This work creates a simulation-based scheme to optimize Proton Exchange Membrane Fuel Cells (PEMFCs) in the maritime sector, focusing on the interim functions of thermal, water, and hydrogen pathways in defining efficiency and sustainability. Findings indicate that although peak efficiencies are close to 0.90, dependable operation is limited to 0.84 -0.87, better than the hydration limit of 0.82 and worse than the thermal instability threshold of 0.88. The best hydrogen usage is between 70 -82 because lower percentages were tiger and higher percentages were almost 2 times higher rates of degradation when 0.006 V/1000h (harbour) and 0.012 V/1000h (sprint) were used in respectively. Mode comparison proves cruise operation at 91% net efficiency, 13% auxiliary demand, and 27% performance 27 % Excellent, 36% Good, 3% Fail, and sprinting is 86% efficiency and 16% auxiliaries with 27% Fail/Poor results. This study outsmarts the other studies by being the first to establish quantitative safe operation envelopes of maritime PEMFCs and provide a workable blueprint of sustainable deployment by integrating radar, multi-panel, and 3D threshold-based analysis.
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Alrwashdeh,S S.. (2026). Engineering advanced thermal and water pathways to enhance PEMFC reliability in maritime applications. Al-Qadisiyah Journal for Engineering Sciences, 19(2), 246-256. doi: 10.30772/qjes.2025.165747.1765
MLA
Alrwashdeh,S S.. "Engineering advanced thermal and water pathways to enhance PEMFC reliability in maritime applications", Al-Qadisiyah Journal for Engineering Sciences, 19, 2, 2026, 246-256. doi: 10.30772/qjes.2025.165747.1765
HARVARD
Alrwashdeh S S.. (2026). 'Engineering advanced thermal and water pathways to enhance PEMFC reliability in maritime applications', Al-Qadisiyah Journal for Engineering Sciences, 19(2), pp. 246-256. doi: 10.30772/qjes.2025.165747.1765
CHICAGO
S S. Alrwashdeh, "Engineering advanced thermal and water pathways to enhance PEMFC reliability in maritime applications," Al-Qadisiyah Journal for Engineering Sciences, 19 2 (2026): 246-256, doi: 10.30772/qjes.2025.165747.1765
VANCOUVER
Alrwashdeh S S.. Engineering advanced thermal and water pathways to enhance PEMFC reliability in maritime applications. QJES. 2026;19(2):246-256. doi: 10.30772/qjes.2025.165747.1765