Aug 14 – 18, 2023
Europe/Berlin timezone

[Invited] Challenges and Considerations in Liquid Hydrogen Systems Design for Marine Applications

Aug 15, 2023, 1:40 PM
20m
Taurus 1

Taurus 1

Speaker

Ms Padmini Mellacheruvu (Lloyd's Register)

Description

Hydrogen is a promising alternative fuel for marine applications with the potential to reduce greenhouse gas emissions. Hydrogen, whether in gaseous or liquid form, presents unique properties that require careful consideration for marine environments. The flammability and fast dispersion of gaseous hydrogen pose challenges for detection and suppression of combustion on marine vessels. Liquid hydrogen's low temperature and high expansion ratio necessitate specialized design to ensure safe containment and minimize heat transfer. This key design challenges and considerations associated with hydrogen and vacuum systems in the context of liquid hydrogen applications. This conference submission presents an overview of the key design challenges and considerations including material selection, fuel containment, component compatibility, piping and layout considerations, and vacuum level requirements for liquid hydrogen systems. These insights contribute to the development of efficient and safe liquid hydrogen systems for marine applications, facilitating the adoption of hydrogen as a sustainable energy source in the maritime industry.

References

  1. Lloyd's Register’s Rules and Regulations for the Classification of Ships using Gases or other Low-flashpoint Fuels, Appendix LR3– Requirements for Ships Using Hydrogen as Fuel
  2. Lloyd's Register’s guidance note for liquid hydrogen systems
Keywords Hydrogen, Liquid hydrogen, marine safety,

Primary author

Ms Padmini Mellacheruvu (Lloyd's Register)

Co-author

Mr Liam Blackmore (Lloyd's Register)

Presentation materials

There are no materials yet.