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RETRACTED: Exergy analysis of a fuel cell power system and optimizing it with Fractional-order Coyote Optimization Algorithm

Li Sun, Xuefeng Han, Yi‐Peng Xu, Navid Razmjooy

2021Energy Reports50 citationsDOIOpen Access PDF

Abstract

This study presents an exergy assessment methodology for a power production system defined by a high-temperature proton exchange membrane fuel cell. The evaluated structure has an organic Rankine cycle for recovering the lost heat. This study provides an optimum balanced model by optimizing the variables of the system. Here, a new improved metaheuristic, called Fractional-order Coyote Optimization Algorithm is proposed to the studied system to provide results with higher accuracy and precision. Three cost functions have been utilized for optimization: irreversibility, work, and exergy. Simulation results of the proposed method are then implemented in a case study and its results are validated by comparing with experimental data, the original COA, and the Genetic Algorithm (GA) from the literature. Final achievements indicate that the proposed algorithm gives the highest confirmation by the experimental data.

Topics & Concepts

ExergyOrganic Rankine cycleMetaheuristicProton exchange membrane fuel cellAlgorithmDegree RankineComputer scienceWork (physics)Genetic algorithmExergy efficiencyMathematical optimizationElectric power systemPower (physics)Optimization algorithmProcess engineeringHeat exchangerFuel cellsEngineeringMathematicsWaste heatMechanical engineeringThermodynamicsChemical engineeringPhysicsThermodynamic and Exergetic Analyses of Power and Cooling SystemsProcess Optimization and IntegrationAdvanced Thermodynamics and Statistical Mechanics