GCMD, NYK will analyse impact of long-term biofuel use on marine engines

The Global Centre for Maritime Decarbonisation (GCMD) and Nippon Yusen Kabushiki Kaisha (NYK Line) will study the impact of continuous use of FAME-based biofuels on functioning of marine engines.

PHOTO: Bulk carrier owned by Nippon Yusen Kabushiki Kaisha arm, NYK Bulk & Projects Carriers. NYK Bulk & Projects Carriers

The six-month long project will trial B24-VLSFO blend comprising 24% fatty acid methyl esters (FAME)-based biofuel component and 76% VLSFO on an NYK Line-owned vessel.

Japanese shipping major NYK Line will manage the bunker fuel procurement for the project.

FAME-based biofuel is derived from feedstocks like used cooking oil and palm oil mill effluent. It offers a “promising fuel alternative for immediate GHG emissions reduction” in the shipping industry, the GCMD said.

“While its compatibility with existing engines and bunkering infrastructure makes it an attractive ‘drop-in’ green fuel, concerns about the impact of its extended use on vessel operations remain. Unlike conventional marine fuels, one of the challenges with FAME is that it can be more susceptible to chemical degradation and microbial growth, the by-products of which can corrode shipboard engine systems and/ or clog fuel delivery systems,” the non-profit argued.

The trial will focus on the effects of continuous and long-term use of FAME-based biofuels on engine performance and fuel supply system operations. Specifically, it will study “corrosion of engine systems and valve failures, related to continuous biofuels use” and measures to mitigate these effects.

The findings will be used to set operational guidelines for vessels using this type of biofuel.

“This pilot will also evaluate the total cost of ownership of using biofuels, covering the cost of fuel and additional maintenance costs associated with its use,” the GCMD added.

By Konica Bhatt

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