Falling-film heat exchangers used in desalination systems: A review

被引:42
作者
Dai, Zhengshu [1 ,2 ]
Zhang, Yuheng [2 ]
Wang, Sophie [2 ]
Nawaz, Kashif [3 ]
Jacobi, Anthony [2 ]
机构
[1] Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
[2] Univ Illinois, Mech Sci & Engn, Urbana, IL 61801 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN USA
基金
中国国家自然科学基金;
关键词
Falling film; Desalination; Multi-effect distillation; NON-CONDENSABLE GASES; HORIZONTAL-TUBE; MULTIEFFECT DISTILLATION; SCALE FORMATION; SEAWATER DESALINATION; TRANSFER COEFFICIENT; MASS-TRANSFER; CO2; RELEASE; NUMERICAL-SIMULATION; MODE TRANSITIONS;
D O I
10.1016/j.ijheatmasstransfer.2021.122407
中图分类号
O414.1 [热力学];
学科分类号
摘要
With growing demand for fresh water, there has been an increasing interest in energy-efficient desalination technologies. Falling-film-based, multi-effect distillation (MED) systems have been extensively deployed world-wide. The performance of such systems heavily depends on the efficiency of the evaporation process. In the current paper, research on falling-film heat exchangers used in desalination systems, especially MED systems, is critically reviewed to assess the state of the technology. The review includes falling-film evaporation mechanisms, system operation, and scaling issues. Finally, opportunities for further application and areas where more research is needed are identified. (c) 2021 Elsevier Ltd. All rights reserved.
引用
收藏
页数:22
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