د.محمد صالح البوراوي2026-06-142026-06-14https://dspace.academy.edu.ly/handle/123456789/2288Exergy analysis is a method that uses the mass and energy conservation principles together with the second law of thermodynamics (entropy equations) in order to identify the magnitudes and the locations of real energy losses, in order to improve the existing systems, processes or components. The seawater reverse osmosis (SWRO) plant of Tajoura Nuclear Research Center was analyzed thermodynamically using actual plant data. Exergy flow rates are calculated all over the plant. The rates of exergy destruction and their percentages are determined so that the sites of highest exergy destruction can simply be recognized. The highest exergy destruction (48.32 %) happens in the 1st stage high pressure pump (HPP), followed by the exergy destruction in the mixing point at the suction side of the 1st HPP (around 15.46 %). The next largest exergy destruction are the 1st and 2nd membranes modules which is (11.83 %) and (12.06%) respectively, of the total input exergy, the remaining (12.33) % of exergy destruction is distributed among intake transfer pumps (2.996%), filtration unit (3.23%), Turbine (2.01%), 2nd HPP (2.26%) and 2nd stage throttling valve (concentrate) (1.83%). The second law efficiency of the plant was 25.65 % using the old style turbine and high energy consumption membranes. This shows that chances of development might be using a new membranes with high production rate and low energy consumption to reduce exergy destruction and make the plant operation more cost effective. Moreover, other things was taken into account for increasing the efficiency of the plant through the use of high efficiency pump motors with a variable frequency drive (VFD) and the replacement of the traditional Old Turbine and throttling valves with developed energy recovery devices (ERD) such as pressure exchangers (PX).Exergy analysis is a method that uses the mass and energy conservation principles together with the second law of thermodynamics (entropy equations) in order to identify the magnitudes and the locations of real energy losses, in order to improve the existing systems, processes or components. The seawater reverse osmosis (SWRO) plant of Tajoura Nuclear Research Center was analyzed thermodynamically using actual plant data. Exergy flow rates are calculated all over the plant. The rates of exergy destruction and their percentages are determined so that the sites of highest exergy destruction can simply be recognized. The highest exergy destruction (48.32 %) happens in the 1st stage high pressure pump (HPP), followed by the exergy destruction in the mixing point at the suction side of the 1st HPP (around 15.46 %). The next largest exergy destruction are the 1st and 2nd membranes modules which is (11.83 %) and (12.06%) respectively, of the total input exergy, the remaining (12.33) % of exergy destruction is distributed among intake transfer pumps (2.996%), filtration unit (3.23%), Turbine (2.01%), 2nd HPP (2.26%) and 2nd stage throttling valve (concentrate) (1.83%). The second law efficiency of the plant was 25.65 % using the old style turbine and high energy consumption membranes. This shows that chances of development might be using a new membranes with high production rate and low energy consumption to reduce exergy destruction and make the plant operation more cost effective. Moreover, other things was taken into account for increasing the efficiency of the plant through the use of high efficiency pump motors with a variable frequency drive (VFD) and the replacement of the traditional Old Turbine and throttling valves with developed energy recovery devices (ERD) such as pressure exchangers (PX).الهندسة الكيمائية والنفط