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新型卷轴空心纤维模块用于高性能膜蒸

Sarah Almahfoodh¹, Adnan Qamar², Sarah Kerdi²

¹Water Desalination and Reuse Center (WDRC), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia; Chemical and Biological Engineering Program, Division of Physical Sciences and Engineering (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal 23955-6900, Saudi Arabia.

|January 18, 2024

概括

一种新的卷轴空心纤维 (CHF) 设计通过减少热损失和温度极化,显著提高了膜蒸 (MD) 的效率. 这种新的方法提高了流量,降低了直接接触膜蒸 (DCMD) 模块的能耗.

科学领域:

化学工程是化学工程的重要组成部分.
材料科学材料科学材料科学

背景情况:

膜蒸 (MD) 的扩大面临着热回收和温度极化 (TP) 的挑战.
直接接触膜蒸 (DCMD) 模块由于膜长度的热损失,其热效率较低.

研究的目的:

为DCMD.引入和评估一个新的卷轴空心纤维 (CHF) 模块设计.
为了将料流向与膜表面脱,以减轻TP效应.

主要方法:

用实验和计算分析来比较CHF模块与传统设计.
性能是根据流量,热效率和能源消耗来评估的.

主要成果:

电加热模块设计有效地减轻了空心纤维DCMD (HF DCMD) 中的TP效应.
流量增加了148% (交叉流) 和163% (局部加热 - LH模式).
与传统设计相比,LH模式下的CHF显示能耗减少81%.

结论:

电加热模块设计为高效和高性能DCMD提供了显著的进步.
这一创新为改善MD技术提供了新的途径.
该CHF设计成功地解决了当前DCMD模块性能的主要局限性.

关键词:

能源消耗能源消耗是指能源的消耗.空洞的纤维纤维是空洞的局部加热局部加热膜蒸的蒸方式模块设计模块设计多个尺度的模拟.

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