeh Farhadi0Mahdi Deymi-Dashtebayaz1Edris Tayyeban2Center of Computational Energy, Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar 9617976478, IranCenter of Computational Energy, Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar 9617976478, IranCenter of Computational Energy, Department of Mechanical Engineering, Hakim Sabzevari University, Sabzevar 9617976478, IranDue to the lack of natural water resources and high consumption of water in industries, desalination systems are good options to supply water demands, especially in regions with a water crisis. If these wastes are used in thermal desalination cycles, in addition to improving efficiency and reducing energy consumption, the production of environmental pollutants can also be reduced. In this paper, the multi-stage flash brine recirculation (MSF-BR) system of the Abadan refinery is investigated from energy-exergy-exergoeconomic viewpoints. In addition, the effects of top brine temperature (TBT), number of stages and ambient temperature on the performance of the system are evaluated. The results at maximum brine temperature show that with increasing the TBT, the exergy efficiency, gained output ratio (GOR) and distillate water production increase by 34%, 47% and 47%, respectively. It is also found that if the number of stages in the heat rejection section increases to more than six stages, GOR will decrease. The exergoeconomic analysis results reveal that the relative cost difference increases by 94% with an increase in the number of stages. Finally, it is concluded that by using the waste heat of a refinery complex for heating steam to run the desalination system, there is a 9103 $/year cost savings due to energy consumption reduction and 193 × 10<sup>4</sup> $/year cost savings due to CO<sub>2</sub> emission reduction.https://www.mdpi.com/2073-4441/14/19/3108multi-stage flash desalinationstage numberenergy efficiencyexergy destructionexergoeconomic |
| spellingShingle | Faezeh Farhadi Mahdi Deymi-Dashtebayaz Edris Tayyeban Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis Water multi-stage flash desalination stage number energy efficiency exergy destruction exergoeconomic |
| title | Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis |
| title_full | Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis |
| title_fullStr | Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis |
| title_full_unstemmed | Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis |
| title_short | Studying a Multi-Stage Flash Brine Recirculation (MSF-BR) System Based on Energy, Exergy and Exergoeconomic Analysis |
| title_sort | studying a multi stage flash brine recirculation msf br system based on energy exergy and exergoeconomic analysis |
| topic | multi-stage flash desalination stage number energy efficiency exergy destruction exergoeconomic |
| url | https://www.mdpi.com/2073-4441/14/19/3108 |
| work_keys_str_mv | AT faezehfarhadi studyingamultistageflashbrinerecirculationmsfbrsystembasedonenergyexergyandexergoeconomicanalysis AT mahdideymidashtebayaz studyingamultistageflashbrinerecirculationmsfbrsystembasedonenergyexergyandexergoeconomicanalysis AT edristayyeban studyingamultistageflashbrinerecirculationmsfbrsystembasedonenergyexergyandexergoeconomicanalysis |