Browsing by Author "Akci, Hilal"

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    EXERGETIC ANALYSIS OF A SOLAR ENERGY-BASED HYDROGEN PRODUCTION SYSTEM
    (International Association for Hydrogen Energy IAHE, 2022) Hilal Akci; Huseyin Gunerhan; A. Hepbasli; Hepbasli, Arif; Akci, Hilal; Gunerhan, Huseyin; I. Dincer , C.C. Colpan , M.A. Ezan
    In this study energy exergy and sustainability analyses are performed for a solar energy-based hydrogen production system which is modeled with TRNSYS and Engineering Equation Solver (EES) software packages. This system consists of solar photovoltaic panels (PVs) a controller an electrolyzer a metal hydride hydrogen tank used for hydrogen production and storage and Proton Exchange Membrane Fuel Cell (PEMFC) for electricity storage. Dead state temperature is taken as 0 ºC. The results revealed that the PEMFC had the highest energy efficiency of 53.28%. Exergy efficiencies of the solar PV panel the electrolyzer and the PEMFC were determined to be 9.66% 60% and 29.39% respectively. The exergetic sustainability index of the electrolyzer had the maximum value of 2.501. © 2023 Elsevier B.V. All rights reserved.