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Diesel engines are the most trusted power sources in the transportation industry. They intake air and emit, among others, the pollutants NO_X and particulate matter. Continuous efforts and tests have tried to reduce fuel consumption and exhaust emissions of internal combustion engines. Alternative fuels are key to meeting upcoming stringent emission norms. We study hydrogen as an air-enrichment medium with diesel as an ignition source in a stationary diesel engine system to improve engine performance and reduce emissions. Stationary engines can be operated with less fuel than neat diesel operations, resulting in lower smoke levels and particulate emissions. Hydrogen (H₂)-enriched air systems in diesel engines enable the realization of higher brake thermal efficiency, resulting in lower specific energy consumption (SEC). NO_X emissions are reduced from 2762 to 515ppm with 90% hydrogen enrichment at …