- ABS’s latest report explores the feasibility of nuclear propulsion for maritime applications, particularly using a high-temperature, gas-cooled reactor (HTGR) on an LNG carrier.
- The study reveals benefits in emissions reduction, operational efficiency, and design adjustments for nuclear-powered LNG carriers.
- ABS actively supports nuclear innovation in the maritime sector, partnering with the U.S. DOE and industry leaders.
In its newest report, ABS investigates the potential of small modular reactors for maritime applications, focusing on integrating an HTGR system into a 145,000m³ LNG carrier. This study, conducted with Herbert Engineering Corporation (HEC), aims to guide future nuclear propulsion projects by addressing the technical feasibility and safety aspects, reports News ABS.
Examining HTGR’s Impact on LNG Carrier Design
ABS and HEC explored how a high-temperature, gas-cooled reactor could transform a standard LNG carrier’s design, operation, and emissions.
The study provides insights into heat and energy management, shielding, weight distribution, and other technical factors for integrating nuclear propulsion in LNG carriers.
Faster Speeds and Zero Emissions
The analysis shows that HTGR technology offers several operational advantages. It enables higher transit speeds and promises zero-emission voyages.
Additionally, HTGR technology requires no refueling over its six-year operational life, adding further appeal for maritime applications.
ABS Highlights Safety and Suitability for Marine Use
Patrick Ryan, ABS’s Senior Vice President, highlighted the early-stage marine adaptation of nuclear technology. While well-established on land, its adaptation to maritime use faces unique challenges.
ABS is dedicated to assessing the technology’s suitability for various vessel types, with LNG carriers as one application.
Unique Design Features of Nuclear-Powered LNG Carriers
The study suggests design changes for nuclear-propelled LNG carriers, including placing reactors at the rear, situating batteries forward, and reinforcing the hull.
Due to space and safety needs, the HTGR technology is only feasible for larger LNG carriers.
ABS’s Broader Nuclear Adoption Efforts
This study is part of ABS’s broader initiative to support nuclear adoption at sea. Earlier this month, ABS released the first-ever rules for floating nuclear power plants.
It was presented at a forum co-hosted with Idaho National Laboratory, emphasizing ABS’s ongoing commitment to nuclear technology advancement.
Collaboration with the U.S. Department of Energy
The U.S. DOE has awarded ABS a contract to study adoption barriers for advanced nuclear propulsion on commercial vessels.
This contract signifies a significant step in ABS’s nuclear research and collaboration efforts, further driving industry progress.
ABS’s Resources for Nuclear Power Systems
ABS has published the “ABS Requirements for Nuclear Power Systems for Marine and Offshore Applications,” which outlines essential standards for nuclear adoption in the maritime sector.
Additionally, the detailed “Pathways To A Low Carbon Future Floating Nuclear Power Plant” study is available.
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Source: ABS
