Converting a marine light-duty engine to operate on 100% hydrogen fuel

We have successfully completed the testing of a converted diesel-powered light-duty signal cylinder marine engine, which has been adapted to operate on 100% hydrogen fuel. This groundbreaking conversion included the installation of a new Data Acquisition (DAQ) system, allowing for real-time access to all combustion parameters without the need for post-processing.

The engine demonstrated a noteworthy indicated thermal efficiency of approximately 40%. This figure is especially impressive given the engine's ability to operate at a lambda value of up to 4.3, indicating a highly efficient and lean combustion process. Throughout the testing, the engine displayed exceptional stability, as evidenced by a Coefficient of Variation (COV) in combustion performance remaining below 1.5%.

Furthermore, the environmental benefits of this conversion are striking, with the testing revealing an extraordinary 99.98% reduction in carbon dioxide emissions. These results highlight the engine's potential as a sustainable alternative for marine applications, establishing a new benchmark for emissions reductions while maintaining operational efficiency and stability.