Comparison of different plant layouts and fuel storage solutions for fuel cells utilization on a small ferry

In the path towards the decarbonization of the maritime sector, Low Temperature Polymer Electrolyte Membrane Fuel Cells (LT-PEMFC) fed by hydrogen are gaining attention as they could guarantee zero local emissions propulsion. In this study, a process simulation model is implemented to analyze the influence of peak shaving in a hybrid LT-PEMFC/lithium-ion battery power plant for the propulsion of a small size RoRo car and passenger ferry in different operative conditions. Results show that battery peak shaving could allow a reduction of FC installed power of up to 72%. As for compressed H2 storage, the results show that for sailing time in the range of 5-10 min, Type I cylinders at 250 bar are a viable option. For longer routes, Type III cylinders at 350 bar or Type IV cylinders at 700 bar should be considered in order to avoid excessive reduction in the pay-load. ? 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.

Automated summary

This study analyzed the impact of peak shaving in a hybrid LT-PEMFC/lithium-ion battery power plant for small RoRo car and passenger ferry propulsion, showing that battery peak shaving can significantly reduce FC installed power. Recommendations were made for different types of compressed H2 storage cylinders based on sailing time to avoid excessive reduction in payload.