Influence of Membrane Intrusion on Permeate‐Sided Pressure Drop During High‐Pressure Reverse Osmosis

2019 ◽  
Vol 91 (4) ◽  
pp. 443-454
Author(s):  
Christine Kleffner ◽  
Gerd Braun ◽  
Sergiy Antonyuk
Keyword(s):  
High Pressure ◽  
Pressure Drop ◽  
Reverse Osmosis

Hoyer motors deliver high pressure in reverse osmosis

World Pumps ◽  
2019 ◽  
Vol 2019 (7-8) ◽  
pp. 10
Keyword(s):  
High Pressure ◽  
Reverse Osmosis

Demonstration of a piston type integrated high pressure pump-energy recovery device for reverse osmosis desalination system

Desalination ◽  
2021 ◽  
Vol 507 ◽  
pp. 115033
Author(s):  
Daiwang Song ◽  
Yin Zhang ◽  
Haitao Wang ◽  
Lidong Jiang ◽  
Chengpeng Wang ◽  
...  
Keyword(s):  
High Pressure ◽  
Reverse Osmosis ◽  
Energy Recovery ◽  
Pump Energy ◽  
High Pressure Pump ◽  
Pressure Pump ◽  
Reverse Osmosis Desalination

scholarly journals Pilot Study on Catalyzed Oxidation-Ceramic Membrane-High Pressure Reverse Osmosis for Desulfurization Wastewater Recovery

2021 ◽  
Vol 668 (1) ◽  
pp. 012033
Author(s):  
Zhongjie Wu ◽  
Yaqin Hou ◽  
Xinmei Li ◽  
Yanping Li ◽  
Hongmei Cao
Keyword(s):  
High Pressure ◽  
Pilot Study ◽  
Reverse Osmosis ◽  
Ceramic Membrane ◽  
Catalyzed Oxidation ◽  
Desulfurization Wastewater

scholarly journals A time-dependent model of pressure drop in reverse osmosis spiral wound membrane modules

2021 ◽  
Vol 54 (3) ◽  
pp. 158-163
Author(s):  
A. Ruiz-García ◽  
I. Nuez
Keyword(s):  
Pressure Drop ◽  
Reverse Osmosis ◽  
Time Dependent ◽  
Dependent Model ◽  
Membrane Modules ◽  
Time Dependent Model ◽  
Spiral Wound

Design principles and challenges of bench-scale high-pressure reverse osmosis up to 150 bar

Desalination ◽  
2021 ◽  
Vol 517 ◽  
pp. 115237
Author(s):  
Douglas M. Davenport ◽  
Li Wang ◽  
Evyatar Shalusky ◽  
Menachem Elimelech
Keyword(s):  
High Pressure ◽  
Reverse Osmosis ◽  
Design Principles ◽  
Bench Scale

Topology Optimization of Spacers for Maximizing Permeate Flux on Membrane Surface in Reverse Osmosis Channel

2011 ◽  
Author(s):  
Seungjae Oh ◽  
Semyung Wang ◽  
Minkyu Park ◽  
Joonha Kim
Keyword(s):  
Topology Optimization ◽  
Pressure Drop ◽  
Reverse Osmosis ◽  
Membrane Surface ◽  
Design Development ◽  
Permeate Flux ◽  
Membrane Channel ◽  
Initial Attempt ◽  
Membrane Surfaces ◽  
Ro Membrane

The objective of this study is to design spacers using fluid topology optimization in 2D crossflow Reverse Osmosis (RO) membrane channel to improve the performance of RO processes. This study is an initial attempt to apply topology optimization to designing spacers in RO membrane channel. The performance was evaluated by the quantity of permeate flux penetrating both upper and lower membrane surfaces. A coupled Navier-Stokes and Convection-Diffusion model was employed to calculate the permeate flux. To get reliable solutions, stabilization methods were employed with standard finite element method. The nine reference models which consist of the combination of circle, rectangular, triangle shape and zigzag, cavity, submerge configuration of spacers were simulated. Such models were compared with new model designed by topology optimization. The permeate flux at both membrane surfaces was determined as an objective function. In addition, permissible pressure drop along the channel and spacer volume were used as constraints. As a result of topology optimization as the permissible pressure drop changes in channel, characteristics of spacer design development was founded. Spacer design based on topology optimization was reconstructed to a simple one considering manufactuability and characteristics of development spacer design. When a simplified design was compared with previous 9 models, new design has a better performance in terms of permeate flux and wall concentration at membrane surface.

scholarly journals Manufacture of Portable Inflatable Kayak Using Ultra High Pressure Drop Stitch

2013 ◽  
Vol 37 (5) ◽  
pp. 551-557
Author(s):  
Chan-Hong Park ◽  
Byeong-Ho Park ◽  
Jong-Dae Park ◽  
Hyeon-Kyeong Seong ◽  
Lee-Young Lim
Keyword(s):  
High Pressure ◽  
Pressure Drop ◽  
Ultra High Pressure ◽  
High Pressure Drop

scholarly journals 3D Printing for Energy-Saving: Evidence from Hydraulic Manifolds Design

Energies ◽  
2019 ◽  
Vol 12 (13) ◽  
pp. 2462 ◽  
Author(s):  
Jun-hui Zhang ◽  
Gan Liu ◽  
Ruqi Ding ◽  
Kun Zhang ◽  
Min Pan ◽  
...  
Keyword(s):  
High Pressure ◽  
Pressure Drop ◽  
Numerical Methods ◽  
3D Printing ◽  
Pressure Loss ◽  
Smooth Transition ◽  
Factorial Experiments ◽  
Space Requirement ◽  
Geometrical Features ◽  
Full Factorial

With the compact circuit layout and small size, hydraulic manifolds sometimes cause high pressure loss. The purpose of this paper is to investigate the pressure loss under different circumstances with various geometry features and present solutions to reduce pressure loss. The pressure loss performance is evaluated by both experimental and numerical methods. Verified by the experiments, the numerical simulations are qualified to depict the correct trend of the pressure drop. After the basic analysis of traditional passages, three novel forms are proposed, which are very hard to be manufactured by a common method. Furthermore, the geometrical features are selected optimally by means of full factorial experiments to balance the pressure loss and space requirement. Moreover, taking advantage of 3D printing, it is possible to build the passages in novel forms which are beyond the capacity of conventional manufacturing. Results show that the pressure loss can be reduced considerably by adopting a smooth transition, where the reduction can reach up to 50%.

scholarly journals High-Pressure Reverse Osmosis for Energy-Efficient Hypersaline Brine Desalination: Current Status, Design Considerations, and Research Needs

2018 ◽  
Vol 5 (8) ◽  
pp. 467-475 ◽  
Author(s):  
Douglas M. Davenport ◽  
Akshay Deshmukh ◽  
Jay R. Werber ◽  
Menachem Elimelech
Keyword(s):  
High Pressure ◽  
Reverse Osmosis ◽  
Energy Efficient ◽  
Current Status ◽  
Research Needs ◽  
Design Considerations
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