Mitsubishi Shipbuilding Co., Ltd., part of the Mitsubishi Heavy Industries (MHI) Group, has received an order from Hitachi Zosen Marine Engine Co., Ltd. (HZME) for its MAmmoSS ammonia fuel handling system, the company announced on 26 June.

The system will be installed at HZME’s facility and used for shop testing of ammonia marine engines. According to Mitsubishi Shipbuilding, the MAmmoSS has been designed and optimised to be compatible with ammonia marine engines from two marine engine licensors — Everllence SE and WinGD — both of which have licensed their technology to HZME.

The MAmmoSS, which stands for Mitsubishi Ammonia Supply and Safety System, comprises an ammonia fuel supply system (AFSS) and an ammonia gas abatement system (AGAS), together with control equipment to integrate and regulate both systems.

Ammonia has attracted growing attention as a next-generation marine fuel due to the absence of CO2 emissions when burned. However, Mitsubishi Shipbuilding notes that, as ammonia is a toxic fluid, safe handling technology on board ships is a prerequisite for its adoption, and the company expects this to drive demand for the MAmmoSS.

Mitsubishi Shipbuilding said it intends to continue developing products for ammonia-fuelled vessels as the market expands, while enhancing the functionality of its systems to meet customer requirements.