Novel Spacer Design Using Topology Optimization in a Reverse Osmosis ChannelSource: Journal of Fluids Engineering:;2014:;volume( 136 ):;issue: 002::page 21201DOI: 10.1115/1.4025680Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The objective of this study is to design spacers using topology optimization in a twodimensional (2D) crossflow reverse osmosis (RO) membrane channel in order to improve the performance of RO processes. This study is the first attempt to apply topology optimization to designing spacers in a RO membrane channel. The performance was evaluated based on the quantity of permeate flux penetrating both the upper and lower membrane surfaces. Here, Navier–Stokes and convectiondiffusion equations were employed to calculate the permeate flux. The nine reference models, consisting of combinations of circle, rectangle, and triangle shapes and zigzag, cavity, and submerged spacer configurations were then simulated using finite element method so that the performance of the model designed by topology optimization could be compared to the reference models. As a result of topology optimization with the allowable pressure drop changes in the channel, characteristics required of the spacer design were determined. The spacer design based on topology optimization was then simplified to consider manufacturability and performance. When the simplified design was compared to the reference models, the new design displayed a better performance in terms of permeate flux and wall concentration at the membrane surface.
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contributor author | Oh, Seungjae | |
contributor author | Wang, Semyung | |
contributor author | Park, Minkyu | |
contributor author | Ha Kim, Joon | |
date accessioned | 2017-05-09T01:08:24Z | |
date available | 2017-05-09T01:08:24Z | |
date issued | 2014 | |
identifier issn | 0098-2202 | |
identifier other | fe_136_02_021201.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/154936 | |
description abstract | The objective of this study is to design spacers using topology optimization in a twodimensional (2D) crossflow reverse osmosis (RO) membrane channel in order to improve the performance of RO processes. This study is the first attempt to apply topology optimization to designing spacers in a RO membrane channel. The performance was evaluated based on the quantity of permeate flux penetrating both the upper and lower membrane surfaces. Here, Navier–Stokes and convectiondiffusion equations were employed to calculate the permeate flux. The nine reference models, consisting of combinations of circle, rectangle, and triangle shapes and zigzag, cavity, and submerged spacer configurations were then simulated using finite element method so that the performance of the model designed by topology optimization could be compared to the reference models. As a result of topology optimization with the allowable pressure drop changes in the channel, characteristics required of the spacer design were determined. The spacer design based on topology optimization was then simplified to consider manufacturability and performance. When the simplified design was compared to the reference models, the new design displayed a better performance in terms of permeate flux and wall concentration at the membrane surface. | |
publisher | The American Society of Mechanical Engineers (ASME) | |
title | Novel Spacer Design Using Topology Optimization in a Reverse Osmosis Channel | |
type | Journal Paper | |
journal volume | 136 | |
journal issue | 2 | |
journal title | Journal of Fluids Engineering | |
identifier doi | 10.1115/1.4025680 | |
journal fristpage | 21201 | |
journal lastpage | 21201 | |
identifier eissn | 1528-901X | |
tree | Journal of Fluids Engineering:;2014:;volume( 136 ):;issue: 002 | |
contenttype | Fulltext |