As part of the LH2CRAFT project, Task 5.4, led by the National Technical University of Athens (NTUA), focuses on the development of modularity and scalability features in the design of the Hydrogen Distribution and Monitoring System for Storage (HDMSS). The aim is to ensure that the HDMSS can be effectively applied across a wide range of vessel types and sizes—beyond the LH₂ carrier developed in WP4—supporting both new-built and retrofitted hydrogen-powered vessels.
Design principles, parameters, and limitations identified throughout WP5 will be evaluated against representative cases defined in Task 2.4, addressing the use of liquid hydrogen (LH₂) as both fuel and cargo. For cargo-related scenarios, the design process will be expanded to include type A, B, and C tanks, as well as membrane tanks, installed on either deep-sea or short-sea vessels. When hydrogen is used as fuel, the study will focus on cargo and passenger ships equipped with fuel cells or auxiliary generator engines.
A GAP analysis will be performed to compare the HDMSS design developed in Task 5.1 with alternative containment system (CCS) types and designs. This analysis will help identify key differences or confirm the LH₂ HDMSS workflow as a reference baseline procedure, contributing to the harmonisation and standardisation of hydrogen system design in maritime applications.
Through this work, Task 5.4 will provide a blueprint for modular, scalable hydrogen containment systems capable of meeting the diverse needs of future vessels. The results will support ship designers, classification societies, and operators in adopting safe, flexible, and efficient hydrogen solutions across the maritime sector.
