Korean Register Offers AIP For New Samsung Heavy Industries Ammonia-Ready VLGC Design

Approval in Principle (AIP) was given by the international classification society Korean Register (KR) for the design of a new ammonia-fuel-ready vessel on 5 September. The Very Large Gas Carrier (VLGC) will be capable of using ammonia as a fuel as well as carrying it as bulk cargo.

Jointly developed by Samsung Heavy Industries (SHI) and KR, the new design represents a significant step forward in the expansion of an international supply chain for clean fuel.

KR Approval for New Samsung Heavy Industries Ammonia-Ready VLGC Design

Ammonia is a stable, cost-effective and clean energy source but can cause stress corrosion cracking in carbon manganese steel or nickel steel. To minimize these risks, management of the tensile stress and corrosive environment of the steel is essential. The SHI design maintains the actual yield stress of the ammonia tank steel below KR’s Rule requirements and is able to maintain a temperature close to boiling point.

Announcing the approval of the new design at Gastech 2022 in Milan, Kyu-jin Yeon, Head of KR’s Plan Approval Center said:

“We are committed to supporting the responsible use of ammonia in a sustainable energy economy: ammonia is an important green energy source and is expected to account for a significant proportion of future ship fuel demand. However, whilst the shipping industry has significant experience of carrying ammonia as a bulk cargo, using it as a fuel brings new challenges and fuel systems must be designed, manufactured, operated and maintained in a way which ensures the safety of the ship crews, port staff and fuel suppliers. KR will continue to co-operate with SHI to develop further green technologies and become a leader in this field.”

Young-kyu Ahn, Head of SHI’s Shipbuilding Sales Engineering Team said:

“Ammonia fuel propulsion vessels are one of the best ways of meeting the IMO’s carbon neutral targets, and we plan to commercialize them with differentiated technology. Moreover, our Research Institute is spurring the development of green technologies such as carbon reduction and hydrogen transport technology.”

The new design is the largest ammonia-ready vessel to have been approved by KR. The classification society also recently approved designs for a 60,000m3 ammonia-fueled ammonia carrier and a 38,000m3 ammonia carrier/bunkering vessel. KR is further supporting the development of ammonia-related technologies by developing its guidance for ammonia-fueled ships, and its participation in the Green Ammonia Marine Transport and Bunkering Consortium.

The International Maritime Organization (IMO) has mandated at least 50% reduction of greenhouse gas emissions from ships, compared to 2008, by 2050.

According to the 2050 Carbon Roadmap report released by the International Energy Agency (IEA), ammonia is expected to account for 45% of ship fuel demand in 2050.

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