板式气隙膜蒸馏组件的性能与计算流体力学数值模拟研究

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC

ACS Applied Electronic Materials Pub Date : 2024-07-24 DOI:10.3390/membranes14080162

Haojie Bi, Hongying Yuan, Zhiyuan Xu, Zhuobin Liang, Yongliang Du

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引用次数: 0

摘要

膜蒸馏（MD）广泛应用于海水淡化领域。在其各个子类别中，气隙膜蒸馏（AGMD）因其热效率高且与低品位热源兼容而脱颖而出。本研究通过以实验验证为基础的数值模拟，深入探讨了不同操作条件对 AGMD 性能的影响。目的是提高 AGMD 的性能，缓解极化现象，并为优化膜组件设计提供参考。结果表明，模拟值与实验值的一致性很高。当提高进料温度和降低冷却剂温度时，极化现象对 AGMD 性能的影响减小。当进料温度从 50 °C 升至 75 °C 时，质量通量、总渗透浓度（TPC）和热通量分别增加了 81.69%、36.89% 和 118.01%。当冷却剂温度从 22 °C 降至 7 °C 时，质量通量增加了 37.06%。响应面分析表明，进料温度对 AGMD 性能有显著影响，而且进料温度与冷却剂温度之间存在明显的交互作用。这些发现将在实际应用中发挥关键作用。

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Research on the Performance and Computational Fluid Dynamics Numerical Simulation of Plate Air Gap Membrane Distillation Module

Membrane distillation (MD) is widely used in the field of seawater desalination. Among its various sub-categories, air gap membrane distillation (AGMD) stands out due to its high thermal efficiency and compatibility with low-grade heat sources. This study delves into the impact of varying operating conditions on AGMD performance, employing numerical simulations which are grounded in experimental validation. The objective was to enhance the performance of AGMD, mitigate polarization phenomena, and provide a reference for optimizing membrane component design. The results show that the agreements between the simulated and the experimental values were high. When increasing the feed temperature and decreasing the coolant temperature, the impact of polarization phenomena on the performance of AGMD was reduced. The mass flux, Total Permeate Concentration (TPC), and heat flux increased by 81.69%, 36.89%, and 118.01%, respectively, when the feed temperature was increased from 50 °C to 75 °C. When the coolant temperature decreased from 22 °C to 7 °C, the mass flux increased by 37.06%. The response surface analysis revealed that the feed temperature has significant influence on AGMD performance, and there is a noticeable interaction between the feed temperature and coolant temperature. These findings will play key roles in practical applications.

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来源期刊

ACS Applied Electronic Materials Multiple-

CiteScore

7.20

自引率

4.30%

发文量

567

期刊介绍： ACS Applied Electronic Materials is an interdisciplinary journal publishing original research covering all aspects of electronic materials. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrate knowledge in the areas of materials science, engineering, optics, physics, and chemistry into important applications of electronic materials. Sample research topics that span the journal's scope are inorganic, organic, ionic and polymeric materials with properties that include conducting, semiconducting, superconducting, insulating, dielectric, magnetic, optoelectronic, piezoelectric, ferroelectric and thermoelectric. Indexed/Abstracted： Web of Science SCIE Scopus CAS INSPEC Portico