Toh Kang Yang, Liang Yong Yeow, Lau Woei Jye, Fimbres Weihs Gustavo A
Faculty of Chemical and Process Engineering Technology, College of Engineering Technology, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Kuantan 26300, Pahang, Malaysia.
Centre of Excellence for Advanced Research in Fluid Flow (CARIFF), Universiti Malaysia Pahang, Lebuhraya Tun Razak, Kuantan 26300, Pahang, Malaysia.
Membranes (Basel). 2020 Oct 15;10(10):285. doi: 10.3390/membranes10100285.
Simulation via Computational Fluid Dynamics (CFD) offers a convenient way for visualising hydrodynamics and mass transport in spacer-filled membrane channels, facilitating further developments in spiral wound membrane (SWM) modules for desalination processes. This paper provides a review on the use of CFD modelling for the development of novel spacers used in the SWM modules for three types of osmotic membrane processes: reverse osmosis (RO), forward osmosis (FO) and pressure retarded osmosis (PRO). Currently, the modelling of mass transfer and fouling for complex spacer geometries is still limited. Compared with RO, CFD modelling for PRO is very rare owing to the relative infancy of this osmotically driven membrane process. Despite the rising popularity of multi-scale modelling of osmotic membrane processes, CFD can only be used for predicting process performance in the absence of fouling. This paper also reviews the most common metrics used for evaluating membrane module performance at the small and large scales.
通过计算流体动力学(CFD)进行模拟,为可视化填充间隔物的膜通道中的流体动力学和传质提供了一种便捷的方式,有助于推动用于海水淡化过程的螺旋卷式膜(SWM)组件的进一步发展。本文综述了CFD建模在用于三种渗透膜过程(反渗透(RO)、正向渗透(FO)和压力延迟渗透(PRO))的SWM组件中新型间隔物开发方面的应用。目前,对于复杂间隔物几何形状的传质和污垢建模仍然有限。与反渗透相比,由于这种渗透驱动膜过程相对起步较晚,压力延迟渗透的CFD建模非常少见。尽管渗透膜过程的多尺度建模越来越受欢迎,但CFD只能用于在不存在污垢的情况下预测过程性能。本文还综述了用于评估小尺度和大尺度膜组件性能的最常用指标。