H2 hydrogen

Hydrogen fuel will be used to provide continuous carbon-free power, electricity and heat on demand


Hydrogen has long been envisioned as the energy carrier to replace carbon-based fuels, but without significant breakthroughs its application in internal combustion engines has stayed at research level. A boom in research has surged within the recent years as the world desperately searches low-emission alternatives to traditional maritime fuels. This work defines a framework for a prototype hydrogen engine that will be built in later phases of the project. Literature and research papers were examined to discover established hydrogen solutions for internal combustion engines. The gained knowledge is used as a framework on how to retrofit an existing engine to allow the use of hydrogen as the main fuel instead of natural gas. In engine parts where retrofitting is not possible, new solutions are presented. Both the advantages and disadvantages of hydrogen are considered. Thus, the hydrogen engine specifications and auxiliary system requirements were established. As the first step in retrofitting an existing engine to be hydrogen driven, a framework of engine requirements was achieved. Following this work, the hydrogen engine components will be further defined to develop and test a working hydrogen engine prototype.

This work discusses the most relevant rules and regulations to date that must be regarded when developing a hydrogen fuel system intended for an internal combustion engine. A literature review was done based on several standards, rules, regulations and scientific journal papers including e.g. IGC and IGF codes and rules of hydrogen fuel cell installations.

An essential part of the work was to recognise the aspects of designing a safe marine hydrogen fuel system. This included evaluation of storage tank, pressure regulation system, piping system and safety aspects including gas detectors and ventilation aspects. The work continues and a prototype hydrogen fuel system will be designed during the CHEK project.

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