The reliquefaction performance of the new X-Reli system from Samsung Heavy Industries (SHI) for low pressure big gas engines has been verified during tests in the presence of ABS.
The design, which received ABS approval in principle (AIP) for conceptual design in 2019 and detailed design approval in 2020, uses patented technology to operate the low-pressure cooling process without use additional refrigerant.
The performance verification was carried out using the same equipment installed on the LNG carriers to demonstrate the operating conditions when installed on the vessels. The system is intended to conserve LNG cargo volume under various operating conditions and to minimize boil-off gas (BOG) release.
Dong-Yeon Lee, Director of SHI’s Ship and Offshore Research Institute, said, “LNG carriers equipped with the X-Reli can fully re-liquefy generated BOGs even in anchor mode, which will significantly reduce gas emissions at greenhouse effect and will provide more of a solution to address the ESG management of client companies.
“Reliquefaction allows for increased flexibility and the potential to maximize freight delivery and has been an important technology in the evolution of LNG carrier operations as the industry has developed more efficient use of freight fuel and is still looking to achieve emission reduction targets. The ability to operate it at low or medium pressure reduces barriers to technology adoption and ABS is proud to be able to facilitate this and confirm compliance with existing rules and regulations and safety standards,” said Darren Leskoski, Vice President ABS, Northern Pacific. Regional business development.
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