Reproducibility Package for Uncertainty-Aware Dynamic Co-Optimization of Ejector-Based Hydrogen Recirculation, Purging, and Water-Thermal Management in a PEM Fuel Cell System

This repository provides the complete code–data reproducibility package for the study entitled “Uncertainty-Aware Dynamic Co-Optimization of Ejector-Based Hydrogen Recirculation, Purging, and Water-Thermal Management in a PEM Fuel Cell System.” The package contains the MATLAB source code, model input data, digitized experimental validation data with source and provenance information, uncertainty-quantification samples and parameter ranges, sensitivity-analysis outputs, optimization and validation results in CSV format, required MAT checkpoint and result files, machine-readable data used to generate the original figures, a data dictionary, file manifest, SHA-256 checksum list, CITATION.cff, and detailed reproduction instructions. The computational framework couples ejector-based hydrogen recirculation, anode purge and drain control, nitrogen crossover, membrane hydration, liquid-water management, cathode air supply and humidification, compressor dynamics, electrochemical performance, and stack thermal management. Calibration and validation were performed against published experimental ejector-system data, and the uncertainty-aware optimization and verification calculations were restricted to the experimentally supported 82.5–108 A dynamic operating envelope. The repository supports reconstruction of the calibration, dynamic validation, uncertainty analysis, robust co-optimization, production verification, control-strategy benchmark, and initialization-sensitivity analyses reported in the associated manuscript. The final robust control design was verified in all 256 local uncertainty realizations without safety, map-validity, or conservation failures. MATLAB source code is distributed under the BSD 3-Clause License. Original data, tables, figure-source data, and documentation are distributed under the Creative Commons Attribution 4.0 International License. Digitized third-party experimental data are included only as transformed numerical values with full source attribution; publisher-formatted articles and figures are not redistributed.