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– AIP Acquired from ClassNK for Future Viability of Ammonia Fueled Carriers –

– The new design will allow a small scale upgrade when ammonia fuel comes into practical application
– Ammonia-carrying VLGCs now fueled with LPG are ideally suited for future use of ammonia fuel

TOKYO, June 10, 2022 — (JCN Newswire) — Mitsubishi Shipbuilding Co., Ltd., part of Mitsubishi Heavy Industries (MHI) Group, has completed the design of a Very Large Gas Carrier (VLGC) originally powered by liquefied petroleum (LPG) but adaptable to the future use of ammonia as the main fuel(1). Approval in Principle (AIP)(2) for the design was acquired from the Japanese classification society ClassNK.

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Image of an LPG fueled VLGC convertible to ammonia

The conceptual design of an LPG-fueled VLGC allowing for future conversion to ammonia fuel was developed based on Mitsubishi Shipbuilding’s experience and expertise in building and delivering over 80 very large LPG carriers and general purpose gas carriers capable of carrying ammonia. Creating a design that allows conversion to ammonia fuel based on future needs should allow for relatively small-scale modernization of ships when the use of ammonia fuel becomes a viable option.

Ammonia is expected to be widely used in the future as a stable and clean source of energy. Because it does not emit CO2 when burned, ammonia is attracting attention as a fuel that will contribute significantly to the reduction of greenhouse gas (GHG) emissions in industry maritime. Mitsubishi Shipbuilding’s newer VLGCs, in addition to using LPG fuel as an alternative to conventionally-spread heavy oil, can also carry ammonia as cargo. As such, the company’s VLGCs are ideally suited for future ammonia fuel use. In recent years, Mitsubishi Shipbuilding has conducted investigations into the potential use of ammonia in VLGCs as a means of achieving carbon neutrality in the global maritime industry by 2050, a goal jointly pursued by the public and private sectors. with the aim of reducing GHG emissions.

As part of the energy transition strategy promoted by MHI Group, Mitsubishi Shipbuilding has implemented a growth strategy called “MARINE FUTURE STREAM”. The strategy focuses on two overarching goals: “the decarbonisation of the maritime economy” through the use of renewable energy and carbon recycling, and “a safe and secure future for society” through autonomous operation. and electrification. The company seeks to achieve this dual objective through the creation and application of marine innovations. Going forward, as a marine systems integrator, Mitsubishi Shipbuilding will continue to promote decarbonization in the maritime industry and devote its resources to achieving carbon neutrality, as a way to help reduce environmental loads globally. .

(1) This target is in line with ClassNK’s “Guidelines for Vessels Using Alternative Fuels”, which outlines measures for alternative fuel safety requirements.
(2) Approval in Principle (AIP) indicates that a certification body has reviewed the basic design of an item and confirmed that it meets the relevant technical requirements and safety standards. Mitsubishi Shipbuilding’s conceptual design inspection was carried out based on the IGC Code (International Code for the Construction and Equipment of Ships Carrying Liquefied Gases in Bulk) and ClassNK’s own ship classification regulations.

About MHI Group

Mitsubishi Heavy Industries (MHI) Group is one of the world’s leading industrial groups, spanning energy, smart infrastructure, industrial machinery, aerospace and defence. MHI Group combines cutting-edge technology with deep experience to deliver innovative integrated solutions that help achieve a carbon-neutral world, improve quality of life and ensure a safer world. For more information, please visit www.mhi.com or follow our insights and stories at spectra.mhi.com.

Source: Mitsubishi Heavy Industries, Ltd.

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