TY - JOUR
T1 - Mathematical model of flat sheet membrane modules for FO process
T2 - Plate-and-frame module and spiral-wound module
AU - Gu, B.
AU - Kim, D. Y.
AU - Kim, J. H.
AU - Yang, D. R.
N1 - Funding Information:
This research was financially supported by Ministry of Knowledge Economy ( 2008NFC12J0431502010 ) and Seawater Engineering & Architecture of High Efficiency Reverse Osmosis (SEAHERO) program funded by Ministry of Land, Transport and Maritime Affairs ( 10CPTA-A042522-05-000000 ).
PY - 2011/9/1
Y1 - 2011/9/1
N2 - The forward osmosis process is considered a promising desalination method due to its low energy requirement compared to other methods. In this study, modelling and simulations for a plate-and-frame and a modified spiral-wound module are carried out for the FO process. The mathematical models consist of mass balance, a permeate flux model, and concentration polarization equations. The plate-and-frame model is formulated with consideration of flow directions, and the modified spiral-wound model is formulated with consideration of its geometric characteristics. These two sets of model equations are numerically and iteratively integrated since they are implicit and highly non-linear. The simulation for both modules was conducted by varying 4 types of operating conditions: volumetric flow rate of the feed and the draw solution, the concentration of the draw solution, flow direction, and the membrane orientation. The results for various conditions are also compared. In future research, the developed model could be applied for designing FO modules and finding optimal operating conditions.
AB - The forward osmosis process is considered a promising desalination method due to its low energy requirement compared to other methods. In this study, modelling and simulations for a plate-and-frame and a modified spiral-wound module are carried out for the FO process. The mathematical models consist of mass balance, a permeate flux model, and concentration polarization equations. The plate-and-frame model is formulated with consideration of flow directions, and the modified spiral-wound model is formulated with consideration of its geometric characteristics. These two sets of model equations are numerically and iteratively integrated since they are implicit and highly non-linear. The simulation for both modules was conducted by varying 4 types of operating conditions: volumetric flow rate of the feed and the draw solution, the concentration of the draw solution, flow direction, and the membrane orientation. The results for various conditions are also compared. In future research, the developed model could be applied for designing FO modules and finding optimal operating conditions.
KW - Concentration polarization
KW - Forward osmosis
KW - Modelling
KW - Modified spiral-wound module
KW - Plate-and-frame module
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U2 - 10.1016/j.memsci.2011.06.012
DO - 10.1016/j.memsci.2011.06.012
M3 - Article
AN - SCOPUS:79960635813
SN - 0376-7388
VL - 379
SP - 403
EP - 415
JO - Jornal of Membrane Science
JF - Jornal of Membrane Science
IS - 1-2
ER -