Method and system for minimizing energy consumption during reverse osmosis unit operation

摘要

#$%^&*AU2017202157B220180823.pdf#####ABSTRACT METHOD AND SYSTEM FOR MINIMIZING ENERGY CONSUMPTION DURING REVERSE OSMOSIS UNIT OPERATION [0044] A method for estimating an optimal individual product water flow rate for a RO train in an RO unit. The RO unit comprises a plurality of RO trains. The method comprises providing a desired overall product water flow rate for the reverse osmosis unit followed by obtaining one or more dynamic characteristics for each RO train in the plurality of RO trains. The method then involves estimating a minimal specific energy consumption value for each RO train using the one or more dynamic characteristics; and subsequently obtaining an optimal individual product water flow rate for each RO train. The optimal individual product water flow rate is based on the corresponding minimal specific energy consumption value for the RO train, wherein the sum of the optimal individual product water flow rate for each RO train yields the desired overall product water flow rate. A tool that uses the method described is given, which may then be incorporated into a RO system. 15