Speaker
Description
Hydrogen from renewable energy (green hydrogen) or fossil fuel with carbon capture (blue hydrogen) will be a key enabler for decarbonization. Even though the production of hydrogen will be less centralized than fossil fuel, there will still be local imbalance of supply and demand in renewable energy. Such imbalance can be resolved by transportation of liquid hydrogen (LH$_2$) on a large-scale over 50,000m$^3$ per ship over a long distance. Seaborne transportation of liquid hydrogen in bulk imposes several challenges due to its low boiling temperature, low density, low molecular weight, and high flammability in case of leakage. Furthermore, there will be more emphasis on minimizing loss of cargo as the price of hydrogen fuel will be likely to be higher than fossil fuel. Therefore, optimization of the ship design in terms of total cost of ownership is crucial to make the business case viable. In this paper, a design lab framework is presented to evaluate the system model for transportation of hydrogen on a large scale. Design Lab is a framework developed to evaluate the ship performance with realistic operational scenario and ship models that accounts all relevant technical aspects of the vessel. The framework provides an integrated process for the holistic approach to evaluate the system so that the quick iteration of the design process is possible. It allows the designers to explore new ideas easily to arrive at the optimal design and understand the system better. The design study suggests the optimal transit speed of the vessel for the given ship design and the operational profile that minimizes the total cost of ownership.
References
Yum, Kevin Koosup, Nielsen, Jørgen Bremnes, Kim, Donghoi., Design of a Large-Scale Liquid Hydrogen Carrier - LH2 Pioneer, 2022, Proceedings of Global Conference on Naval Architecture and Ocean Engineering. Changwon, South Korea
| Keywords | Hydrogen, Transportation, Maritime, Design Study |
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