چكيده به لاتين
This dissertation studies the advantages of membrane-thermal hybrid desalination, to introduce a system including one hybrid desalination unit using renewable solar and wind energy. In this system, the energy received from the sun is absorbed as heat by parabolic trough collectors and in an organic Rankine cycle produces electricity. The rejected heat received from the condenser is also used to produce desalinated water in a multi-effect distillation unit. Also, the produced electricity by the wind turbines in the system is merged with the electricity produced by the organic Rankine cycle which provides the required energy for the reverse osmosis desalination machine. This system is designed to be connected to the network thus the excess electricity is sold to the network. Then after, while considering the city of Chabahar to set up the system in, an exergy-economic analysis is carried out. In this research, for the dual objective optimization, particle swarm optimization and TOPSIS methods have been used and the objective functions studied are exergy efficiency in addition to desalinated water production cost. As a result, in the optimum point, the system’s exergy efficiency is 26.2% and desalinated water production cost is 3.08 dollars per cubic meter of water. It must be pointed out that, to analyze the positive environmental outcomes of setting up this system, it is suggested to make the amount of the received solar and wind energy for commissioning of the complex equivalent to the combined cycle power plant which results in the reduction of 52164 tons of CO2 emitted to the atmosphere.
