Exergic balance and efficiency of reverse osmosis modules

In this paper the option of using exergy analysis method is proposed for preparing make-up water by reverse osmosis systems (ROS), which are spreading in the reconstruction of the chemical departments of Ukrainian nuclear power plants. The estimation of exergy efficiency of water purification by membrane units is made and the nature of influence of the ROS main parameters on thermodynamic efficiency is identified. The conclusion on the possible ways of facilities improvement is drawn