Biofuel Blending Viscosity Considerations for MFMs

A study by the Global Centre for Maritime Decarbonisation (GCMD) has explored the characteristics of marine fuels when blended with FAME-based biofuels. The research indicates that such blends, particularly with residual marine fuel grades like VLSFO and HSFO, may exhibit viscosity levels that fall outside the typical validated operating range for mass flow meters (MFMs).

The findings suggest that the introduction of FAME components can alter the physical properties of the fuel mixture. This alteration primarily concerns viscosity, a critical parameter for the accurate measurement and handling of bunker supplies. Maintaining fuel properties within specified ranges is essential for operational efficiency and compliance.

Mass flow meters are widely used in the bunkering sector for their precision in measuring fuel deliveries. Their validation typically covers a specific range of fuel viscosities. When blended fuels deviate from this range, it can introduce complexities in ensuring the accuracy of measurements.

Industry stakeholders are continuously working to understand the implications of new fuel formulations. This research contributes to the ongoing dialogue regarding the technical aspects of integrating alternative fuels into existing maritime operations and infrastructure.

The study underscores the importance of comprehensive testing and characterisation of novel fuel blends. Such efforts are crucial for developing robust operational guidelines and ensuring the reliability of measurement systems across the supply chain.

Further collaboration among fuel suppliers, equipment manufacturers, and maritime operators will be instrumental in addressing these technical considerations. This collective approach supports the seamless adoption of new fuel types while maintaining high standards of accuracy and operational integrity.