Optimal design of a proton exchange membrane fuel cell-based combined cooling, heating, and power system by an enhanced version of farmland fertility optimizer.

A multiple-objective optimization method has been suggested for a combined cooling, heating, and power (CCHP) system in this study. The combined CHP system includes a heat-recovery system, a humidifier, a gas compressor, and a small size absorption chiller along with a 5-kilowatts Proton Exchange Membrane (PEM) Fuel Cell stack. An enhanced version of Farmland Fertility Optimizer has been suggested for developing the system efficiency concerning economics, environment, and thermodynamics. For system efficiency validation, it has been analyzed in terms of exergy and energy effectiveness, pollutant emission decline, and yearly expense and a comparison of the results with NSGA-II from the literature, and the basic FFO algorithm is carried out. The results show that the maximum value for the exergy efficiency and the annual GHG reduction is 48.08% and 5.45e7 g, respectively. Also, the annual cost has been decreased to 28.30e3 $. Simulation results show 35.12% energy effectiveness which is better than the compared methods. [ABSTRACT FROM AUTHOR]