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Development of SWRO-PRO hybrid process simulation and cost estimation program
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 Title & Authors
Development of SWRO-PRO hybrid process simulation and cost estimation program
Choi, Yongjun; Shin, Yonghyun; Lee, Sangho; Kim, Seung-Hyun;
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The main objective of this paper is to develop computer simulation program for performance evaluation and cost estimation of a reverse osmosis (RO) and pressure-retarded osmosis (PRO) hybrid process to propose guidelines for its economic competitiveness use in the field. A solution-diffusion model modified with film theory and a simple cost model was applied to the simulation program. Using the simulation program, the effects of various factors, including the Operating conditions, membrane properties, and cost parameters on the RO and RO-PRO hybrid process performance and cost were examined. The simulation results showed that the RO-PRO hybrid process can be economically competitive with the RO process when electricity cost is more than 0.2 $/kWh, the PRO membrane cost is same as RO membrane cost, the power density is more than and PRO recovery is same as 1/(1-RO recovery).
Cost estimation;Modeling;Simulation program;SWRO-PRO hybrid process;
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