期刊
JOURNAL OF MEMBRANE SCIENCE
卷 620, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.memsci.2020.118704
关键词
Osmotic power; Virtual prototyping; Geometry optimization; Computational fluid dynamics; Renewable energy
资金
- Innovation Fund Denmark, Innovationsfonden, under the MEMENTO project [4106-00021B]
Recent research has focused on developing pressure retarded osmosis-specific membranes, while a novel submerged-helical module design with potential for significant net energy generation under specific conditions has been introduced. This design is advantageous in terms of operation costs compared to spiral-wound modules and plate-and-frame modules for pressure retarded osmosis applications.
Recent research efforts in taking pressure retarded osmosis closer to commercialization have concentrated on the development of pressure retarded osmosis-specific membranes. The module design, on the other hand, has not attracted much attention, although the need for pressure retarded osmosis-specific module designs was identified, when traditional desalination module designs were proven unfeasible for pressure retarded osmosis applications. This work introduces a novel, pressure retarded osmosis-specific module design. The submerged-helical module is a low packing density, spacer-free design, which implicates a significantly lower pressure drop along the draw stream with a power density, similar to more densely packed module types. In this article a theoretical model for the performance of the submerged-helical module design is developed. The model shows that the submerged-helical module may yield a significant net energy generation, under specific geometry configurations and operation conditions. Its results indicate that the design is advantageous to spiral-wound modules and plate-and-frame modules for pressure retarded osmosis, in terms of operation costs.
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