Time-Transient Optimization of Electricity and Fresh Water Cogeneration Cycle Using Gas Fuel and Solar Energy

In this study, a cogeneration cycle in time-transient state is investigated and optimized. A quasi-equilibrium assumed because of the small time increments. Air temperature solar power are calculated hourly. The considered terms energy, exergy, economic environmental analyses. Increasing net present value (the difference between cash inflows outflows over period time) reducing exergy destruction selected as two optimization objective functions. for 20 years operation according to parameters. variables such way that one important variable from each system. To optimize cycle, particle swarm method used. number particles used using trial-and-error method. This optimized 13 42 iterations. After optimization, energy efficiency increased by 0.5%, 0.25%, decreased 1% compared with existing